/* ============================================================
   ZXXLX 中小学留学网 · 主样式
   配色：主色 #12518f（教育蓝） · 强调 #f28c28 · 底色 #f5f7fa
   ============================================================ */

:root {
	--primary: #12518f;
	--primary-dark: #0e4273;
	--accent: #f28c28;
	--text: #1d2939;
	--text-2: #475467;
	--text-3: #98a2b3;
	--line: #e4e7ec;
	--bg: #f5f7fa;
	--white: #fff;
	--radius: 12px;
	--shadow: 0 4px 20px rgba(16, 42, 84, 0.07);
	--shadow-lg: 0 10px 34px rgba(16, 42, 84, 0.12);
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
	margin: 0;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
	color: var(--text);
	background: var(--white);
	font-size: 16px;
	line-height: 1.7;
	-webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

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

h1, h2, h3, h4 { line-height: 1.3; color: var(--text); }

h1 { font-size: 30px; margin: 0 0 10px; }
h2 { font-size: 24px; margin: 0 0 8px; }
h3 { font-size: 17px; margin: 0 0 6px; }

p { margin: 0 0 12px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-narrow { max-width: 860px; }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 10px; top: 10px; background: #fff; padding: 8px 14px; z-index: 999; }

/* ---------- 按钮 ---------- */
.btn {
	display: inline-block;
	padding: 10px 22px;
	border-radius: 8px;
	font-size: 15px;
	cursor: pointer;
	border: 1px solid transparent;
	transition: all 0.15s ease;
	line-height: 1.4;
}
.btn-lg { padding: 13px 30px; font-size: 16px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-block { display: block; width: 100%; text-align: center; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: #eef4fb; color: var(--primary-dark); }

/* ---------- 顶部 ---------- */
.site-header {
	background: #fff;
	border-bottom: 1px solid var(--line);
	position: sticky;
	top: 0;
	z-index: 100;
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 68px; }

.brand-text { font-size: 21px; font-weight: 800; color: var(--text); }
.brand-text span { color: var(--primary); }
.brand-text em { display: block; font-style: normal; font-size: 10px; color: var(--text-3); letter-spacing: 0.4px; font-weight: 400; }
.custom-logo { max-height: 52px; width: auto; }

.main-nav { flex: 1; }
.nav-list { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-list > li { position: relative; }
.nav-list a { display: flex; align-items: center; gap: 4px; padding: 8px 12px; color: var(--text); font-size: 15px; border-radius: 6px; }
.nav-list a:hover { background: var(--bg); color: var(--primary); }
.nav-list .sub-menu {
	display: none;
	position: absolute;
	top: 100%;
	left: 0;
	min-width: 150px;
	background: #fff;
	border: 1px solid var(--line);
	border-radius: 10px;
	box-shadow: var(--shadow-lg);
	padding: 6px;
	list-style: none;
	margin: 0;
	z-index: 50;
}
.nav-list > li:hover > .sub-menu { display: block; }
.sub-menu a { padding: 8px 14px; border-radius: 6px; white-space: nowrap; }
.caret { transition: transform 0.15s; }
.nav-list > li:hover .caret { transform: rotate(180deg); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-search input {
	width: 180px;
	padding: 8px 12px;
	border: 1px solid var(--line);
	border-radius: 8px;
	font-size: 13px;
	background: var(--bg);
	transition: width 0.2s;
}
.header-search input:focus { width: 230px; background: #fff; border-color: var(--primary); outline: none; }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
	display: block; width: 22px; height: 2px; background: var(--text); content: ""; position: relative;
}
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after { position: absolute; top: 7px; }

/* ---------- 英雄区 ---------- */
.hero {
	background: linear-gradient(135deg, #0e4273 0%, #12518f 55%, #1d6ab5 100%);
	color: #fff;
	padding: 84px 0;
}
.hero h1 { color: #fff; font-size: 40px; margin-bottom: 16px; }
.hero p { color: rgba(255, 255, 255, 0.85); max-width: 620px; font-size: 17px; }
.hero-actions { display: flex; gap: 14px; margin: 26px 0 34px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 42px; list-style: none; margin: 0; padding: 0; }
.hero-stats strong { display: block; font-size: 26px; color: #ffc57d; }
.hero-stats span { font-size: 13px; color: rgba(255, 255, 255, 0.75); }

/* ---------- 区块 ---------- */
.section { padding: 56px 0; }
.section-alt { background: var(--bg); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 26px; gap: 16px; flex-wrap: wrap; }
.section-head p { color: var(--text-2); margin: 0; }
.more-link { font-size: 14px; white-space: nowrap; }

/* ---------- 国家卡片 ---------- */
.country-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 18px; }
.country-card {
	background: #fff;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	padding: 22px;
	box-shadow: var(--shadow);
	transition: transform 0.15s, box-shadow 0.15s;
	color: var(--text);
}
.country-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); color: var(--text); }
.country-flag { font-size: 30px; }
.country-card h3 { margin: 10px 0 4px; }
.country-card p { color: var(--text-2); font-size: 13.5px; margin: 0; }

/* ---------- 卡片网格 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(265px, 1fr)); gap: 18px; }
.card-grid-3 { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

.card {
	background: #fff;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	overflow: hidden;
	box-shadow: var(--shadow);
	display: flex;
	flex-direction: column;
	color: var(--text);
	transition: transform 0.15s, box-shadow 0.15s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); color: var(--text); }
.card-photo { aspect-ratio: 8/5; overflow: hidden; background: var(--bg); }
.card-photo img { width: 100%; height: 100%; object-fit: cover; }
.card-photo-placeholder { display: flex; align-items: center; justify-content: center; font-size: 44px; }
.card-body { padding: 16px 18px 18px; flex: 1; }
.card-title { margin: 0 0 6px; font-size: 16.5px; }
.card-sub { color: var(--text-3); font-size: 13px; margin: 0 0 8px; }
.card-excerpt { color: var(--text-2); font-size: 14px; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-tuition { color: var(--accent); font-weight: 600; font-size: 14.5px; margin: 10px 0 0; }
.card-meta { display: flex; gap: 10px; align-items: center; font-size: 12.5px; color: var(--text-3); margin-bottom: 8px; }

.badge {
	display: inline-block;
	background: var(--bg);
	border: 1px solid var(--line);
	color: var(--text-2);
	font-size: 12px;
	padding: 2px 9px;
	border-radius: 999px;
	margin: 0 6px 6px 0;
	line-height: 1.6;
}
.badge-country { background: #eef4fb; border-color: #cfe1f3; color: var(--primary); }
.badge-soon { background: #fff4e5; border-color: #ffe0b3; color: #b5651d; }
.badge-row { margin-bottom: 4px; }

/* ---------- 页头 ---------- */
.page-head { background: var(--bg); border-bottom: 1px solid var(--line); padding: 34px 0 26px; margin-bottom: 34px; }
.page-head p { color: var(--text-2); margin: 0; }
.breadcrumbs { font-size: 13px; color: var(--text-3); margin-bottom: 10px; }
.breadcrumbs a { color: var(--text-3); }
.breadcrumbs a:hover { color: var(--primary); }

/* ---------- 学校库筛选布局 ---------- */
.layout-with-aside { display: grid; grid-template-columns: 250px 1fr; gap: 26px; align-items: start; padding-bottom: 56px; }

.filter-panel {
	background: #fff;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	padding: 18px;
	position: sticky;
	top: 88px;
}
.filter-panel h3 { margin: 0 0 12px; font-size: 16px; }
.filter-group { margin-bottom: 12px; }
.filter-group label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 4px; }
.filter-group select, .range-row input {
	width: 100%;
	padding: 8px 10px;
	border: 1px solid var(--line);
	border-radius: 8px;
	font-size: 14px;
	background: #fff;
}
.range-row { display: flex; gap: 8px; align-items: center; }
.range-row span { color: var(--text-3); }
.filter-reset { display: block; text-align: center; font-size: 13px; margin-top: 10px; color: var(--text-3); }
.filter-reset:hover { color: var(--primary); }

.list-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; gap: 14px; flex-wrap: wrap; }
.result-count { color: var(--text-2); font-size: 14px; }
.sort-form { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-2); }
.sort-form select { padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; font-size: 14px; }

.card-grid-list { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

/* ---------- 分页 ---------- */
.pagination, .page-links { margin: 34px 0 10px; text-align: center; }
.nav-links { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.page-numbers {
	display: inline-block;
	padding: 7px 14px;
	border: 1px solid var(--line);
	border-radius: 8px;
	font-size: 14px;
	color: var(--text-2);
	background: #fff;
}
.page-numbers.current { background: var(--primary); border-color: var(--primary); color: #fff; }
a.page-numbers:hover { border-color: var(--primary); color: var(--primary); }

/* ---------- 学校详情 ---------- */
.school-head-main { display: flex; justify-content: space-between; gap: 24px; align-items: flex-end; flex-wrap: wrap; }
.school-en { color: var(--text-3); font-size: 15px; margin: 0 0 10px; }
.school-head-cta { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.school-official { font-size: 13.5px; color: var(--text-2); }

.layout-school { display: grid; grid-template-columns: 1fr 320px; gap: 28px; align-items: start; padding-bottom: 60px; }
.school-photo { border-radius: var(--radius); overflow: hidden; margin-bottom: 26px; }
.school-section { margin-bottom: 30px; }
.school-section h2 { font-size: 20px; padding-left: 12px; border-left: 4px solid var(--primary); margin-bottom: 14px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.data-table th, .data-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table th { color: var(--text-2); width: 130px; font-weight: 500; white-space: nowrap; }
.data-table tr:last-child th, .data-table tr:last-child td { border-bottom: 0; }

.side-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 18px; box-shadow: var(--shadow); }
.side-card h3 { font-size: 16px; margin-bottom: 10px; }
.side-cta p { font-size: 14px; color: var(--text-2); }
.data-table-side th { width: 92px; }
.verified-date { font-size: 12.5px; color: var(--text-3); margin: 8px 0 0; }

/* ---------- 国家频道 ---------- */
.channel-flag { margin-right: 8px; }
.chip-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.chip {
	display: inline-block;
	background: #fff;
	border: 1px solid var(--line);
	border-radius: 999px;
	padding: 5px 15px;
	font-size: 13.5px;
	color: var(--text-2);
}
.chip strong { color: var(--text); margin-right: 6px; }
a.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip-active { background: var(--primary); border-color: var(--primary); color: #fff; }
.channel-body { padding-bottom: 40px; }

/* ---------- 文章 ---------- */
.entry-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; color: var(--text-3); font-size: 13.5px; }
.entry-photo { border-radius: var(--radius); overflow: hidden; margin: 0 0 22px; }
.entry-content { padding-bottom: 56px; }
.entry-content h2 { font-size: 22px; margin: 32px 0 12px; }
.entry-content h3 { font-size: 18px; margin: 26px 0 10px; }
.entry-content ul, .entry-content ol { padding-left: 22px; }
.entry-content table { width: 100%; border-collapse: collapse; margin: 14px 0; }
.entry-content table th, .entry-content table td { border: 1px solid var(--line); padding: 8px 12px; }
.entry-content blockquote { margin: 16px 0; padding: 12px 20px; background: var(--bg); border-left: 4px solid var(--primary); border-radius: 0 8px 8px 0; color: var(--text-2); }

/* ---------- FAQ ---------- */
.faq-item {
	background: #fff;
	border: 1px solid var(--line);
	border-radius: 10px;
	margin-bottom: 10px;
	padding: 0;
	overflow: hidden;
}
.faq-item summary { cursor: pointer; padding: 15px 18px; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 20px; color: var(--primary); font-weight: 400; }
.faq-item[open] summary::after { content: "−"; }
.faq-answer { padding: 0 18px 15px; color: var(--text-2); font-size: 14.5px; }

/* ---------- 顾问 / 工具 ---------- */
.advisor-card { text-align: left; }
.advisor-title { color: var(--primary); font-size: 13.5px; margin: 0 0 8px; }
.advisor-meta { list-style: none; margin: 0 0 10px; padding: 0; font-size: 13.5px; color: var(--text-2); }
.advisor-bio { font-size: 13.5px; color: var(--text-2); margin-bottom: 12px; }
.tool-card { text-align: center; }
.tool-icon { font-size: 34px; margin-bottom: 8px; }
.tool-alt-cta { text-align: center; margin: 40px 0 60px; }

/* ---------- 空状态 / 404 / 提示 ---------- */
.empty-state { background: #fff; border: 1px dashed var(--line); border-radius: var(--radius); text-align: center; padding: 60px 20px; margin-bottom: 56px; }
.empty-state h3 { margin-bottom: 4px; }
.empty-state p { color: var(--text-2); }
.empty-404 { border: 0; padding: 90px 20px; }
.code404 { font-size: 72px; font-weight: 800; color: var(--line); margin: 0; line-height: 1; }
.notice { text-align: center; padding: 30px 20px; background: var(--bg); border-radius: var(--radius); margin-bottom: 50px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #10243d; color: #b6c4d6; margin-top: 40px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 34px; padding: 48px 20px 34px; }
.footer-logo { color: #fff; font-size: 18px; font-weight: 700; margin: 0 0 10px; }
.footer-desc { line-height: 1.8; }
.footer-wechat strong { color: #ffc57d; }
.site-footer h4 { color: #fff; font-size: 15px; margin: 0 0 14px; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { color: #b6c4d6; }
.footer-links a:hover { color: #fff; }
.footer-cta-text { margin-bottom: 14px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 16px 0; font-size: 13px; }
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.footer-bottom a { color: #8fa3bb; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
	.layout-with-aside { grid-template-columns: 1fr; }
	.filter-panel { position: static; }
	.layout-school { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
	.header-inner { flex-wrap: wrap; height: auto; padding: 12px 20px; gap: 10px; }
	.brand { order: 1; }
	.header-actions { order: 2; margin-left: auto; }
	.nav-toggle { display: block; order: 3; }
	.header-search { display: none; }
	.main-nav { order: 4; flex-basis: 100%; display: none; padding-bottom: 12px; }
	.main-nav.is-open { display: block; }
	.nav-list { flex-direction: column; gap: 2px; }
	.nav-list .sub-menu { display: block; position: static; border: 0; box-shadow: none; padding-left: 18px; }
	.hero { padding: 56px 0; }
	.hero h1 { font-size: 30px; }
	.hero-stats { gap: 26px; }
	.footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
	.footer-grid { grid-template-columns: 1fr; }
	h1 { font-size: 25px; }
	.card-grid { grid-template-columns: 1fr; }
}