/*
Theme Name: Qing
Theme URI: https://example.com/qing
Author: Qing Theme
Description: 一个清爽、简洁、响应式的中文 WordPress 博客主题。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.3
Text Domain: qing
*/

:root {
	--qing-bg: #ffffff;
	--qing-surface: #ffffff;
	--qing-text: #1f2924;
	--qing-muted: #718078;
	--qing-primary: #287455;
	--qing-primary-dark: #17523b;
	--qing-border: #dfe7e1;
	--qing-shadow: 0 14px 35px rgba(35, 66, 51, 0.08);
	--qing-radius: 18px;
}

* { box-sizing: border-box; }
html {
	background-color: #ffffff;
	scroll-behavior: smooth;
}
body {
	margin: 0;
	background-color: var(--qing-bg);
	color: var(--qing-text);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
	font-size: 16px;
	line-height: 1.75;
}
a { color: var(--qing-primary); text-decoration: none; }
a:hover { color: var(--qing-primary-dark); }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea { font: inherit; }
.site-container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.narrow-container { width: min(820px, calc(100% - 40px)); }
.screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(1px, 1px, 1px, 1px); }
.screen-reader-text:focus { z-index: 100000; top: 12px; left: 12px; width: auto; height: auto; padding: 10px 16px; clip: auto; background: #fff; }

.site-header { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid rgba(223, 231, 225, .9); background: rgba(255, 255, 255, .92); backdrop-filter: blur(14px); }
.header-inner { display: flex; min-height: 78px; align-items: center; justify-content: space-between; gap: 32px; }
.site-branding { display: flex; align-items: baseline; gap: 12px; }
.site-title { margin: 0; font-size: 25px; font-weight: 750; letter-spacing: -.03em; }
.site-title a { color: var(--qing-text); }
.site-description { margin: 0; color: var(--qing-muted); font-size: 13px; }
.custom-logo { max-height: 52px; width: auto; }
.primary-navigation ul, .footer-navigation ul { display: flex; margin: 0; padding: 0; gap: 28px; list-style: none; }
.primary-navigation a { color: var(--qing-text); font-size: 15px; font-weight: 600; }
.primary-navigation .current-menu-item > a, .primary-navigation a:hover { color: var(--qing-primary); }

.site-main { min-height: 65vh; padding-block: 64px 88px; background-color: #ffffff; }

.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 40px; align-items: start; }
.posts-grid { display: grid; gap: 26px; }
.post-card { display: grid; grid-template-columns: minmax(200px, 34%) 1fr; overflow: hidden; border: 1px solid var(--qing-border); border-radius: var(--qing-radius); background: var(--qing-surface); box-shadow: var(--qing-shadow); }
.post-thumbnail { min-height: 245px; background: #e8eeea; }
.post-thumbnail img { width: 100%; height: 100%; object-fit: cover; }
.post-card-body { padding: 30px 32px; }
.entry-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; color: var(--qing-muted); font-size: 13px; }
.entry-meta .byline::before { margin-right: 18px; content: "·"; }
.entry-title { margin: 10px 0 14px; font-size: clamp(25px, 3vw, 38px); line-height: 1.25; letter-spacing: -.035em; }
.post-card .entry-title { font-size: clamp(22px, 2.5vw, 29px); }
.entry-title a { color: var(--qing-text); }
.entry-summary { color: #59665f; }
.entry-summary p { margin: 0 0 18px; }
.read-more { font-weight: 700; }

.page-header { margin-bottom: 38px; }
.archive-header { padding: 38px 42px; border-radius: var(--qing-radius); background: linear-gradient(135deg, #e4f0e9, #f7faf8); }
.page-title { margin: 0; font-size: clamp(34px, 5vw, 58px); line-height: 1.15; letter-spacing: -.045em; }
.eyebrow { margin: 0 0 8px; color: var(--qing-primary); font-size: 13px; font-weight: 800; letter-spacing: .15em; }
.archive-description { max-width: 680px; color: var(--qing-muted); }

.widget-area { display: grid; gap: 22px; }
.widget { padding: 26px; border: 1px solid var(--qing-border); border-radius: 15px; background: var(--qing-surface); }
.widget-title { margin: 0 0 16px; font-size: 18px; }
.widget ul { margin: 0; padding: 0; list-style: none; }
.widget li { padding-block: 8px; border-bottom: 1px solid var(--qing-border); }
.widget li:last-child { border: 0; }
.search-form { display: flex; gap: 8px; }
.search-field, input[type="text"], input[type="email"], input[type="url"], textarea { width: 100%; border: 1px solid var(--qing-border); border-radius: 9px; padding: 10px 12px; background: #fff; color: var(--qing-text); }
.search-submit, input[type="submit"], .button { border: 0; border-radius: 9px; padding: 10px 18px; background: var(--qing-primary); color: #fff; cursor: pointer; white-space: nowrap; }

.single-entry { padding: clamp(28px, 5vw, 58px); border: 1px solid var(--qing-border); border-radius: var(--qing-radius); background: var(--qing-surface); box-shadow: var(--qing-shadow); }
.single-entry .entry-header { margin-bottom: 32px; }
.single-thumbnail { overflow: hidden; margin: 0 0 38px; border-radius: 13px; }
.entry-content { font-size: 17px; }
.entry-content > * { max-width: 100%; }
.entry-content h2, .entry-content h3 { margin-top: 1.8em; line-height: 1.35; }
.entry-content blockquote { margin-inline: 0; padding: 10px 24px; border-left: 4px solid var(--qing-primary); background: var(--qing-bg); }
.entry-content pre { overflow-x: auto; padding: 20px; border-radius: 10px; background: #17221c; color: #eef5f0; }
.entry-footer { margin-top: 38px; padding-top: 22px; border-top: 1px solid var(--qing-border); }
.tags-links a { display: inline-block; margin: 4px; padding: 3px 10px; border-radius: 99px; background: var(--qing-bg); font-size: 13px; }
.post-navigation { margin: 28px 0; }
.nav-links { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.nav-links > div { padding: 20px; border: 1px solid var(--qing-border); border-radius: 12px; background: var(--qing-surface); }
.nav-next { text-align: right; }
.nav-subtitle { display: block; color: var(--qing-muted); font-size: 12px; }
.nav-title { font-weight: 700; }
.comments-area { margin-top: 30px; padding: 32px; border: 1px solid var(--qing-border); border-radius: var(--qing-radius); background: var(--qing-surface); }
.comment-list { padding-left: 24px; }
.comment-body { padding: 18px 0; border-bottom: 1px solid var(--qing-border); }

.navigation.pagination { margin-top: 36px; }
.page-numbers { display: inline-flex; min-width: 40px; height: 40px; margin-right: 5px; align-items: center; justify-content: center; border-radius: 8px; background: #fff; }
.page-numbers.current { background: var(--qing-primary); color: #fff; }
.error-404 { max-width: 680px; text-align: center; }
.error-code { margin: 0; color: var(--qing-primary); font-size: clamp(90px, 18vw, 180px); font-weight: 850; line-height: 1; opacity: .16; }
.error-404 .search-form { max-width: 520px; margin: 30px auto 20px; }

.site-footer { padding-block: 46px; border-top: 1px solid var(--qing-border); background: #eaf0ec; color: var(--qing-muted); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.footer-title { color: var(--qing-text); font-size: 19px; }
.footer-inner p { margin: 3px 0; font-size: 13px; }
.footer-navigation a { color: var(--qing-text); font-size: 14px; }

@media (max-width: 900px) {
	.content-layout { grid-template-columns: 1fr; }
	.widget-area { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.header-inner { flex-direction: column; padding-block: 18px; align-items: flex-start; gap: 12px; }
	.site-header { position: static; }
	.primary-navigation ul { flex-wrap: wrap; gap: 10px 20px; }
}
@media (max-width: 640px) {
	.site-container, .narrow-container { width: min(100% - 24px, 1180px); }
	.site-main { padding-block: 36px 58px; }
	.post-card { grid-template-columns: 1fr; }
	.post-thumbnail { min-height: 210px; }
	.post-card-body, .archive-header { padding: 24px; }
	.widget-area { grid-template-columns: 1fr; }
	.nav-links { grid-template-columns: 1fr; }
	.nav-next { text-align: left; }
	.footer-inner { flex-direction: column; align-items: flex-start; }
	.footer-navigation ul { flex-wrap: wrap; gap: 10px 20px; }
}