/*
Theme Name: Qing
Theme URI: https://example.com/qing
Author: Qing Theme
Description: 清爽、响应式的经典 WordPress 博客主题。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.6
Requires PHP: 7.4
Text Domain: qing
*/

:root {
	--qing-accent: #168c80;
	--qing-accent-dark: #0d6f66;
	--qing-bg: #ffffff;
	--qing-surface: #fff;
	--qing-text: #1d2927;
	--qing-muted: #6b7775;
	--qing-border: #dce6e3;
	--qing-radius: 16px;
	--qing-shadow: 0 10px 30px rgba(24, 64, 58, 0.08);
	--qing-width: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
	margin: 0;
	background: var(--qing-bg);
	color: var(--qing-text);
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
	font-size: 16px;
	line-height: 1.75;
}
a { color: #dbaf56; text-decoration: none; transition: color .2s ease; }
a:hover, a:focus { color: #c69a3f; }
img { max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
.container { width: min(calc(100% - 40px), var(--qing-width)); margin-inline: auto; }
.screen-reader-text {
	position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
	overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.screen-reader-text:focus {
	top: 8px; left: 8px; z-index: 100000; width: auto; height: auto; padding: 10px 16px;
	clip: auto !important; background: #fff; color: #111; border-radius: 6px;
}

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--qing-border); backdrop-filter: blur(12px); }
.admin-bar .site-header { top: 32px; }
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.site-branding { display: flex; align-items: center; min-width: 0; }
.custom-logo-link { display: flex; align-items: center; }
.custom-logo { max-height: 50px; width: auto; }
.site-title { margin: 0; font-size: 1.65rem; line-height: 1.2; font-weight: 800; letter-spacing: -.03em; }
.site-title a { color: var(--qing-text); }
.site-description { margin: 2px 0 0; color: var(--qing-muted); font-size: .8rem; }
.brand-text { min-width: 0; }
.main-navigation ul { display: flex; align-items: center; gap: 6px; margin: 0; padding: 0; list-style: none; }
.main-navigation li { position: relative; }
.main-navigation a { display: block; padding: 9px 13px; color: var(--qing-text); font-weight: 600; border-radius: 9px; }
.main-navigation a:hover, .main-navigation .current-menu-item > a { background: #e8f5f2; color: var(--qing-accent-dark); }
.main-navigation .sub-menu { position: absolute; top: 100%; left: 0; display: none; min-width: 190px; padding: 8px; background: #fff; border: 1px solid var(--qing-border); border-radius: 10px; box-shadow: var(--qing-shadow); }
.main-navigation li:hover > .sub-menu, .main-navigation li:focus-within > .sub-menu { display: block; }
.menu-toggle { display: none; padding: 8px 12px; color: var(--qing-text); background: transparent; border: 1px solid var(--qing-border); border-radius: 8px; cursor: pointer; }

.site-content { padding-block: 48px 72px; min-height: 65vh; }
.hero { margin-bottom: 42px; padding: clamp(36px, 7vw, 80px); overflow: hidden; color: #fff; background: linear-gradient(135deg, #0e7168, #27a292); border-radius: 24px; box-shadow: var(--qing-shadow); }
.hero-kicker { margin: 0 0 8px; font-weight: 700; opacity: .85; }
.hero-title { max-width: 780px; margin: 0; font-size: clamp(2.2rem, 6vw, 4.6rem); line-height: 1.08; letter-spacing: -.045em; }
.hero-description { max-width: 680px; margin: 20px 0 0; font-size: 1.1rem; opacity: .9; }
.page-header { margin-bottom: 30px; }
.page-title { margin: 0; font-size: clamp(2rem, 4vw, 3.1rem); line-height: 1.2; letter-spacing: -.035em; }
.archive-description { max-width: 760px; margin-top: 8px; color: var(--qing-muted); }
.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 36px; align-items: start; }
.no-sidebar .content-layout { grid-template-columns: 1fr; }
.posts-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; }

.post-card, .single-entry, .page-entry, .widget, .comments-area, .not-found-box {
	background: var(--qing-surface); border: 1px solid var(--qing-border); border-radius: var(--qing-radius); box-shadow: var(--qing-shadow);
}
.post-card { overflow: hidden; }
.card-thumbnail { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: #e6eeec; }
.card-thumbnail img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.post-card:hover .card-thumbnail img { transform: scale(1.035); }
.card-content { padding: 24px; }
.entry-categories { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 9px; }
.entry-categories a { padding: 3px 9px; color: var(--qing-accent-dark); background: #e8f5f2; border-radius: 999px; font-size: .76rem; font-weight: 700; }
.entry-title { overflow-wrap: break-word; }
.post-card .entry-title { margin: 0 0 10px; font-size: 1.35rem; line-height: 1.35; }
.post-card .entry-title a { color: var(--qing-text); }
.entry-meta { display: flex; flex-wrap: wrap; gap: 7px 14px; color: var(--qing-muted); font-size: .84rem; }
.entry-summary { margin-top: 14px; color: #4d5957; }
.entry-summary p:last-child { margin-bottom: 0; }
.read-more { display: inline-block; margin-top: 14px; font-weight: 700; }

.single-entry, .page-entry { padding: clamp(24px, 5vw, 56px); }
.single-entry .entry-header, .page-entry .entry-header { margin-bottom: 30px; }
.single-entry .entry-title, .page-entry .entry-title { margin: 8px 0 14px; font-size: clamp(2.05rem, 5vw, 3.65rem); line-height: 1.16; letter-spacing: -.04em; }
.entry-thumbnail { margin: 0 0 34px; overflow: hidden; border-radius: 13px; }
.entry-thumbnail img { display: block; width: 100%; }
.entry-content { font-size: 1.05rem; overflow-wrap: break-word; }
.entry-content > *:first-child { margin-top: 0; }
.entry-content h2, .entry-content h3 { margin-top: 1.6em; line-height: 1.35; }
.entry-content blockquote { margin: 1.5em 0; padding: 4px 0 4px 22px; color: #40504d; border-left: 4px solid var(--qing-accent); }
.entry-content pre { padding: 20px; overflow-x: auto; background: #172321; color: #eaf4f2; border-radius: 10px; }
.entry-content table { width: 100%; border-collapse: collapse; }
.entry-content th, .entry-content td { padding: 10px; border: 1px solid var(--qing-border); }
.entry-footer { margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--qing-border); }
.tags-links a { display: inline-block; margin: 4px; padding: 4px 10px; background: var(--qing-bg); border-radius: 999px; font-size: .85rem; }
.author-box { display: flex; gap: 16px; margin-top: 28px; padding: 20px; background: var(--qing-bg); border-radius: 12px; }
.author-box img { flex: 0 0 auto; border-radius: 50%; }
.author-box h2 { margin: 0 0 5px; font-size: 1rem; }
.author-box p { margin: 0; color: var(--qing-muted); }
.post-navigation { margin-top: 24px; }
.post-navigation .nav-links { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.post-navigation a { display: block; padding: 18px; background: #fff; border: 1px solid var(--qing-border); border-radius: 12px; }
.nav-next { text-align: right; }

.widget-area { display: grid; gap: 22px; }
.widget { padding: 23px; }
.widget-title { margin: 0 0 16px; font-size: 1.1rem; }
.widget ul { margin: 0; padding: 0; list-style: none; }
.widget li { padding: 7px 0; border-bottom: 1px solid #edf2f1; }
.widget li:last-child { border-bottom: 0; }
.search-form { display: flex; gap: 8px; }
.search-field { min-width: 0; width: 100%; padding: 10px 12px; background: #fff; border: 1px solid #cfdad7; border-radius: 8px; }
.search-submit, .submit, button[type="submit"] { padding: 10px 16px; color: #fff; background: var(--qing-accent-dark); border: 0; border-radius: 8px; cursor: pointer; }

.pagination { grid-column: 1 / -1; margin-top: 12px; }
.nav-links { display: flex; flex-wrap: wrap; gap: 8px; }
.page-numbers { display: inline-grid; min-width: 42px; min-height: 42px; padding: 6px; place-items: center; background: #fff; border: 1px solid var(--qing-border); border-radius: 9px; }
.page-numbers.current { color: #fff; background: var(--qing-accent); border-color: var(--qing-accent); }
.comments-area { margin-top: 28px; padding: clamp(22px, 4vw, 40px); }
.comments-title, .comment-reply-title { margin-top: 0; }
.comment-list { padding-left: 0; list-style: none; }
.comment-list .children { list-style: none; }
.comment-body { margin: 20px 0; padding-bottom: 20px; border-bottom: 1px solid var(--qing-border); }
.comment-meta { font-size: .88rem; }
.comment-author img { margin-right: 8px; border-radius: 50%; vertical-align: middle; }
.comment-form label { display: block; font-weight: 600; }
.comment-form input:not([type="checkbox"]), .comment-form textarea { width: 100%; padding: 10px 12px; border: 1px solid #cfdad7; border-radius: 8px; }
.not-found-box { padding: clamp(28px, 5vw, 54px); text-align: center; }
.error-code { margin: 0; color: var(--qing-accent); font-size: clamp(5rem, 15vw, 10rem); font-weight: 800; line-height: 1; }

.site-footer { color: #dcebe8; background: #142623; }
.footer-widgets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; padding-block: 48px; }
.site-footer .widget { padding: 0; background: transparent; border: 0; box-shadow: none; }
.site-footer a { color: #dcebe8; }
.site-info { padding-block: 22px; border-top: 1px solid rgba(255,255,255,.12); color: #aabfbb; font-size: .9rem; }
.footer-navigation ul { display: flex; flex-wrap: wrap; gap: 16px; margin: 8px 0 0; padding: 0; list-style: none; }

.alignwide { width: calc(100% + 80px); max-width: calc(100% + 80px); margin-left: -40px; }
.alignfull { width: 100vw; max-width: 100vw; margin-left: calc(50% - 50vw); }
.alignleft { float: left; margin: 0 1.5em 1em 0; }
.alignright { float: right; margin: 0 0 1em 1.5em; }
.aligncenter { display: block; margin-right: auto; margin-left: auto; }
.wp-caption, .gallery-caption { max-width: 100%; color: var(--qing-muted); font-size: .85rem; }
.sticky { border-top: 4px solid var(--qing-accent); }
.bypostauthor { outline: 0; }

@media (max-width: 900px) {
	.content-layout { grid-template-columns: 1fr; }
	.widget-area { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.menu-toggle { display: block; }
	.main-navigation { position: absolute; top: 100%; right: 20px; left: 20px; display: none; padding: 12px; background: #fff; border: 1px solid var(--qing-border); border-radius: 12px; box-shadow: var(--qing-shadow); }
	.main-navigation.toggled { display: block; }
	.main-navigation ul { display: block; }
	.main-navigation .sub-menu { position: static; display: block; margin-left: 16px; padding: 0; border: 0; box-shadow: none; }
}
@media (max-width: 640px) {
	.admin-bar .site-header { top: 46px; }
	.container { width: min(calc(100% - 24px), var(--qing-width)); }
	.site-content { padding-block: 26px 52px; }
	.posts-grid, .footer-widgets, .widget-area { grid-template-columns: 1fr; }
	.hero { border-radius: 16px; }
	.post-navigation .nav-links { grid-template-columns: 1fr; }
	.nav-next { text-align: left; }
	.alignwide { width: 100%; max-width: 100%; margin-left: 0; }
	.site-description { display: none; }
}