/* Personal Blog Theme */
:root {
    --color-primary: #2f6f5e;
    --color-primary-dark: #235346;
    --color-accent: #b4533a;
    --color-bg: #faf8f4;
    --color-surface: #ffffff;
    --color-ink: #191816;
    --color-text: #45413b;
    --color-muted: #81786f;
    --color-border: #e8e1d8;
    --color-footer-bg: #171918;
    --radius: 8px;
    --shadow: 0 12px 32px rgba(42, 35, 28, .07);
    --shadow-strong: 0 24px 62px rgba(42, 35, 28, .13);
    --header-main-height: 72px;
    --header-topbar-height: 34px;
    --header-with-topbar-height: calc(var(--header-main-height) + var(--header-topbar-height));
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif; color: var(--color-text); background: var(--color-bg); font-size: 16px; line-height: 1.82; }
a { color: inherit; text-decoration: none; transition: color .2s, background .2s, border-color .2s, transform .2s, box-shadow .2s; }
a:hover { color: var(--color-primary); }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
button { border: 0; cursor: pointer; background: none; }
ul { list-style: none; }
.container, .section-container, .page-container, .page-content { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.main-content { min-height: 60vh; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 1000; background: rgba(250,248,244,.94); border-bottom: 1px solid rgba(232,225,216,.92); backdrop-filter: blur(16px); }
.site-header.scrolled { box-shadow: 0 10px 26px rgba(42,35,28,.08); }
.top-bar { background: #171918; color: rgba(255,255,255,.72); font-size: 12px; }
.top-bar-inner { max-width: 1160px; margin: 0 auto; padding: 6px 24px; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.top-bar-actions, .top-bar-phone { display: flex; align-items: center; gap: 8px; }
.top-bar a { color: rgba(255,255,255,.82); }
.header-container { height: var(--header-main-height); max-width: 1160px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.header-logo { display: inline-flex; align-items: center; min-width: 0; flex: 0 0 auto; }
.logo-text, .header-logo .logo-text { color: var(--color-ink); font-family: Georgia, "Times New Roman", serif; font-size: 25px; font-weight: 700; letter-spacing: 0; }
.logo-img { max-height: 38px; width: auto; object-fit: contain; }
.main-nav { flex: 1; display: flex; justify-content: center; min-width: 0; }
.nav-wrap { display: flex; align-items: center; gap: 2px; }
.nav-item, .nav-more, .nav-subitem, .nav-more-item { position: relative; }
.nav-link, .nav-more-btn { display: inline-flex; align-items: center; gap: 5px; min-height: 38px; padding: 0 12px; border-radius: 999px; color: #332f2a; font-size: 14px; font-weight: 800; white-space: nowrap; }
.nav-link:hover, .nav-link.active, .nav-more-btn:hover { color: var(--color-primary); background: #edf3ee; }
.nav-dropdown, .nav-submenu, .nav-more-dropdown { display: none; position: absolute; top: 100%; left: 0; min-width: 190px; padding: 8px; border: 1px solid var(--color-border); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-strong); z-index: 20; }
.nav-submenu { top: 0; left: 100%; margin-left: 4px; }
.nav-item:hover > .nav-dropdown, .nav-subitem:hover > .nav-submenu, .nav-more:hover > .nav-more-dropdown { display: block; }
.nav-sub-link, .nav-submenu-link, .nav-more-link { display: flex; justify-content: space-between; gap: 14px; padding: 9px 12px; border-radius: 6px; color: var(--color-text); font-size: 14px; white-space: nowrap; }
.nav-sub-link:hover, .nav-submenu-link:hover, .nav-more-link:hover { color: var(--color-primary); background: #f4f0ea; }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.header-search { width: 210px; height: 40px; display: flex; align-items: center; border: 1px solid var(--color-border); border-radius: 999px; background: #fff; overflow: hidden; }
.header-search input { flex: 1; min-width: 0; height: 100%; border: 0; outline: 0; padding: 0 12px 0 15px; background: transparent; color: var(--color-ink); }
.header-search button { width: 42px; height: 40px; display: grid; place-items: center; color: var(--color-primary); }
.header-consult, .btn, .btn-primary, .btn-secondary { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 20px; border-radius: 999px; font-weight: 900; white-space: nowrap; }
.header-consult, .btn-primary { background: var(--color-ink); color: #fff; box-shadow: 0 10px 26px rgba(25,24,22,.12); }
.header-consult:hover, .btn-primary:hover { color: #fff; background: var(--color-primary); transform: translateY(-1px); }
.btn-secondary { border: 1px solid var(--color-border); background: #fff; color: var(--color-ink); box-shadow: none; }
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); background: #f4f8f4; }
.lang-switch { position: relative; }
.lang-switch-btn { display: inline-flex; align-items: center; gap: 6px; color: inherit; }
.lang-dropdown { display: none; position: absolute; right: 0; top: calc(100% + 8px); min-width: 120px; padding: 6px; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); box-shadow: var(--shadow-strong); }
.lang-switch:hover .lang-dropdown { display: block; }
.lang-dropdown a { display: block; padding: 8px 10px; border-radius: 6px; color: var(--color-text); }
.menu-toggle { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.menu-toggle span { width: 22px; height: 2px; border-radius: 2px; background: var(--color-ink); }
.mobile-nav { display: none; background: #faf8f4; border-top: 1px solid var(--color-border); }
.mobile-nav.open { display: block; }
.mobile-nav-link, .mobile-nav-child, .mobile-nav-grandchild, .mobile-phone { display: block; padding: 12px 24px; border-bottom: 1px solid #eee7de; color: var(--color-ink); }
.mobile-nav-child { padding-left: 40px; color: var(--color-text); }
.mobile-nav-grandchild { padding-left: 56px; color: var(--color-muted); }
.mobile-search { display: flex; gap: 8px; padding: 12px 24px; border-bottom: 1px solid #eee7de; }
.mobile-search input { flex: 1; min-width: 0; height: 38px; border: 1px solid var(--color-border); border-radius: 999px; padding: 0 14px; }
.mobile-search button { height: 38px; padding: 0 16px; border-radius: 999px; background: var(--color-primary); color: #fff; }
.mobile-lang-switch { display: flex; }
.mobile-lang-item { flex: 1; padding: 12px; text-align: center; border-bottom: 1px solid #eee7de; }

.section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--color-primary); font-size: 13px; font-weight: 900; text-transform: uppercase; letter-spacing: 0; }
.section-kicker::before { content: ""; width: 22px; height: 2px; background: var(--color-accent); }
.section-title { color: var(--color-ink); font-family: Georgia, "Times New Roman", serif; font-size: 50px; line-height: 1.08; font-weight: 700; }
.page-banner { margin-top: var(--header-main-height); padding: 74px 24px 64px; text-align: center; background: linear-gradient(135deg, #1e2d29, #2f6f5e 58%, #b4533a); color: #fff; }
.site-header.has-topbar + .main-content .page-banner, .site-header.has-topbar + .page-banner { margin-top: var(--header-with-topbar-height); }
.page-banner h1 { font-family: Georgia, "Times New Roman", serif; font-size: 58px; line-height: 1.12; font-weight: 700; margin-bottom: 12px; }
.page-banner p { color: rgba(255,255,255,.78); max-width: 660px; margin: 0 auto; }
.breadcrumb { max-width: 1160px; margin: 0 auto; padding: 18px 24px; display: flex; gap: 9px; color: var(--color-muted); font-size: 13px; }
.breadcrumb .current { color: var(--color-text); }

.blog-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 34px; align-items: start; }
.post-list { display: grid; gap: 18px; }
.post-card { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 20px; padding: 18px; border: 1px solid var(--color-border); border-radius: 8px; background: #fff; box-shadow: var(--shadow); }
.post-cover { overflow: hidden; aspect-ratio: 1.32 / 1; border-radius: 8px; background: #ede8df; }
.post-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.post-card:hover .post-cover img { transform: scale(1.035); }
.post-body h2, .post-body h3 { margin: 0 0 10px; color: var(--color-ink); font-family: Georgia, "Times New Roman", serif; font-size: 27px; line-height: 1.22; font-weight: 700; }
.post-body p { color: var(--color-muted); line-height: 1.85; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.post-meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 0 0 12px; color: var(--color-muted); font-size: 13px; }
.post-meta span { padding: 4px 8px; border-radius: 999px; background: #f3efe8; }
.post-link { display: inline-flex; margin-top: 14px; color: var(--color-primary); font-weight: 900; }
.sidebar-card { padding: 20px; border: 1px solid var(--color-border); border-radius: 8px; background: #fff; box-shadow: var(--shadow); }
.sidebar-card + .sidebar-card { margin-top: 18px; }
.sidebar-card h3 { margin: 0 0 14px; color: var(--color-ink); font-size: 18px; font-weight: 900; }
.sidebar-list { display: grid; gap: 12px; }
.sidebar-list a { display: block; padding-bottom: 12px; border-bottom: 1px solid #f0e9e0; color: var(--color-text); font-weight: 800; line-height: 1.5; }
.sidebar-list a:last-child { border-bottom: 0; padding-bottom: 0; }
.category-filter { display: flex; flex-wrap: wrap; gap: 10px; }
.category-filter a, .category-filter-item { display: inline-flex; align-items: center; min-height: 38px; padding: 0 15px; border: 1px solid var(--color-border); border-radius: 999px; background: #fff; color: var(--color-text); font-weight: 800; }
.category-filter a:hover, .category-filter .active, .category-filter-item.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.pagination-wrapper, .pagination, .pager { display: flex; justify-content: center; gap: 8px; margin-top: 34px; }
.pagination a, .pagination span, .pager a, .pager span { min-width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--color-border); border-radius: 999px; background: #fff; color: var(--color-text); }
.pagination .active, .pagination a:hover, .pager .current, .pager a:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.article-content, .detail-content, .richtext { color: var(--color-text); line-height: 2; }
.article-content img, .detail-content img, .richtext img { max-width: 100%; height: auto; border-radius: 8px; margin: 18px 0; }

.site-footer { background: var(--color-footer-bg); color: rgba(255,255,255,.72); padding: 56px 0 24px; }
.footer-container { max-width: 1160px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: minmax(260px, 1fr) 1fr minmax(220px, .8fr); gap: 34px; }
.footer-logo .logo-text { color: #fff; font-family: Georgia, "Times New Roman", serif; font-size: 25px; }
.footer-desc { margin-top: 14px; max-width: 360px; color: rgba(255,255,255,.58); line-height: 1.8; }
.footer-title { margin-bottom: 14px; color: #fff; font-size: 17px; font-weight: 900; }
.footer-nav, .footer-contact-list, .footer-links, .footer-contact { display: grid; gap: 9px; }
.footer-nav-link, .footer-links a { color: rgba(255,255,255,.66); }
.footer-nav-link:hover, .footer-links a:hover { color: #fff; }
.footer-contact-list li, .footer-contact li { color: rgba(255,255,255,.66); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.contact-label { display: block; color: rgba(255,255,255,.42); font-size: 12px; }
.contact-value { color: rgba(255,255,255,.7); }
.footer-bottom { max-width: 1160px; margin: 34px auto 0; padding: 20px 24px 0; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.48); font-size: 13px; }
.footer-bottom-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-bottom .footer-container { display: block; padding: 0; }
.footer-wechat, .footer-social { display: none; }
.back-to-top { position: fixed; right: 26px; bottom: 26px; z-index: 900; width: 42px; height: 42px; border-radius: 50%; display: none; align-items: center; justify-content: center; background: var(--color-primary); color: #fff; box-shadow: var(--shadow-strong); }
.back-to-top.show { display: flex; }
.sb-qr-floating { position: fixed; right: 22px; bottom: 84px; z-index: 910; }
.sb-qr-floating__btn, .sb-qr-cta { min-height: 40px; padding: 0 16px; border-radius: 999px; background: var(--color-primary); color: #fff; font-weight: 900; box-shadow: var(--shadow-strong); }
.sb-qr-modal { position: fixed; inset: 0; z-index: 3000; display: grid; place-items: center; background: rgba(23,25,24,.62); padding: 24px; }
.sb-qr-modal__box { width: min(360px, 100%); padding: 24px; border-radius: 8px; background: #fff; text-align: center; box-shadow: var(--shadow-strong); }

@media (max-width: 1020px) {
    .main-nav, .header-search, .header-consult, .top-bar { display: none; }
    .menu-toggle { display: inline-flex; }
    .blog-grid, .footer-container { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
    .container, .section-container, .page-container, .page-content { padding: 0 18px; }
    .header-container { height: 66px; padding: 0 18px; }
    .logo-text, .header-logo .logo-text { font-size: 21px; }
    .page-banner { margin-top: 66px; padding: 52px 18px 46px; }
    .page-banner h1, .section-title { font-size: 34px; }
    .post-card { grid-template-columns: 1fr; }
}