:root { color-scheme: light; font-family: "Segoe UI", "Microsoft YaHei", sans-serif; color: #182b45; background: #f3f6fa; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; padding: 60px 20px; }
.query-card { max-width: 520px; margin: auto; padding: 36px; background: white; border: 1px solid #dce5ef; border-radius: 18px; box-shadow: 0 12px 40px #2036530a; }
.query-card.with-result { max-width: 1080px; }
.eyebrow { color: #53708e; font-size: 13px; margin: 0 0 12px; }
h1 { font-size: 28px; margin: 0 0 12px; }
.intro, .privacy-note, .unit-note { color: #596b80; line-height: 1.7; }
.intro { font-size: 15px; margin-bottom: 28px; }
.test-credit-promo { margin: 0 0 24px; padding: 14px 16px; border: 1px solid #cddfff; border-radius: 10px; background: #eef5ff; color: #215bd3; font-size: 17px; font-weight: 650; line-height: 1.6; overflow-wrap: anywhere; }
label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 8px; }
input[type=password], select, button { width: 100%; min-height: 48px; border-radius: 8px; font: inherit; }
input[type=password] { padding: 12px; border: 1px solid #b6c5d5; }
select { padding: 10px 12px; border: 1px solid #b6c5d5; background: white; color: inherit; }
.period-label { margin-top: 14px; }
button { margin-top: 14px; border: 0; background: #215bd3; color: white; font-weight: 600; cursor: pointer; }
button:hover { background: #1748ad; }
input:focus-visible, select:focus-visible, summary:focus-visible, [tabindex]:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid #a6c2ff; outline-offset: 3px; }
.result { margin-top: 28px; padding-top: 24px; border-top: 1px solid #e1e8ef; }
.result-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
h2 { font-size: 18px; margin: 0; }
.status { font-size: 13px; background: #edf2f9; padding: 5px 10px; border-radius: 20px; }
dl { margin: 20px 0; }
dl div { display: flex; justify-content: space-between; gap: 15px; padding: 10px 0; }
dt { color: #596b80; }
dd { margin: 0; text-align: right; overflow-wrap: anywhere; }
.balance { font-size: 23px; font-weight: 700; color: #215bd3; }
.notice { padding: 12px; background: #f6f1e6; border-radius: 8px; font-size: 14px; line-height: 1.6; }
.error { margin-top: 20px; background: #fff0f0; color: #a02929; }
.success { margin-top: 20px; background: #eaf7f1; color: #14694e; }
.recharge-section { margin-top: 24px; padding: 18px; border: 1px solid #dce5ef; border-radius: 12px; background: #f8faff; }
.recharge-section summary, .recharge-history summary { cursor: pointer; font-weight: 600; line-height: 1.6; }
.recharge-help { margin: 14px 0; font-size: 14px; }
.buy-card-link { display: block; text-align: center; padding: 12px; margin: 0 0 16px; color: #215bd3; border: 1px solid #bcd1f5; border-radius: 8px; text-decoration: none; }
.buy-card-link:hover { background: #eaf1ff; }
.recharge-history { margin: 22px 0; }
.recharge-table-wrap { max-width: 100%; overflow-x: auto; margin-top: 12px; }
.recharge-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.recharge-table th, .recharge-table td { padding: 10px; text-align: left; border-bottom: 1px solid #e1e8ef; white-space: nowrap; }
.privacy-note, .unit-note { font-size: 12px; }
.referral-section { margin-top: 24px; padding: 20px; border: 1px solid #cddfff; border-radius: 12px; background: #f8faff; }
.referral-section input[type=text] { width: 100%; min-width: 0; min-height: 48px; padding: 12px; border: 1px solid #b6c5d5; border-radius: 8px; font: inherit; }
.referral-copy { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 10px; align-items: center; }
.referral-copy button { width: auto; margin: 0; padding: 10px 14px; }
.referral-copy-status { font-size: 13px; color: #215bd3; overflow-wrap: anywhere; }
.referral-section summary { cursor: pointer; font-weight: 600; }
@media(max-width: 700px) { .referral-copy { grid-template-columns: 1fr 1fr; } .referral-copy input { grid-column: 1 / -1; } .referral-section { padding: 16px; } }
.privacy-note { margin-top: 24px; }
footer { margin-top: 24px; text-align: center; font-size: 12px; }
a { color: #596b80; }
.price-jump { display: inline-block; margin: -12px 0 22px; color: #215bd3; font-weight: 600; font-size: 14px; text-decoration: none; }
.price-jump:hover { text-decoration: underline; }
.model-prices { max-width: 1440px; margin: 24px auto 0; padding: 30px 28px; background: white; border: 1px solid #dce5ef; border-radius: 18px; box-shadow: 0 12px 40px #2036530a; scroll-margin-top: 24px; }
.prices-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.prices-heading h2 { font-size: 23px; }
.price-unit { padding: 7px 12px; border-radius: 20px; background: #edf4ff; color: #215bd3; white-space: nowrap; font-size: 13px; }
.prices-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; gap: 24px; margin-top: 24px; }
.prices-group { min-width: 0; }
.prices-group h3 { margin: 0 0 14px; font-size: 18px; color: #215bd3; }
.prices-table-wrap { overflow-x: auto; max-width: 100%; border: 1px solid #dce5ef; border-radius: 12px; }
.prices-table { width: 100%; min-width: 460px; border-collapse: collapse; font-size: 13px; }
.prices-table caption { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.prices-table th, .prices-table td { padding: 16px 8px; text-align: right; font-variant-numeric: tabular-nums; border-bottom: 1px solid #e6ecf3; white-space: nowrap; }
.prices-table thead th { background: #eef4fc; color: #385574; font-size: 13px; font-weight: 600; }
.prices-table th:first-child { text-align: left; }
.prices-table tbody th { font-weight: 600; color: #182b45; }
.prices-table tbody tr:nth-child(even) { background: #f8faff; }
.prices-table tbody tr:hover { background: #edf4ff; }
.prices-table tbody tr:last-child th, .prices-table tbody tr:last-child td { border-bottom: 0; }
.prices-table .prices-empty { text-align: center; color: #596b80; }
@media(max-width: 1039px) { .prices-groups { grid-template-columns: minmax(0, 1fr); } }
@media(max-width: 480px) { body { padding: 24px 12px; } .query-card { padding: 24px 20px; } h1 { font-size: 24px; } dl div { flex-wrap: wrap; } }
@media(max-width: 600px) { .model-prices { padding: 24px 16px; } .prices-heading { align-items: flex-start; flex-wrap: wrap; gap: 12px; } .prices-heading h2 { font-size: 21px; } .prices-table th, .prices-table td { padding: 14px 8px; } }