/*
Theme Name: 凛榆·极简 (Linyu Minimal)
Theme URI: https://www.nsn0704y.cn
Author: Linyu
Author URI: https://www.nsn0704y.cn
Description: 极简留白风格个人博客主题。白底、大留白、优雅排版，专注阅读体验。
Version: 2.0.0
Requires at least: 6.0
Tested up to: 7.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: linyu-minimal
Tags: blog, minimal, white, clean
*/

/* ========== 变量 ========== */
:root {
  --color-bg: #ffffff;
  --color-bg-soft: #fafafa;
  --color-text: #1a1a1a;
  --color-text-secondary: #6b6b6b;
  --color-text-light: #9a9a9a;
  --color-border: #e8e8e8;
  --color-accent: #2f6b5c;
  --color-accent-soft: rgba(47, 107, 92, 0.14);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --content-width: 720px;
  --space: 24px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-soft: 0 20px 60px rgba(0, 0, 0, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #111111;
    --color-bg-soft: #161616;
    --color-text: #ededed;
    --color-text-secondary: #9b9b9b;
    --color-text-light: #6f6f6f;
    --color-border: #262626;
    --color-accent: #6fae9c;
    --color-accent-soft: rgba(111, 174, 156, 0.18);
    --shadow-soft: 0 20px 60px rgba(0, 0, 0, 0.5);
  }
}

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

html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  background:
    linear-gradient(to bottom, var(--color-accent-soft) 0%, transparent 420px),
    var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.9;
  transition: background 0.4s ease, color 0.4s ease;
}

/* 固定装饰：左上/右下品牌色光斑 */
body::before,
body::after {
  content: "";
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
}

body::before {
  width: 560px;
  height: 560px;
  top: -180px;
  left: -160px;
  background: radial-gradient(circle, var(--color-accent-soft), transparent 70%);
}

body::after {
  width: 520px;
  height: 520px;
  bottom: -180px;
  right: -160px;
  background: radial-gradient(circle, var(--color-accent-soft), transparent 70%);
}

a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.25s ease, opacity 0.25s ease;
}

a:hover {
  opacity: 0.65;
}

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

::selection {
  background: var(--color-text);
  color: var(--color-bg);
}

/* 细滚动条 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #d4d4d4;
  border-radius: 4px;
}

@media (prefers-color-scheme: dark) {
  ::-webkit-scrollbar-thumb {
    background: #3a3a3a;
  }
}

/* ========== 头部（毛玻璃） ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.4s ease;
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(17, 17, 17, 0.72);
  }
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 22px var(--space);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 4px;
}

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

.site-desc {
  font-size: 11px;
  color: var(--color-text-light);
  margin-top: 3px;
  letter-spacing: 2px;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
}

.main-nav a {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--color-text-secondary);
  position: relative;
  padding-bottom: 4px;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-text);
  transition: width 0.3s var(--ease-out);
}

.main-nav a:hover {
  opacity: 1;
  color: var(--color-text);
}

.main-nav a:hover::after,
.main-nav .current-menu-item > a::after,
.main-nav .current_page_item > a::after {
  width: 100%;
}

.main-nav .current-menu-item > a,
.main-nav .current_page_item > a {
  color: var(--color-text);
}

/* 搜索按钮 */
.header-right {
  display: flex;
  align-items: center;
  gap: 22px;
}

.search-toggle {
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  transition: color 0.25s ease, transform 0.25s ease;
}

.search-toggle:hover {
  color: var(--color-text);
  transform: scale(1.1);
}

/* 登录链接 */
.account-link {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--color-text-secondary);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.account-link:hover {
  opacity: 1;
  color: var(--color-text);
  border-bottom-color: var(--color-text);
}

/* 搜索面板 */
.search-panel {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  animation: searchDrop 0.3s var(--ease-out);
}

@keyframes searchDrop {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.search-panel-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 18px var(--space);
}

.search-form {
  display: flex;
  gap: 10px;
}

.search-field {
  flex: 1;
  padding: 12px 18px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-soft);
  color: var(--color-text);
  font-size: 15px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.search-field:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.search-submit {
  padding: 12px 26px;
  border: none;
  border-radius: 8px;
  background: var(--color-text);
  color: var(--color-bg);
  font-size: 14px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: opacity 0.25s ease;
}

.search-submit:hover {
  opacity: 0.8;
}

/* ========== 首页分类卡片 ========== */
.cat-section {
  margin-bottom: 56px;
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}

.cat-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-bg);
  transition: all 0.3s var(--ease-out);
}

.cat-card:hover {
  opacity: 1;
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  transform: translateY(-3px);
}

.cat-name {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 2px;
}

.cat-count {
  font-size: 12px;
  color: var(--color-text-light);
}


/* ========== 主体 ========== */
.site-main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 64px var(--space) 96px;
  min-height: 60vh;
}

/* ========== 首页 Hero ========== */
.hero {
  padding: 110px 0 80px;
  text-align: center;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(40px, 7vw, 64px);
  font-weight: 700;
  letter-spacing: 8px;
  line-height: 1.3;
  margin-bottom: 28px;
  background: linear-gradient(180deg, var(--color-text) 30%, var(--color-text-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: heroFadeIn 1s var(--ease-out) both;
}

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-line {
  width: 44px;
  height: 1px;
  background: var(--color-text);
  margin: 0 auto 28px;
  animation: heroLine 1.2s var(--ease-out) 0.2s both;
}

@keyframes heroLine {
  from {
    width: 0;
    opacity: 0;
  }
  to {
    width: 44px;
    opacity: 1;
  }
}

.hero-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  letter-spacing: 3px;
  margin-bottom: 14px;
  animation: heroFadeIn 1s var(--ease-out) 0.35s both;
}

.hero-welcome {
  font-size: 13px;
  color: var(--color-text-light);
  letter-spacing: 1px;
  animation: heroFadeIn 1s var(--ease-out) 0.5s both;
}

/* ========== 区块标题 ========== */
.section-title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 4px;
  padding-bottom: 18px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 36px;
  height: 1px;
  background: var(--color-text);
}

/* ========== 文章列表 ========== */
.post-item {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.post-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.post-item:first-child {
  padding-top: 8px;
}

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

.post-item .post-meta {
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.post-item h2 {
  font-family: var(--font-serif);
  font-size: 25px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 12px;
  transition: transform 0.35s var(--ease-out);
}

.post-item h2 a {
  color: var(--color-text);
}

.post-item:hover h2 {
  transform: translateX(8px);
}

.post-item h2 a::after {
  content: " →";
  opacity: 0;
  transition: opacity 0.3s ease;
}

.post-item:hover h2 a::after {
  opacity: 1;
}

.post-excerpt {
  font-size: 14.5px;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

/* ========== 文章页 ========== */
.post-header {
  margin-bottom: 44px;
}

.post-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 4.5vw, 34px);
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 16px;
}

.post-meta {
  font-size: 12.5px;
  color: var(--color-text-light);
  letter-spacing: 1.5px;
}

.post-content {
  font-size: 16.5px;
  line-height: 2.05;
  color: var(--color-text);
}

.post-content p {
  margin-bottom: 1.6em;
}

.post-content h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  margin: 2em 0 1em;
  line-height: 1.5;
}

.post-content h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin: 1.8em 0 0.8em;
}

.post-content ul,
.post-content ol {
  margin: 0 0 1.6em 1.6em;
}

.post-content li {
  margin-bottom: 0.5em;
}

.post-content blockquote {
  border-left: 2px solid var(--color-text);
  padding: 4px 0 4px 24px;
  margin: 1.8em 0;
  color: var(--color-text-secondary);
  font-style: italic;
  font-family: var(--font-serif);
}

.post-content img {
  border-radius: 6px;
  margin: 1em 0;
}

.post-content pre {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px 22px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.7;
  margin: 1.6em 0;
}

.post-content code {
  font-family: "SF Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 0.88em;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  padding: 2px 6px;
  border-radius: 4px;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
}

.post-content a {
  color: var(--color-text);
  border-bottom: 1px solid rgba(0, 0, 0, 0.3);
  transition: border-color 0.25s ease;
}

.post-content a:hover {
  opacity: 1;
  border-bottom-color: var(--color-text);
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2.4em 0;
}

/* 标签 */
.post-tags {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-light);
}

.post-tags a {
  color: var(--color-text-secondary);
  margin-right: 14px;
}

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

/* 文章封面图 */
.post-cover {
  margin-bottom: 28px;
  border-radius: 10px;
  overflow: hidden;
}

.post-cover img {
  display: block;
  width: 100%;
}

/* ========== 评论 ========== */
.comments-area {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.comments-title,
.comment-reply-title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.comment-list {
  list-style: none;
  margin: 0 0 40px;
}

.comment-list .comment-body {
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14.5px;
}

.comment-list .comment-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  font-weight: 600;
  font-size: 14px;
}

.comment-list .avatar {
  border-radius: 50%;
}

.comment-list .comment-metadata {
  font-size: 12px;
  color: var(--color-text-light);
  margin-bottom: 10px;
}

.comment-list .comment-metadata a {
  color: var(--color-text-light);
}

.comment-list .children {
  list-style: none;
  margin-left: 40px;
}

.comment-reply-link {
  font-size: 13px;
  color: var(--color-accent) !important;
  border-bottom: none !important;
}

/* 评论表单 */
.comment-form p {
  margin-bottom: 16px;
}

.comment-form label {
  display: block;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-soft);
  color: var(--color-text);
  font-size: 14.5px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.comment-form input:focus,
.comment-form textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.comment-form .submit-btn {
  padding: 12px 34px;
  border: none;
  border-radius: 8px;
  background: var(--color-text);
  color: var(--color-bg);
  font-size: 14px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: opacity 0.25s ease;
}

.comment-form .submit-btn:hover {
  opacity: 0.8;
}

/* ========== 归档页 ========== */
.archive-month {
  margin-bottom: 36px;
}

.archive-month-title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: baseline;
  gap: 12px;
}

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

.archive-count {
  font-size: 12px;
  color: var(--color-text-light);
  font-weight: 400;
  letter-spacing: 1px;
}

.archive-posts {
  list-style: none;
  margin: 16px 0 0;
}

.archive-posts li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: 14.5px;
  display: flex;
  gap: 16px;
}

.archive-posts li:last-child {
  border-bottom: none;
}

.archive-date {
  color: var(--color-text-light);
  font-size: 13px;
  flex-shrink: 0;
  padding-top: 1px;
}

.archive-posts a:hover {
  color: var(--color-accent);
  opacity: 1;
}

/* 页脚备案号 */
.footer-icp {
  margin-top: 8px;
}

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

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

/* 回到顶部 */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-bg);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.25s ease, border-color 0.25s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  z-index: 90;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ========== 友情链接 ========== */
.links-article {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 0 0;
}

.links-title {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 20px;
}

.links-content ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.links-content ul li {
  padding: 14px 18px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  margin-bottom: 10px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.links-content ul li:hover {
  border-color: var(--color-accent);
  transform: translateX(4px);
}

.links-content ul li a {
  font-weight: 500;
}

/* ========== 登录 / 注册 ========== */
.auth-wrap {
  max-width: 420px;
  margin: 0 auto;
  padding: 40px 0 20px;
}

.auth-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 44px 40px;
  box-shadow: var(--shadow-soft);
}

.auth-title {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 8px;
}

.auth-sub {
  font-size: 13.5px;
  color: var(--color-text-light);
  margin-bottom: 28px;
  letter-spacing: 1px;
}

.auth-form p,
.login-form p {
  margin-bottom: 18px;
}

.auth-form label,
.login-form label {
  display: block;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"],
.login-form input[type="text"],
.login-form input[type="password"] {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg-soft);
  color: var(--color-text);
  font-size: 14.5px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.auth-form input:focus,
.login-form input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.login-remember {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.login-remember input {
  accent-color: var(--color-accent);
}

.auth-btn {
  display: inline-block;
  padding: 12px 30px;
  border: 1px solid var(--color-text);
  border-radius: 8px;
  background: var(--color-text);
  color: var(--color-bg);
  font-size: 14px;
  letter-spacing: 2px;
  cursor: pointer;
  text-align: center;
  transition: opacity 0.25s ease;
}

.auth-btn:hover {
  opacity: 0.82;
  color: var(--color-bg);
}

.auth-btn-ghost {
  background: transparent;
  color: var(--color-text);
}

.auth-btn-ghost:hover {
  background: var(--color-bg-soft);
  color: var(--color-text);
}

.auth-btn-block {
  display: block;
  width: 100%;
  border: none;
}

/* wp_login_form 提交按钮 */
.login-submit input[type="submit"] {
  display: block;
  width: 100%;
  padding: 12px 30px;
  border: none;
  border-radius: 8px;
  background: var(--color-text);
  color: var(--color-bg);
  font-size: 14px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: opacity 0.25s ease;
}

.login-submit input[type="submit"]:hover {
  opacity: 0.82;
}

.auth-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.auth-links {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  font-size: 13px;
}

.auth-links a {
  color: var(--color-text-secondary);
}

.auth-links a:hover {
  color: var(--color-accent);
  opacity: 1;
}

.auth-notice {
  padding: 12px 16px;
  border-radius: 8px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 13.5px;
  margin-bottom: 20px;
}

.auth-notice-ok {
  background: rgba(47, 107, 92, 0.1);
  color: var(--color-accent);
}

.auth-tip {
  font-size: 12.5px;
  color: var(--color-text-light);
}

/* 验证码 */
.captcha-inner {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

.captcha-inner input {
  flex: 1;
}

.captcha-img {
  height: 46px;
  width: 130px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  background: #f6f6f6;
}

.auth-hello {
  font-size: 16px;
  color: var(--color-text-secondary);
}

/* ========== 页面标题 ========== */
.page-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.page-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 36px;
  height: 1px;
  background: var(--color-text);
}

/* ========== 分页 ========== */
.pagination {
  margin-top: 56px;
  text-align: center;
  font-size: 14px;
  letter-spacing: 1px;
}

.pagination .page-numbers {
  display: inline-block;
  padding: 7px 15px;
  margin: 0 4px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text);
  transition: all 0.25s ease;
}

.pagination .page-numbers.current {
  background: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

.pagination .page-numbers:hover {
  opacity: 1;
  border-color: var(--color-text);
}

/* ========== 文章导航 ========== */
.post-navigation {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
  font-size: 14px;
}

.post-navigation a {
  color: var(--color-text-secondary);
  max-width: 45%;
  transition: color 0.25s ease;
}

.post-navigation a:hover {
  opacity: 1;
  color: var(--color-text);
}

.post-navigation .nav-next {
  text-align: right;
}

/* ========== 页脚 ========== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 44px var(--space);
  text-align: center;
  font-size: 12.5px;
  color: var(--color-text-light);
  letter-spacing: 2px;
}

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

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

/* ========== 404 ========== */
.error-404 {
  text-align: center;
  padding: 100px 0;
}

.error-404 h1 {
  font-family: var(--font-serif);
  font-size: 72px;
  letter-spacing: 8px;
  margin-bottom: 24px;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    padding: 18px var(--space);
    gap: 12px;
  }

  .main-nav ul {
    gap: 22px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .site-main {
    padding: 40px var(--space) 64px;
  }

  .hero {
    padding: 64px 0 56px;
  }

  .hero-title {
    letter-spacing: 4px;
  }

  .post-item h2 {
    font-size: 21px;
  }

  .post-header h1 {
    font-size: 25px;
  }

  .post-content {
    font-size: 15.5px;
  }
}

/* 无障碍：尊重减弱动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .post-item {
    opacity: 1;
    transform: none;
  }
}