/* LinkCube 绿叶 · linkecube.lat — 品牌资料/评测/套餐决策站
   视觉系统：深色决策面板风格，绿叶主题绿色，卡片密集、含对比表格 */

:root {
    --leaf: #34d399;
    --leaf-deep: #10b981;
    --leaf-soft: rgba(52, 211, 153, 0.12);
    --bg-0: #0a120e;
    --bg-1: #0f1a14;
    --bg-card: #13221b;
    --bg-card-hover: #17291f;
    --border: #234032;
    --text-main: #eafff4;
    --text-muted: #9db7ab;
    --text-dim: #5f7b6e;
    --warn: #f6c453;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg-0);
    color: var(--text-main);
    line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }

.wrap { max-width: 1140px; margin: 0 auto; padding: 0 5%; }

/* ---- Top bar ---- */
.topbar {
    background: var(--bg-1);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
    font-size: 13px;
    color: var(--text-dim);
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 6px; }
.topbar strong { color: var(--leaf); }

/* ---- Nav ---- */
.navbar {
    position: sticky; top: 0; z-index: 100;
    background: rgba(10, 18, 14, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}
.navbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.nav-brand { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; color: var(--text-main); }
.nav-brand .leaf-mark { color: var(--leaf); font-size: 22px; }
.nav-links { display: flex; gap: 22px; font-size: 14.5px; }
.nav-links a { color: var(--text-muted); transition: color .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--leaf); }
.nav-cta { display: flex; gap: 10px; align-items: center; }
.menu-toggle { display: none; background: none; border: none; color: var(--text-main); font-size: 24px; cursor: pointer; }
.nav-menu-mobile { display: none; }

.btn { display: inline-block; padding: 10px 22px; border-radius: 8px; font-weight: 600; font-size: 14.5px; transition: all .2s; cursor: pointer; border: 1px solid transparent; }
.btn-primary { background: var(--leaf); color: #062218; }
.btn-primary:hover { background: var(--leaf-deep); transform: translateY(-1px); }
.btn-outline { border-color: var(--border); color: var(--text-main); }
.btn-outline:hover { border-color: var(--leaf); color: var(--leaf); }
.btn-block { display: block; text-align: center; width: 100%; }
.btn-sm { padding: 7px 16px; font-size: 13px; }

/* ---- Breadcrumb ---- */
.breadcrumb { font-size: 13px; color: var(--text-dim); padding: 16px 0 0; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--leaf); }

/* ---- Hero ---- */
.hero { padding: 56px 0 40px; border-bottom: 1px solid var(--border); background: radial-gradient(ellipse 80% 60% at 50% -10%, var(--leaf-soft), transparent); }
.hero .tag { display: inline-block; background: var(--leaf-soft); color: var(--leaf); border: 1px solid rgba(52,211,153,.35); padding: 5px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin-bottom: 18px; }
.hero h1 { font-size: 34px; line-height: 1.35; margin-bottom: 16px; max-width: 780px; }
.hero p.lead { font-size: 16.5px; color: var(--text-muted); max-width: 680px; margin-bottom: 26px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta { margin-top: 24px; display: flex; gap: 24px; flex-wrap: wrap; font-size: 13.5px; color: var(--text-dim); }

.page-header { padding: 44px 0 30px; border-bottom: 1px solid var(--border); background: radial-gradient(ellipse 80% 50% at 50% -10%, var(--leaf-soft), transparent); }
.page-header h1 { font-size: 30px; margin-bottom: 12px; }
.page-header p { color: var(--text-muted); max-width: 680px; font-size: 15.5px; }
.page-meta { margin-top: 16px; font-size: 13px; color: var(--text-dim); }

/* ---- Sections ---- */
section.block { padding: 56px 0; }
section.block.tight { padding: 36px 0; }
.block-head { margin-bottom: 30px; max-width: 720px; }
.block-head .eyebrow { color: var(--leaf); font-size: 13px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; display: block; margin-bottom: 8px; }
.block-head h2 { font-size: 26px; margin-bottom: 10px; }
.block-head p { color: var(--text-muted); font-size: 15px; }
.divider { border-top: 1px solid var(--border); }

/* ---- Grid / cards ---- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 26px; transition: border-color .2s, transform .2s; }
.card:hover { border-color: var(--leaf); transform: translateY(-3px); }
.card .icon { font-size: 26px; margin-bottom: 12px; }
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { color: var(--text-muted); font-size: 14.5px; }
.card a.card-link { color: var(--leaf); font-size: 13.5px; font-weight: 600; margin-top: 12px; display: inline-block; }

/* ---- Entry index grid (SEO内容入口) ---- */
.entry-card { display: flex; flex-direction: column; height: 100%; }
.entry-card .kw { font-size: 12px; color: var(--text-dim); margin-bottom: 6px; }

/* ---- Pricing ---- */
.pricing-note { background: var(--bg-1); border: 1px dashed var(--border); border-radius: 12px; padding: 20px 24px; margin-bottom: 30px; font-size: 14.5px; color: var(--text-muted); }
.pricing-note strong { color: var(--leaf); }
.code-pill { display: inline-block; background: var(--leaf-soft); border: 1px dashed var(--leaf); color: var(--leaf); font-family: "Consolas", monospace; padding: 3px 12px; border-radius: 6px; font-weight: 700; letter-spacing: 1px; }

.pricing-card { display: flex; flex-direction: column; text-align: left; position: relative; }
.pricing-card.highlight { border-color: var(--leaf); box-shadow: 0 0 0 1px var(--leaf) inset; }
.pricing-card .badge { position: absolute; top: -12px; right: 20px; background: var(--leaf); color: #062218; font-size: 12px; font-weight: 700; padding: 3px 12px; border-radius: 10px; }
.pricing-card .plan-name { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.pricing-card .plan-quota { color: var(--text-dim); font-size: 13.5px; margin-bottom: 14px; }
.pricing-card .price-now { font-size: 30px; font-weight: 800; color: var(--leaf); }
.pricing-card .price-now small { font-size: 13px; color: var(--text-dim); font-weight: 400; }
.pricing-card .price-old { color: var(--text-dim); text-decoration: line-through; font-size: 14px; margin-left: 8px; }
.pricing-card ul { margin: 14px 0 18px; font-size: 13.5px; color: var(--text-muted); }
.pricing-card ul li { margin-bottom: 6px; padding-left: 16px; position: relative; }
.pricing-card ul li::before { content: '·'; color: var(--leaf); position: absolute; left: 0; font-weight: 900; }

/* ---- Table ---- */
.table-scroll { overflow-x: auto; border-radius: 12px; border: 1px solid var(--border); }
table.data-table { width: 100%; border-collapse: collapse; min-width: 720px; background: var(--bg-card); }
table.data-table th, table.data-table td { padding: 14px 16px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--border); }
table.data-table th { background: var(--bg-1); color: var(--leaf); font-weight: 700; white-space: nowrap; }
table.data-table tr:last-child td { border-bottom: none; }
table.data-table tr.row-highlight { background: var(--leaf-soft); }
.fineprint { font-size: 12.5px; color: var(--text-dim); margin-top: 14px; }

/* ---- Spec grid ---- */
.spec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.spec-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; }
.spec-label { font-size: 12.5px; color: var(--text-dim); margin-bottom: 4px; }
.spec-value { font-size: 14.5px; color: var(--text-main); }

/* ---- Callout boxes ---- */
.callout { border-radius: 12px; padding: 20px 24px; margin: 24px 0; font-size: 14.5px; border: 1px solid var(--border); }
.callout.info { background: var(--leaf-soft); border-color: rgba(52,211,153,.35); }
.callout.warn { background: rgba(246, 196, 83, .08); border-color: rgba(246, 196, 83, .35); }
.callout strong { color: var(--leaf); }
.callout.warn strong { color: var(--warn); }

/* ---- Prose / article ---- */
.prose { max-width: 780px; }
.prose h2 { font-size: 23px; margin: 40px 0 14px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 18px; margin: 26px 0 10px; color: var(--text-main); }
.prose p { color: var(--text-muted); font-size: 15.5px; margin-bottom: 16px; }
.prose ul, .prose ol { margin: 0 0 18px 0; }
.prose ul li, .prose ol li { color: var(--text-muted); font-size: 15.5px; margin-bottom: 8px; padding-left: 22px; position: relative; }
.prose ul li::before { content: '—'; position: absolute; left: 0; color: var(--leaf); }
.prose ol { counter-reset: step; }
.prose ol li { counter-increment: step; padding-left: 30px; }
.prose ol li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 20px; height: 20px; border-radius: 50%; background: var(--leaf-soft); color: var(--leaf); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.prose a { color: var(--leaf); text-decoration: underline; }
.prose strong { color: var(--text-main); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 20px 0; }
.two-col h4 { font-size: 15px; margin-bottom: 10px; color: var(--text-main); }

/* ---- Layout w/ sidebar (used on pingce/taocan pages) ---- */
.layout { display: grid; grid-template-columns: 1fr 260px; gap: 44px; align-items: start; }
.side-nav { position: sticky; top: 90px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.side-nav h4 { font-size: 13px; color: var(--text-dim); text-transform: uppercase; margin-bottom: 12px; letter-spacing: .04em; }
.side-nav ul li { margin-bottom: 10px; font-size: 14px; }
.side-nav ul li a { color: var(--text-muted); }
.side-nav ul li a:hover { color: var(--leaf); }
.side-nav .side-cta { margin-top: 18px; }

/* ---- FAQ ---- */
.faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 780px; }
details.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; }
details.faq-item summary { padding: 16px 20px; font-size: 15px; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::after { content: '+'; color: var(--leaf); font-size: 20px; }
details.faq-item[open] summary::after { content: '−'; }
details.faq-item[open] { border-color: var(--leaf); }
details.faq-item p { padding: 0 20px 18px; color: var(--text-muted); font-size: 14.5px; }

/* ---- Scenario cards ---- */
.scenario-card { text-align: left; }
.scenario-card .role { font-size: 12.5px; color: var(--leaf); font-weight: 700; margin-bottom: 8px; text-transform: uppercase; letter-spacing: .03em; }

/* ---- CTA band ---- */
.cta-band { background: linear-gradient(135deg, var(--bg-1), var(--bg-card)); border: 1px solid var(--border); border-radius: 16px; padding: 44px; text-align: center; margin: 10px 0; }
.cta-band h2 { font-size: 26px; margin-bottom: 12px; }
.cta-band p { color: var(--text-muted); margin-bottom: 22px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* ---- Related links ---- */
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.related-grid a { display: block; background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; font-size: 14.5px; color: var(--text-main); }
.related-grid a:hover { border-color: var(--leaf); color: var(--leaf); }
.related-grid a .kw-tag { color: var(--text-dim); font-size: 12px; display: block; margin-bottom: 4px; }

/* ---- Footer ---- */
footer.site-footer { border-top: 1px solid var(--border); background: var(--bg-1); padding: 50px 0 26px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.3fr; gap: 30px; margin-bottom: 34px; }
.footer-col h4 { font-size: 13.5px; color: var(--text-main); margin-bottom: 14px; }
.footer-col ul li { margin-bottom: 9px; font-size: 14px; }
.footer-col ul li a { color: var(--text-muted); }
.footer-col ul li a:hover { color: var(--leaf); }
.footer-brand-line { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; margin-bottom: 10px; }
.footer-desc { color: var(--text-dim); font-size: 13.5px; max-width: 320px; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; font-size: 12.5px; color: var(--text-dim); }
.footer-bottom p { margin-bottom: 8px; }

/* ---- Simple content pages (about/terms/privacy/sitemap) ---- */
.simple-content { max-width: 760px; padding: 44px 0 60px; }
.simple-content h1 { font-size: 28px; margin-bottom: 20px; }
.simple-content h2 { font-size: 19px; margin: 28px 0 10px; }
.simple-content p { color: var(--text-muted); margin-bottom: 14px; font-size: 15px; }
.simple-content ul { margin: 0 0 14px 20px; list-style: disc; }
.simple-content ul li { color: var(--text-muted); margin-bottom: 8px; font-size: 15px; }
.sitemap-list { columns: 2; gap: 40px; }
.sitemap-list li { margin-bottom: 10px; break-inside: avoid; }
.sitemap-list a { color: var(--leaf); }

/* ---- 404 ---- */
.notfound { text-align: center; padding: 120px 5%; }
.notfound .code { font-size: 90px; font-weight: 800; color: var(--leaf); }
.notfound h1 { font-size: 24px; margin: 10px 0 16px; }
.notfound p { color: var(--text-muted); margin-bottom: 24px; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .layout { grid-template-columns: 1fr; }
    .side-nav { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .spec-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .nav-links, .nav-cta .btn-outline { display: none; }
    .menu-toggle { display: block; }
    .nav-menu-mobile { display: none; flex-direction: column; gap: 14px; padding: 16px 5% 22px; background: var(--bg-1); border-bottom: 1px solid var(--border); }
    .nav-menu-mobile.active { display: flex; }
    .nav-menu-mobile a { color: var(--text-muted); font-size: 15px; }
    .hero h1 { font-size: 26px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .two-col { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 26px; }
    .sitemap-list { columns: 1; }
    section.block { padding: 38px 0; }
    table.data-table { min-width: 600px; }
}