:root {
    --geo-ink: #173238;
    --geo-muted: #62777a;
    --geo-paper: #fffaf2;
    --geo-surface: #ffffff;
    --geo-soft: #edf6f3;
    --geo-line: rgba(23, 50, 56, .12);
    --geo-teal: #237d75;
    --geo-teal-dark: #145851;
    --geo-coral: #d97968;
    --geo-shadow: 0 16px 44px rgba(31, 63, 63, .09);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--geo-ink);
    background:
        radial-gradient(circle at 92% 0%, rgba(195, 227, 218, .5), transparent 28rem),
        var(--geo-paper);
    font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    line-height: 1.75;
}

a { color: var(--geo-teal-dark); }

.geo-shell { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }

.geo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    padding: 24px 0;
}

.geo-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--geo-ink);
    font-weight: 800;
    text-decoration: none;
    letter-spacing: .04em;
}

.geo-mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    color: #fff;
    background: linear-gradient(145deg, #3cae9f, #17655e);
    border-radius: 11px;
    box-shadow: 0 6px 16px rgba(35, 125, 117, .2);
}

.geo-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 14px; }
.geo-nav a { color: var(--geo-muted); text-decoration: none; }
.geo-nav a:hover { color: var(--geo-teal-dark); text-decoration: underline; }

.geo-crumbs { color: var(--geo-muted); font-size: 13px; margin: 22px 0 8px; }
.geo-crumbs a { color: var(--geo-muted); }

.geo-hero { padding: 44px 0 34px; max-width: 860px; }
.geo-eyebrow { color: var(--geo-coral); font-size: 13px; font-weight: 800; letter-spacing: .12em; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.02em; }
h1 { max-width: 860px; margin: 10px 0 18px; font-size: clamp(34px, 6vw, 58px); }
h2 { margin: 0 0 14px; font-size: clamp(24px, 3vw, 34px); }
h3 { margin: 0 0 8px; font-size: 20px; }
.geo-lede { max-width: 760px; margin: 0; color: var(--geo-muted); font-size: 18px; }

.geo-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.geo-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    color: #fff;
    background: var(--geo-teal);
    border-radius: 999px;
    font-weight: 700;
    text-decoration: none;
}
.geo-button.secondary { color: var(--geo-teal-dark); background: var(--geo-soft); }
.geo-button:hover { filter: brightness(.96); }

.geo-answer, .geo-card, .geo-cta {
    background: var(--geo-surface);
    border: 1px solid var(--geo-line);
    border-radius: 24px;
    box-shadow: var(--geo-shadow);
}

.geo-answer { padding: 28px 30px; margin: 8px 0 44px; }
.geo-answer p:last-child, .geo-card p:last-child { margin-bottom: 0; }
.geo-section { padding: 16px 0 42px; }
.geo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.geo-card { padding: 24px; box-shadow: none; }
.geo-card p { color: var(--geo-muted); margin: 0; }
.geo-card .geo-icon { font-size: 25px; margin-bottom: 12px; }

.geo-list { display: grid; gap: 12px; padding-left: 1.2em; }
.geo-list li::marker { color: var(--geo-teal); }

.geo-table-wrap { overflow-x: auto; border: 1px solid var(--geo-line); border-radius: 18px; background: var(--geo-surface); }
.geo-table { width: 100%; min-width: 650px; border-collapse: collapse; }
.geo-table th, .geo-table td { padding: 15px 18px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--geo-line); }
.geo-table tr:last-child td { border-bottom: 0; }
.geo-table th { color: var(--geo-teal-dark); background: var(--geo-soft); font-size: 14px; }
.geo-table td:first-child { width: 22%; font-weight: 700; }

.geo-faq { display: grid; gap: 10px; }
.geo-faq details { padding: 17px 20px; background: var(--geo-surface); border: 1px solid var(--geo-line); border-radius: 16px; }
.geo-faq summary { cursor: pointer; font-weight: 700; }
.geo-faq p { color: var(--geo-muted); margin: 12px 0 0; }

.geo-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.geo-tag { padding: 4px 10px; color: var(--geo-teal-dark); background: var(--geo-soft); border-radius: 999px; font-size: 13px; }
.geo-note { color: var(--geo-muted); font-size: 14px; }
.geo-cta { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 28px 30px; margin: 10px 0 54px; }
.geo-cta p { color: var(--geo-muted); margin: 6px 0 0; }
.geo-footer { padding: 0 0 38px; color: var(--geo-muted); font-size: 13px; }
.geo-footer a { color: var(--geo-muted); }

@media (max-width: 760px) {
    .geo-shell { width: min(100% - 28px, 640px); }
    .geo-header { align-items: flex-start; flex-direction: column; padding: 18px 0; }
    .geo-hero { padding: 28px 0 24px; }
    .geo-lede { font-size: 16px; }
    .geo-answer { padding: 22px; margin-bottom: 28px; }
    .geo-grid { grid-template-columns: 1fr; }
    .geo-cta { align-items: flex-start; flex-direction: column; padding: 22px; margin-bottom: 36px; }
}