/* ============ 大连皓麟精密模具 新站样式（响应式，无外部依赖） ============ */
:root {
    --primary: #0d5da6;
    --primary-dark: #0a4a85;
    --accent: #f39c12;
    --text: #3a3a3a;
    --muted: #777;
    --border: #e5e5e5;
    --bg-alt: #f5f8fb;
    --max: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
    font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Tahoma, sans-serif;
    color: var(--text);
    font-size: 15px;
    line-height: 1.8;
    background: #fff;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ---------- 头部 ---------- */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: #fff; border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(0,0,0,.04);
}
.header-inner { display: flex; align-items: center; gap: 24px; padding: 10px 20px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark { height: 46px; width: auto; }
.logo-text { display: flex; flex-direction: column; justify-content: center; line-height: 1.25; }
.logo-text strong { font-size: 17px; color: #16283c; white-space: nowrap; letter-spacing: 1px; }
.logo-text small { font-size: 10px; color: #8a97a5; white-space: nowrap; letter-spacing: .3px; }
.main-nav { display: flex; gap: 4px; flex: 1; }
.main-nav a {
    padding: 8px 14px; font-size: 16px; font-weight: 600; color: var(--text);
    border-radius: 4px; white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active { color: var(--primary); background: var(--bg-alt); }
.header-tools { display: flex; align-items: center; gap: 12px; }
.search-form { display: flex; }
.search-form input {
    width: 140px; padding: 6px 10px; border: 1px solid var(--border);
    border-right: none; border-radius: 4px 0 0 4px; outline: none; font-size: 13px;
}
.search-form button {
    padding: 6px 12px; border: none; background: var(--primary); color: #fff;
    border-radius: 0 4px 4px 0; cursor: pointer; font-size: 13px;
}
.search-form button:hover { background: var(--primary-dark); }
.lang-switch { display: flex; gap: 6px; font-size: 13px; }
.lang-switch a { padding: 2px 6px; border-radius: 3px; color: var(--muted); font-weight: 600; white-space: nowrap; }
.lang-switch a.active { background: var(--primary); color: #fff; }
.lang-switch .lang-short { display: none; }
.nav-toggle { display: none; border: 1px solid var(--border); background: #fff; font-size: 20px; padding: 4px 10px; border-radius: 4px; cursor: pointer; }

/* ---------- 首页幻灯 ---------- */
.hero { position: relative; aspect-ratio: 1920 / 490; overflow: hidden; }
.hero-slide {
    position: absolute; inset: 0; background-size: cover; background-position: center;
    opacity: 0; transition: opacity 1.2s ease;
}.hero-slide.active { opacity: 1; }
.hero-overlay {
    position: absolute; inset: 0; z-index: 1; display: flex; align-items: center;
    background: linear-gradient(90deg, rgba(0,20,45,.55), rgba(0,20,45,.10));
}
.hero-overlay .container { width: 100%; }
.hero-overlay h2 { color: #fff; font-size: 64px; letter-spacing: 8px; line-height: 1.35; text-shadow: 0 3px 14px rgba(0,0,0,.6); }
.hero-slogan h2 .indent { display: inline-block; padding-left: 2em; }
.hero-slogan .slogan-zh { color: #fff; font-size: 30px; font-weight: 600; letter-spacing: 6px; margin-top: 20px; text-shadow: 0 2px 10px rgba(0,0,0,.6); }
.hero-slogan .slogan-en { color: #d7e2ee; font-size: 30px; font-style: italic; line-height: 1.7; margin-top: 14px; text-shadow: 0 1px 4px rgba(0,0,0,.5); }
.hero-overlay p { color: #e8eef5; font-size: 18px; margin-top: 12px; }

/* ---------- 通用区块 ---------- */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }
.section-title {
    font-size: 28px; color: var(--primary-dark); margin-bottom: 24px;
    padding-left: 14px; border-left: 4px solid var(--accent);
}
.section-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 24px; }
.section-head .section-title { margin-bottom: 0; }
.section-head .more { font-size: 14px; }
.two-col { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.section-img img { border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.1); }
.rich-text { color: var(--text); }
.rich-text h3 { color: var(--primary-dark); margin-bottom: 12px; font-size: 20px; }
.rich-text p { margin-bottom: 12px; }

.btn {
    display: inline-block; padding: 10px 26px; background: var(--primary); color: #fff;
    border-radius: 4px; border: 1px solid var(--primary); cursor: pointer; font-size: 15px;
}
.btn:hover { background: var(--primary-dark); color: #fff; }
.btn-outline { background: #fff; color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-light { background: #fff; color: var(--primary); border-color: #fff; }

/* ---------- 卡片网格（产品） ---------- */
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card {
    background: #fff; border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
    transition: transform .25s, box-shadow .25s; color: var(--text); display: block;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(13,93,166,.15); color: var(--text); }
.card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.card-body { padding: 16px; }
.card-body h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 6px; }
.card-body p { font-size: 13px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- 新闻列表 ---------- */
.news-list li {
    display: flex; justify-content: space-between; align-items: baseline; gap: 16px;
    padding: 14px 4px; border-bottom: 1px dashed var(--border);
}
.news-list li a { color: var(--text); flex: 1; }
.news-list li a:hover { color: var(--primary); }
.news-list .date { color: var(--muted); font-size: 13px; white-space: nowrap; }
.search-results li { flex-wrap: wrap; }
.search-summary { width: 100%; font-size: 13px; color: var(--muted); }

/* ---------- CTA ---------- */
.cta { background: var(--primary-dark); color: #fff; padding: 56px 0; text-align: center; }
.cta h2 { font-size: 28px; margin-bottom: 10px; }
.cta p { margin-bottom: 20px; opacity: .9; }

/* ---------- 内页 ---------- */
.page-banner {
    background: linear-gradient(120deg, var(--primary-dark), var(--primary));
    color: #fff; padding: 48px 0;
}
.page-banner h1 { font-size: 30px; letter-spacing: 1px; }
.page-body { padding: 48px 20px 72px; max-width: var(--max); margin: 0 auto; }

.about-gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px; }
.about-gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,.08); }

/* ---------- 详情 ---------- */
.detail-title { font-size: 26px; color: var(--primary-dark); text-align: center; margin-bottom: 12px; }
.detail-meta { text-align: center; color: var(--muted); font-size: 13px; padding-bottom: 20px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.detail-pic { margin: 0 auto 24px; max-height: 480px; border-radius: 8px; }
.detail-product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 24px; align-items: start; }
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
.spec-table th, .spec-table td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; font-size: 14px; }
.spec-table th { background: var(--bg-alt); width: 35%; font-weight: 600; color: var(--primary-dark); }
.detail-summary { color: var(--muted); }
.media-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.media-grid figure { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.media-grid figcaption { padding: 6px 10px; font-size: 12px; color: var(--muted); }
.related { background: var(--bg-alt); border-radius: 8px; padding: 20px 24px; margin: 28px 0; }
.related h3 { color: var(--primary-dark); margin-bottom: 10px; font-size: 17px; }
.related li { padding: 4px 0; }
.prev-next { margin: 20px 0; color: var(--muted); font-size: 14px; }
.prev-next li { padding: 4px 0; }

/* ---------- 单页 / 联系 ---------- */
.single-page { max-width: 900px; }
.contact-info {
    background: var(--bg-alt); border-radius: 8px; padding: 20px 24px; margin: 24px 0;
}
.feedback-form { max-width: 720px; }
.feedback-form label { display: block; margin-bottom: 14px; font-weight: 600; color: var(--primary-dark); }
.feedback-form input, .feedback-form textarea {
    display: block; width: 100%; margin-top: 6px; padding: 10px 12px;
    border: 1px solid var(--border); border-radius: 4px; font-size: 14px; font-weight: 400;
}
.feedback-form input:focus, .feedback-form textarea:focus { outline: 2px solid rgba(13,93,166,.25); border-color: var(--primary); }
.form-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; }
.alert-ok {
    background: #e8f6ec; border: 1px solid #b7e4c3; color: #1e7b3c;
    padding: 12px 18px; border-radius: 6px; margin-bottom: 20px;
}

/* ---------- 搜索页 / 分页 / 空 ---------- */
.search-page-form { display: flex; gap: 0; margin-bottom: 24px; max-width: 560px; }
.search-page-form input {
    flex: 1; padding: 10px 14px; border: 1px solid var(--border);
    border-radius: 4px 0 0 4px; border-right: none; outline: none;
}
.search-page-form .btn { border-radius: 0 4px 4px 0; }
.search-total { color: var(--muted); margin-bottom: 16px; }
.empty { color: var(--muted); padding: 40px 0; text-align: center; }
.pager { display: flex; gap: 8px; justify-content: center; margin-top: 32px; }
.pager a {
    min-width: 36px; text-align: center; padding: 6px 10px;
    border: 1px solid var(--border); border-radius: 4px; color: var(--text);
}
.pager a.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.error-page { text-align: center; padding-top: 80px; padding-bottom: 120px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #16324f; color: #c8d6e5; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding: 48px 20px; }
.site-footer h4 { color: #fff; margin-bottom: 14px; font-size: 16px; }
.site-footer p { font-size: 13px; margin-bottom: 8px; }
.site-footer a { color: #c8d6e5; }
.site-footer a:hover { color: #fff; }
.copyright { border-top: 1px solid rgba(255,255,255,.12); padding: 16px 0; font-size: 13px; color: #8ba3bc; }

/* ---------- 响应式 ---------- */
/* 大屏加宽容器：2K/4K 显示器上内容不再缩成一团 */
@media (min-width: 1600px) {
    :root { --max: 1440px; }
    .header-inner { padding: 14px 20px; }
    .logo-mark { height: 56px; }
    .logo-text strong { font-size: 20px; }
    .logo-text small { font-size: 11px; }
    .main-nav a { font-size: 17px; padding: 10px 16px; }
    .search-form input { width: 170px; font-size: 14px; }
    .search-form button { font-size: 14px; padding: 8px 14px; }
    .lang-switch { font-size: 14px; }
}
@media (min-width: 2100px) {
    :root { --max: 1680px; }
    .header-inner { padding: 16px 20px; }
    .logo-mark { height: 62px; }
    .logo-text strong { font-size: 22px; }
    .logo-text small { font-size: 12px; }
    .main-nav a { font-size: 18px; padding: 10px 18px; }
    .search-form input { width: 200px; }
}
@media (max-width: 960px) {
    .card-grid, .media-grid { grid-template-columns: repeat(2, 1fr); }
    .two-col { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .hero { height: 320px; }
    .hero-overlay h2 { font-size: 36px; letter-spacing: 4px; }
    .hero-slogan .slogan-zh { font-size: 20px; letter-spacing: 3px; }
    .hero-slogan .slogan-en { font-size: 20px; }
    .detail-product-grid { grid-template-columns: 1fr; }
    .carousel-item { flex-basis: calc(50% - 12px); }
}
@media (max-width: 720px) {
    .header-inner { flex-wrap: wrap; }
    .logo-text { display: none; }
    .nav-toggle { display: block; }
    .main-nav { display: none; width: 100%; flex-direction: column; padding-bottom: 10px; }
    .main-nav.open { display: flex; }
    /* 手机端：语言切换显示短标签（中/EN/日），保证头部一行放得下 */
    .lang-switch { font-size: 14px; gap: 4px; }
    .lang-switch .lang-full { display: none; }
    .lang-switch .lang-short { display: inline; }
    .lang-switch a { padding: 4px 8px; }
    .card-grid, .media-grid { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .section { padding: 40px 0; }
    .hero { height: 240px; }
}
@media (max-width: 480px) {
    .card-grid, .media-grid { grid-template-columns: 1fr; }
}

/* ---------- 首页栏目卡片轮播 ---------- */
.carousel { overflow: hidden; }
.carousel-track { display: flex; gap: 24px; transition: transform .6s ease; }
.carousel-item { flex: 0 0 calc(25% - 18px); }
.carousel + .carousel { margin-top: 24px; }

/* ---------- 首页“联系我们”区块（左文右图） ---------- */
.cta-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; text-align: left; }
.cta-grid-full { grid-template-columns: 1fr; text-align: center; }
.cta-text h2 { text-align: inherit; }
.cta-img { text-align: center; }
.cta-img img { width: 50%; border-radius: 8px; display: block; object-fit: cover; aspect-ratio: 16/9; box-shadow: 0 8px 24px rgba(0,0,0,.25); margin: 0 auto; }
@media (max-width: 960px) {
    .cta-grid { grid-template-columns: 1fr; text-align: center; gap: 24px; }
    .cta-img img { width: 80%; }
}

/* ---------- 后台 ---------- */
.admin-body { background: var(--bg-alt); }
.admin-wrap { max-width: 1100px; margin: 24px auto; padding: 0 20px; }
.admin-card { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 24px; margin-bottom: 24px; }
.admin-card h2 { font-size: 20px; color: var(--primary-dark); margin-bottom: 16px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th, .admin-table td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.admin-table th { background: var(--bg-alt); }
.admin-table .actions { white-space: nowrap; }
.admin-form label { display: block; margin-bottom: 12px; font-weight: 600; }
.admin-form input, .admin-form select, .admin-form textarea {
    display: block; width: 100%; margin-top: 4px; padding: 8px 12px;
    border: 1px solid var(--border); border-radius: 4px; font-weight: 400; font-size: 14px;
}
.admin-form textarea { font-family: inherit; }
.admin-form .row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.admin-nav { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.admin-nav a { padding: 8px 16px; background: #fff; border: 1px solid var(--border); border-radius: 4px; color: var(--text); }
.admin-nav a.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.admin-login { max-width: 400px; margin: 10vh auto; }
.alert-err { background: #fdecea; border: 1px solid #f5c6c0; color: #a12622; padding: 10px 16px; border-radius: 6px; margin-bottom: 16px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px; }
.badge-ok { background: #e8f6ec; color: #1e7b3c; }
.badge-off { background: #f2f2f2; color: #888; }

/* ---------- 内容管理：缩略图卡片 ---------- */
.content-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 16px; }
.content-card { background: #fff; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: box-shadow .2s; }
.content-card:hover { box-shadow: 0 6px 18px rgba(0,0,0,.08); }
.content-card .thumb { display: block; height: 140px; background: var(--bg-alt); position: relative; }
.content-card .thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.content-card .thumb .no-pic { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #aaa; font-size: 13px; }
.content-card .info { padding: 10px 12px; }
.content-card .info h3 { font-size: 14px; margin-bottom: 6px; line-height: 1.4; }
.content-card .info h3 a { color: var(--text); }
.content-card .info h3 a:hover { color: var(--primary); }
.content-card .meta { font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.content-card .ops { font-size: 13px; display: flex; gap: 12px; }

/* ---------- 题图上传（点击/拖放） ---------- */
.pic-upload { position: relative; border: 2px dashed var(--border); border-radius: 8px; background: var(--bg-alt); min-height: 160px; display: flex; align-items: center; justify-content: center; cursor: pointer; overflow: hidden; }
.pic-upload.dragging { border-color: var(--primary); background: #eaf3fc; }
.pic-upload img { max-width: 100%; max-height: 260px; display: block; }
.pic-placeholder { text-align: center; color: #999; padding: 20px; }
.pic-placeholder .pic-icon { font-size: 34px; }
.pic-placeholder p { margin: 8px 0 0; font-size: 13px; }

/* ---------- 正文所见即所得编辑器 ---------- */
.ql-toolbar { border-radius: 6px 6px 0 0; }
.ql-container { border-radius: 0 0 6px 6px; background: #fff; font-size: 15px; min-height: 280px; }
.ql-editor { min-height: 280px; }
.ql-editor img { max-width: 100%; }

/* ---------- 高级选项折叠区 ---------- */
.advanced-box { border: 1px solid var(--border); border-radius: 6px; padding: 10px 14px; margin-bottom: 16px; background: #fafbfc; }
.advanced-box summary { cursor: pointer; font-weight: 600; color: var(--muted); font-size: 13px; }

/* 栏目内分组标题（如成型量产：汽车关联模具 / 电子连接器模具） */
.group-title { text-align: center; margin: 2rem 0 1.4rem; }
.group-title:first-of-type { margin-top: 0; }
.group-title .group-sign { display: inline-block; font-size: 1.4rem; font-weight: 700; color: var(--primary-dark); position: relative; padding-bottom: 12px; }
.group-title .s2 { font-size: .72em; font-weight: 400; color: #8a94a6; letter-spacing: .5px; }
.group-title i { display: block; width: 60px; height: 3px; background: var(--primary); margin: 8px auto 0; }