:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #182230; background: #f6f7f9; --line: #d9dee7; --muted: #526071; --soft: #eef3f8; --ink: #101828; --blue: #155eef; --green: #047857; --panel: #ffffff; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.site-header { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 28px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,0.94); backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 2; }
.site-header nav { display: flex; align-items: center; gap: 18px; font-size: 14px; font-weight: 650; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 780; color: var(--ink); }
.brand-mark { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 7px; background: var(--ink); color: #fff; font-size: 13px; }
main { max-width: 1160px; margin: 0 auto; padding: 42px 22px 78px; }
footer { border-top: 1px solid var(--line); padding: 24px; color: #667085; font-size: 14px; display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; background: #fff; }
.home { display: grid; grid-template-columns: minmax(0, 1fr) 280px; align-items: end; gap: 30px; padding: 28px 0 36px; }
.home h1 { font-size: clamp(34px, 5vw, 64px); line-height: 1.02; max-width: 780px; margin: 0 0 18px; letter-spacing: 0; }
.home p { max-width: 710px; font-size: 18px; line-height: 1.7; color: var(--muted); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.button { display: inline-flex; align-items: center; min-height: 42px; border: 1px solid var(--line); border-radius: 7px; padding: 0 16px; color: var(--ink); font-weight: 720; background: #fff; }
.button.primary { background: var(--ink); border-color: var(--ink); color: #fff; }
.hero-panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 22px; box-shadow: 0 18px 45px rgba(16,24,40,0.08); }
.hero-panel strong { display: block; font-size: 52px; line-height: 1; color: var(--ink); margin: 8px 0; }
.hero-panel span, .panel-label { color: var(--muted); margin: 0; font-size: 14px; }
.notice { display: flex; gap: 10px; align-items: flex-start; background: #ecfdf5; border: 1px solid #b7e4ce; border-radius: 8px; padding: 16px; color: #064e3b; margin-bottom: 34px; }
.notice span { color: #155e4c; line-height: 1.6; }
.eyebrow { color: var(--green); font-size: 12px; font-weight: 780; text-transform: uppercase; letter-spacing: 0.04em; }
.topic-section { margin-top: 38px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 20px; border-top: 1px solid var(--line); padding-top: 26px; }
.section-heading h2 { margin: 0; font-size: 28px; letter-spacing: 0; }
.section-heading p:not(.eyebrow) { max-width: 720px; margin: 8px 0 0; color: var(--muted); line-height: 1.65; }
.count-pill { display: inline-flex; align-items: center; white-space: nowrap; border: 1px solid var(--line); border-radius: 999px; padding: 7px 11px; color: var(--muted); background: #fff; font-size: 13px; font-weight: 700; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-top: 18px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 22px; display: flex; flex-direction: column; min-height: 245px; }
.card h2 { font-size: 21px; line-height: 1.22; margin: 8px 0 10px; letter-spacing: 0; }
.card p { color: var(--muted); line-height: 1.65; }
.card-keyword { margin-top: auto; display: inline-flex; width: fit-content; border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; color: var(--muted); font-size: 12px; }
.article { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: clamp(22px, 4vw, 54px); max-width: 920px; margin: 0 auto; }
.article h1 { font-size: clamp(32px, 4vw, 52px); line-height: 1.05; letter-spacing: 0; margin: 0 0 20px; }
.article h2 { margin-top: 38px; font-size: 28px; line-height: 1.2; }
.article h3 { margin-top: 26px; font-size: 20px; }
.article p, .article li { line-height: 1.78; color: #344054; }
.article code { background: var(--soft); padding: 2px 5px; border-radius: 4px; }
.article pre { overflow: auto; background: #111827; color: #e5e7eb; padding: 18px; border-radius: 8px; }
.table-wrap { overflow-x: auto; margin: 20px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { border: 1px solid var(--line); padding: 12px; text-align: left; vertical-align: top; }
th { background: #f2f4f7; color: var(--ink); }
.directory { max-width: 920px; margin: 0 auto; }
.directory h1 { font-size: clamp(34px, 5vw, 56px); line-height: 1.04; margin: 0 0 14px; letter-spacing: 0; }
.directory > p { color: var(--muted); line-height: 1.7; font-size: 18px; }
.list { display: grid; gap: 10px; margin-top: 26px; }
.list-row { display: flex; justify-content: space-between; gap: 16px; padding: 15px 16px; background: #fff; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); }
.list-row small { color: var(--muted); text-align: right; }
.tool-cloud { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
.tool-cloud a { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 9px 13px; background: #fff; color: var(--ink); font-weight: 650; }
.tool-index { display: grid; gap: 14px; margin-top: 30px; }
.tool-card { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 20px; padding: 22px; background: #fff; border: 1px solid var(--line); border-radius: 8px; scroll-margin-top: 88px; }
.tool-card h2 { margin: 6px 0 8px; font-size: 24px; letter-spacing: 0; }
.tool-card p { margin: 0; color: var(--muted); line-height: 1.65; }
.tool-links { display: grid; gap: 8px; align-content: start; }
.tool-links a { display: block; padding: 10px 12px; border: 1px solid var(--line); border-radius: 7px; background: var(--soft); color: var(--ink); font-weight: 650; }
@media (max-width: 760px) { .home { grid-template-columns: 1fr; } .site-header { align-items: flex-start; flex-direction: column; padding: 14px 18px; } .site-header nav { flex-wrap: wrap; gap: 12px; } .notice { display: block; } .section-heading { align-items: flex-start; flex-direction: column; } .list-row { flex-direction: column; } .list-row small { text-align: left; } .tool-card { grid-template-columns: 1fr; } }
@media (max-width: 640px) { main { padding: 24px 14px 48px; } .article { padding: 18px; } .card { min-height: auto; } }