/*!
 * laixie 素材库前台样式
 * 作用域：body.lm-material-context 下的所有页面
 * 设计：纯 CSS，无框架依赖；移动优先；防 CLS
 */

.lm-material-context {
	--lm-bg: #f7f8fa;
	--lm-card: #fff;
	--lm-line: #e6e8ec;
	--lm-text: #1f2430;
	--lm-muted: #6b7280;
	--lm-accent: #2563eb;
	--lm-accent-2: #7c3aed;
	--lm-soft: #eef2ff;
	--lm-radius: 14px;
	--lm-shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 24px -12px rgba(16, 24, 40, .16);
	background: var(--lm-bg);
}

.lm-material-context .site-content,
.lm-material-context .site-content .content-area { width: 100%; max-width: none; }

.lm-wrap {
	max-width: 1200px;
	margin: 0 auto;
	padding: 24px 20px 64px;
	color: var(--lm-text);
}

/* ---------- hero ---------- */
.lm-hero { background: linear-gradient(135deg, #101828 0%, #1e1b4b 55%, #312e81 100%); color: #fff; border-radius: 0 0 var(--lm-radius) var(--lm-radius); }
.lm-hero__inner { max-width: 1200px; margin: 0 auto; padding: 40px 20px 24px; }
.lm-hero__title { font-size: clamp(24px, 3.4vw, 38px); line-height: 1.2; margin: 0 0 10px; font-weight: 800; letter-spacing: -.01em; }
.lm-hero__sub { margin: 0 0 14px; color: #c7c9d9; font-size: 15px; line-height: 1.7; max-width: 760px; }
.lm-hero__stats { display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 0 0 20px; font-size: 13px; color: #a5a8c0; }
.lm-hero__stats strong { color: #fff; font-size: 15px; }

.lm-search { display: flex; gap: 8px; max-width: 640px; }
.lm-search input[type="search"] {
	flex: 1; min-width: 0; padding: 13px 16px; border-radius: 10px; border: 1px solid rgba(255,255,255,.18);
	background: rgba(255,255,255,.1); color: #fff; font-size: 15px; outline: none;
}
.lm-search input[type="search"]::placeholder { color: #9ca3c4; }
.lm-search input[type="search"]:focus { border-color: var(--lm-accent); background: rgba(255,255,255,.16); }
.lm-search button {
	padding: 13px 22px; border: 0; border-radius: 10px; cursor: pointer; font-size: 15px; font-weight: 600;
	background: var(--lm-accent); color: #fff; white-space: nowrap;
}
.lm-search button:hover { background: #1d4ed8; }

/* ---------- filters ---------- */
.lm-filters {
	display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
	max-width: 1200px; margin: 0 auto; padding: 14px 20px 20px;
}
.lm-filters__types, .lm-filters__sort { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.lm-chip, .lm-sort {
	display: inline-block; padding: 7px 14px; border-radius: 999px; font-size: 13px; text-decoration: none;
	background: rgba(255,255,255,.1); color: #d7d9e8; border: 1px solid rgba(255,255,255,.14); transition: .15s;
}
.lm-chip:hover, .lm-sort:hover { background: rgba(255,255,255,.2); color: #fff; }
.lm-chip.is-active, .lm-sort.is-active { background: #fff; color: #1e1b4b; font-weight: 700; border-color: #fff; }

/* 归档页里 hero 之外的 chip 用浅色 */
.lm-cats .lm-chip, .lm-empty .lm-chip, .lm-tags .lm-tag {
	background: #fff; color: var(--lm-text); border: 1px solid var(--lm-line);
}
.lm-cats .lm-chip:hover, .lm-empty .lm-chip:hover { border-color: var(--lm-accent); color: var(--lm-accent); }

/* ---------- 分类卡 ---------- */
.lm-cats { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin: 0 0 24px; }
.lm-cat-card {
	display: flex; flex-direction: column; gap: 4px; padding: 16px; background: var(--lm-card);
	border: 1px solid var(--lm-line); border-radius: 12px; text-decoration: none; color: var(--lm-text); transition: .15s;
}
.lm-cat-card:hover { border-color: var(--lm-accent); box-shadow: var(--lm-shadow); transform: translateY(-1px); }
.lm-cat-card__name { font-weight: 700; font-size: 15px; }
.lm-cat-card__n { font-size: 12px; color: var(--lm-muted); }

/* ---------- 网格与卡片 ---------- */
.lm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 16px; }
.lm-grid--related { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
.lm-card { background: var(--lm-card); border: 1px solid var(--lm-line); border-radius: var(--lm-radius); overflow: hidden; transition: .18s; }
.lm-card:hover { box-shadow: var(--lm-shadow); transform: translateY(-2px); border-color: #d3d7e0; }
.lm-card__link { display: block; color: inherit; text-decoration: none; }
.lm-card__media {
	position: relative; aspect-ratio: 4 / 3; background:
		linear-gradient(45deg, #f1f3f6 25%, transparent 25%, transparent 75%, #f1f3f6 75%) 0 0 / 20px 20px,
		linear-gradient(45deg, #f1f3f6 25%, #fff 25%, #fff 75%, #f1f3f6 75%) 10px 10px / 20px 20px;
	display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.lm-card__media img { width: 100%; height: 100%; object-fit: contain; display: block; }
.lm-card__ph { font-size: 40px; color: #b9c0cc; font-weight: 800; }
.lm-card__type {
	position: absolute; left: 8px; top: 8px; padding: 3px 9px; border-radius: 999px;
	background: rgba(17,24,39,.78); color: #fff; font-size: 11px; backdrop-filter: blur(4px);
}
.lm-card__play {
	position: absolute; right: 10px; bottom: 10px; width: 34px; height: 34px; border-radius: 50%;
	background: var(--lm-accent); color: #fff; display: flex; align-items: center; justify-content: center;
	font-size: 13px; box-shadow: 0 2px 8px rgba(37,99,235,.4);
}
.lm-card__body { padding: 12px 13px 14px; }
.lm-card__title { font-size: 14px; line-height: 1.45; margin: 0 0 8px; font-weight: 600; min-height: 2.9em;
	display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.lm-card__meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.lm-badges { display: flex; gap: 4px; flex-wrap: wrap; }
.lm-badge {
	display: inline-block; padding: 2px 7px; font-size: 11px; border-radius: 5px;
	background: var(--lm-soft); color: #4338ca; font-weight: 600; letter-spacing: .02em;
}
.lm-badge--license { background: #ecfdf5; color: #047857; text-decoration: none; }
.lm-badge--type { background: #fef3c7; color: #92400e; }
.lm-card__dl { font-size: 12px; color: var(--lm-muted); white-space: nowrap; }

/* ---------- AI 徽标 ---------- */
.lm-ai-badge {
	display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 999px;
	font-size: 12px; font-weight: 700; background: linear-gradient(135deg, #eef2ff, #f5f3ff);
	color: #4338ca; border: 1px solid #c7d2fe;
}

/* ---------- 详情页 ---------- */
.lm-single__top { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .85fr); gap: 32px; align-items: start; margin: 12px 0 36px; }
@media (max-width: 880px) { .lm-single__top { grid-template-columns: 1fr; gap: 20px; } }

.lm-preview {
	position: relative; border-radius: var(--lm-radius); overflow: hidden; border: 1px solid var(--lm-line);
	background:
		linear-gradient(45deg, #eef0f4 25%, transparent 25%, transparent 75%, #eef0f4 75%) 0 0 / 24px 24px,
		linear-gradient(45deg, #eef0f4 25%, #fff 25%, #fff 75%, #eef0f4 75%) 12px 12px / 24px 24px;
	min-height: 260px; display: flex; align-items: center; justify-content: center;
}
.lm-preview__img { max-width: 100%; height: auto; display: block; }
.lm-preview__img--svg { width: 60%; max-width: 340px; }
.lm-preview__ph { color: #9aa1ae; font-size: 15px; }
.lm-preview--audio { flex-direction: column; gap: 18px; padding: 36px 24px; background: #0f172a; }
.lm-audio { width: 100%; }
.lm-audio__wave { display: flex; align-items: center; justify-content: center; gap: 3px; height: 90px; }
.lm-audio__wave i { display: block; width: 3px; border-radius: 2px; background: linear-gradient(180deg, #60a5fa, #a78bfa); opacity: .9; }
.lm-audio__dur { display: block; text-align: center; color: #94a3b8; font-size: 13px; margin-top: 6px; font-variant-numeric: tabular-nums; }
.lm-audio__player { width: 100%; margin-top: 8px; }

.lm-info__title { font-size: clamp(20px, 2.6vw, 28px); line-height: 1.3; margin: 0 0 12px; font-weight: 800; }
.lm-info__flags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; align-items: center; }

.lm-spec { margin: 0 0 20px; display: grid; gap: 1px; background: var(--lm-line); border: 1px solid var(--lm-line); border-radius: 10px; overflow: hidden; }
.lm-spec > div { display: grid; grid-template-columns: 92px 1fr; gap: 10px; background: #fff; padding: 10px 13px; align-items: center; }
.lm-spec dt { font-size: 13px; color: var(--lm-muted); margin: 0; }
.lm-spec dd { margin: 0; font-size: 14px; }
.lm-spec .lm-badge { margin-right: 4px; }

.lm-cta { padding: 18px; border: 1px solid var(--lm-line); border-radius: 12px; background: linear-gradient(180deg, #fff, #fafbff); }
.lm-btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 13px 20px;
	border-radius: 10px; font-size: 15px; font-weight: 700; text-decoration: none; cursor: pointer;
	border: 1px solid transparent; transition: .15s; line-height: 1;
}
.lm-btn--primary { display: flex; width: 100%; background: var(--lm-accent); color: #fff; font-size: 16px; box-shadow: 0 4px 14px -4px rgba(37,99,235,.5); }
.lm-btn--primary:hover { background: #1d4ed8; color: #fff; }
.lm-cta__formats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.lm-btn--ghost { flex: 1 1 auto; background: #fff; border-color: var(--lm-line); color: var(--lm-text); font-size: 13px; padding: 10px 14px; }
.lm-btn--ghost:hover { border-color: var(--lm-accent); color: var(--lm-accent); }
.lm-btn--ghost small { color: var(--lm-muted); font-weight: 500; }
.lm-cta__note { margin: 12px 0 0; font-size: 12px; color: var(--lm-muted); text-align: center; }

.lm-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.lm-tag { font-size: 12px; color: var(--lm-muted); text-decoration: none; padding: 3px 8px; border-radius: 6px; background: #f1f3f7; }
.lm-tag:hover { color: var(--lm-accent); background: var(--lm-soft); }
.lm-tag sup { font-size: 9px; margin-left: 2px; color: #9aa1ae; }

.lm-section { margin: 32px 0; padding-top: 8px; border-top: 1px solid var(--lm-line); }
.lm-section h2 { font-size: 19px; margin: 0 0 12px; font-weight: 700; }
.lm-section--ai { background: linear-gradient(180deg, #f8f9ff, #fff); border: 1px solid #e0e5ff; border-radius: 12px; padding: 20px; }
.lm-ai-list { margin: 0; padding-left: 20px; line-height: 1.85; font-size: 14px; }
.lm-ai-list code { background: #eef2ff; padding: 1px 6px; border-radius: 4px; font-size: 12.5px; }
.lm-section--report { background: #fffbeb; border: 1px solid #fde68a; border-radius: 10px; padding: 16px 18px; }

/* ---------- 面包屑 / 分页 / 空态 ---------- */
.lm-crumbs { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 13px; color: var(--lm-muted); margin: 4px 0 18px; }
.lm-crumbs a { color: var(--lm-muted); text-decoration: none; }
.lm-crumbs a:hover { color: var(--lm-accent); }
.lm-crumbs__cur { color: var(--lm-text); }

.lm-pagination { margin: 32px 0 0; display: flex; justify-content: center; }
.lm-pagination ul { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; justify-content: center; }
.lm-pagination .page-numbers {
	display: inline-flex; align-items: center; justify-content: center; min-width: 38px; height: 38px; padding: 0 10px;
	border-radius: 9px; background: #fff; border: 1px solid var(--lm-line); color: var(--lm-text); text-decoration: none; font-size: 13px;
}
.lm-pagination .page-numbers.current { background: var(--lm-accent); border-color: var(--lm-accent); color: #fff; font-weight: 700; }
.lm-pagination a.page-numbers:hover { border-color: var(--lm-accent); color: var(--lm-accent); }

.lm-empty { text-align: center; padding: 64px 20px; color: var(--lm-muted); }
.lm-empty__big { font-size: 44px; margin: 0 0 8px; }
.lm-empty__hint { font-size: 14px; }
.lm-empty__cats { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 18px; }

/* ---------- SEO 文案块 ---------- */
.lm-seo-block { margin-top: 48px; padding: 24px; background: #fff; border: 1px solid var(--lm-line); border-radius: 12px; }
.lm-seo-block h2 { font-size: 18px; margin: 0 0 12px; }
.lm-seo-block p { font-size: 14px; line-height: 1.9; color: #374151; margin: 0 0 12px; }
.lm-seo-block a { color: var(--lm-accent); }

/* ---------- 静态页 ---------- */
.lm-page { max-width: 840px; }
.lm-page h1 { font-size: clamp(24px, 3vw, 32px); margin: 0 0 8px; font-weight: 800; }
.lm-page__meta { color: var(--lm-muted); font-size: 13px; margin: 0 0 24px; }
.lm-prose { background: #fff; border: 1px solid var(--lm-line); border-radius: 12px; padding: 28px 30px; font-size: 15px; line-height: 1.95; color: #374151; }
.lm-prose h2 { font-size: 18px; margin: 28px 0 10px; color: var(--lm-text); font-weight: 700; }
.lm-prose h2:first-child { margin-top: 0; }
.lm-prose ul, .lm-prose ol { padding-left: 22px; }
.lm-prose li { margin: 6px 0; }
.lm-prose a { color: var(--lm-accent); }
.lm-prose code { background: #f1f3f7; padding: 1px 6px; border-radius: 4px; font-size: 13px; }
.lm-table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.lm-table th, .lm-table td { border: 1px solid var(--lm-line); padding: 9px 12px; text-align: left; }
.lm-table th { background: #f8f9fc; font-weight: 700; }

/* ---------- 表单 ---------- */
.lm-form { background: #fff; border: 1px solid var(--lm-line); border-radius: 12px; padding: 24px; display: grid; gap: 8px; }
.lm-form label { font-size: 13.5px; font-weight: 600; margin-top: 8px; color: var(--lm-text); }
.lm-form label small { font-weight: 400; color: var(--lm-muted); }
.lm-form input[type="url"], .lm-form input[type="email"], .lm-form select, .lm-form textarea {
	width: 100%; padding: 11px 13px; border: 1px solid var(--lm-line); border-radius: 9px; font-size: 14px;
	font-family: inherit; background: #fbfcfe; color: var(--lm-text); box-sizing: border-box;
}
.lm-form input:focus, .lm-form select:focus, .lm-form textarea:focus { outline: none; border-color: var(--lm-accent); background: #fff; box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.lm-check { display: flex; gap: 8px; align-items: flex-start; font-weight: 400 !important; font-size: 13px !important; margin-top: 12px; }
.lm-check input { margin-top: 3px; }
.lm-form .lm-btn { margin-top: 16px; justify-self: start; }
.lm-notice { padding: 14px 18px; border-radius: 10px; margin: 0 0 20px; font-size: 14px; }
.lm-notice--ok { background: #ecfdf5; border: 1px solid #a7f3d0; color: #065f46; }
.lm-notice--err { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }

/* ---------- 通用 ---------- */
.screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.lm-material-context .entry-header, .lm-material-context .page-header { display: none; }

@media (max-width: 640px) {
	.lm-wrap { padding: 16px 14px 48px; }
	.lm-hero__inner { padding: 28px 14px 18px; }
	.lm-filters { padding: 12px 14px 16px; }
	.lm-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
	.lm-search { flex-direction: column; }
	.lm-prose { padding: 20px 16px; }
	.lm-spec > div { grid-template-columns: 76px 1fr; }
}