:root {
    color-scheme: light;
    --bg: #fff;
    --ink: #171717;
    --muted: #737373;
    --line: #ebebeb;
    --soft: #f5f5f5;
    --free: #047857;
    --free-bg: #ecfdf5;
    --warn: #9a3412;
    --warn-bg: #fff7ed;
    --bad: #b91c1c;
    --bad-bg: #fef2f2;
    --ok: #047857;
    --ok-bg: #ecfdf5;
    --wrap: 1120px;
    --sans: "Segoe UI", ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", sans-serif;
    --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { overflow-x: clip; }
body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink);
    background: var(--bg);
}
a { color: inherit; }
img, svg { display: block; }
button, input, textarea, select { font: inherit; color: inherit; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.02em; }
.wrap { width: min(var(--wrap), calc(100% - 32px)); margin: 0 auto; }
.mono { font-family: var(--mono); }
.eyebrow { margin: 0 0 8px; font-size: 12px; font-weight: 650; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.lede { color: var(--muted); max-width: 42rem; }
.hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }

.site-header {
    position: sticky; top: 0; z-index: 20;
    border-bottom: 1px solid rgba(235,235,235,.95);
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(14px);
}
.site-header__bar { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 650; }
.brand__name { font-size: 15px; }
.brand__badge { display: none; border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; font-family: var(--mono); font-size: 10px; color: var(--muted); }
.nav { display: flex; gap: 4px; }
.nav a { text-decoration: none; padding: 6px 10px; border-radius: 8px; font-size: 14px; }
.nav a:hover { background: var(--soft); }
.site-header__actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.balance { text-decoration: none; font-variant-numeric: tabular-nums; font-weight: 650; font-size: 14px; }
.nav-toggle { display: none; width: 40px; height: 40px; border: 0; background: transparent; }
.nav-toggle span, .nav-toggle span:before, .nav-toggle span:after {
    display: block; height: 2px; width: 18px; background: var(--ink); position: relative;
}
.nav-toggle span:before, .nav-toggle span:after { content: ""; position: absolute; left: 0; }
.nav-toggle span:before { top: -6px; }
.nav-toggle span:after { top: 6px; }

.btn {
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 10px; padding: 10px 14px; text-decoration: none; border: 1px solid transparent;
    cursor: pointer; font-weight: 650; font-size: 14px;
}
.btn--dark { background: var(--ink); color: #fff; }
.btn--ghost { background: #fff; border-color: var(--line); }
.btn--small { padding: 6px 10px; }
.btn:disabled { opacity: .7; cursor: wait; }

.gf-hero {
    position: relative; overflow: clip; border-bottom: 1px solid var(--line);
    background: radial-gradient(120% 80% at 50% -10%, #eef2f7 0%, transparent 55%), linear-gradient(180deg, #f7f8fa 0%, #fff 72%);
}
.gf-hero__grid {
    position: absolute; inset: 0; opacity: .035; pointer-events: none;
    background-image: linear-gradient(to right, currentColor 1px, transparent 1px), linear-gradient(to bottom, currentColor 1px, transparent 1px);
    background-size: 56px 56px;
}
.gf-hero__inner { position: relative; width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0 36px; text-align: center; }
.gf-hero h1 { margin: 0; font-size: clamp(2rem, 5vw, 3.1rem); font-weight: 650; }
.gf-hero__lead { margin: 10px auto 0; max-width: 36rem; color: var(--muted); }
.gf-search { margin: 22px auto 0; text-align: left; padding: 16px; border: 1px solid #e4e7ee; border-radius: 18px; background: rgba(255,255,255,.94); box-shadow: 0 10px 28px rgba(15,23,42,.06); }
.gf-search__label { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 8px; font-size: 13px; }
.gf-search__field { position: relative; display: flex; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.gf-search__field:focus-within { border-color: rgba(23,23,23,.45); box-shadow: 0 0 0 3px rgba(23,23,23,.06); }
.gf-search__field input {
    flex: 1; min-width: 0; height: 64px; border: 0; background: transparent; padding: 0 148px 0 16px;
    font-family: var(--mono); font-size: 16px;
}
.gf-search__field input:focus { outline: none; }
.gf-search__btn {
    position: absolute; right: 8px; top: 8px; height: 48px; border: 0; border-radius: 12px;
    background: var(--ink); color: #fff; padding: 0 16px; font-weight: 650; cursor: pointer;
}
.text-btn { border: 0; background: transparent; padding: 0; color: var(--muted); cursor: pointer; text-decoration: underline; }
.gf-search__meta { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 14px; }
.chips a { text-decoration: none; border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 6px 10px; font-size: 13px; }
.chips a:hover { border-color: #ccc; }
.price { font-weight: 650; }
.price--free { color: var(--free); background: var(--free-bg); border-radius: 999px; padding: 2px 8px; }
.captcha { margin-top: 12px; }

.block { padding: 42px 0; }
.block__head h2, .page h1 { margin: 0 0 8px; }
.block__head p { margin: 0; color: var(--muted); max-width: 40rem; }
.gf-cards { display: grid; gap: 10px; margin-top: 18px; }
.gf-card { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; background: #fff; }
.gf-card h2, .gf-card h3 { margin: 0 0 6px; font-size: 16px; }
.gf-card h2 a, .gf-card h3 a { text-decoration: none; }
.gf-card p { margin: 0; color: var(--muted); font-size: 14px; }
.gf-card__foot { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; font-size: 14px; }
.gf-card__foot a { font-weight: 650; }
.group-title { margin: 22px 0 8px; font-size: 15px; }
.link-list { display: grid; gap: 8px; }
.link-list a { display: flex; justify-content: space-between; gap: 12px; text-decoration: none; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.page { padding: 28px 0 64px; }
.page .gf-search { max-width: 720px; }
.page h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.crumbs { color: var(--muted); font-size: 13px; }
.crumbs a { color: inherit; }
.prose { max-width: 760px; }
.prose h2 { margin-top: 1.6em; }
.service-copy { margin-top: 28px; }
.faq details { border-top: 1px solid var(--line); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 650; }
.plain-list { padding-left: 18px; }
.stat { font-size: 28px; font-weight: 650; color: var(--ink); margin: 0; }

.banner { border-radius: 12px; padding: 10px 12px; margin: 12px 0; }
.banner--bad { background: var(--bad-bg); color: var(--bad); }
.banner--ok { background: var(--ok-bg); color: var(--ok); }
.banner--warn { background: var(--warn-bg); color: var(--warn); }
.report { margin: 18px 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.report div { display: grid; grid-template-columns: minmax(140px, 34%) 1fr; gap: 12px; padding: 12px 14px; border-top: 1px solid var(--line); }
.report div:first-child { border-top: 0; }
.report dt { color: var(--muted); }
.report dd { margin: 0; font-weight: 600; }
.example { margin-top: 14px; }
.example > summary { cursor: pointer; font-size: 13px; font-weight: 700; }
.example__label { margin: 0 0 4px; font-size: 13px; font-weight: 700; }
.example__note, .example__more { margin: 0 0 8px; color: var(--muted); font-size: 12px; }
.example .report { margin: 0; }
.gf-card .example { margin-top: 10px; }
.gf-card .example .report div { padding: 8px 10px; }
.page > .example { margin: 18px 0 8px; }
#example-dialog { width: min(640px, calc(100% - 24px)); }
.result-layout { display: grid; gap: 22px; align-items: start; margin-top: 8px; }
.result-sheet { margin: 0 0 8px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 10px 28px rgba(15, 23, 42, .05); overflow: hidden; }
.result-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 0; }
.result-aside { border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 14px 16px 8px; }
.result-aside h2 { margin: 0 0 4px; font-size: 15px; }
.result-aside__list a { display: flex; justify-content: space-between; align-items: center; gap: 12px; text-decoration: none; padding: 10px 0; border-top: 1px solid var(--line); font-size: 14px; }
.result-aside__list a strong { font-weight: 650; }
.result-aside__more { margin: 4px 0 8px; font-size: 13px; }
.result-aside__more a { font-weight: 650; }
.result-sheet__head { padding: 20px 22px 16px; background: linear-gradient(180deg, #f7f8fa 0%, #fff 78%); border-bottom: 1px solid var(--line); }
.result-device { width: 148px; height: 148px; margin: 0 0 12px; display: grid; place-items: center; }
.result-device img { max-width: 100%; max-height: 100%; object-fit: contain; }
.result-device--wire img { width: 112px; height: 112px; }
.result-sheet__head h2 { margin: 0; font-size: clamp(1.35rem, 3vw, 1.7rem); }
.result-sheet__id { margin: 8px 0 0; color: var(--muted); font-size: 14px; }
.result-pills { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 0; padding: 0; list-style: none; }
.result-pill { border-radius: 999px; padding: 4px 10px; background: var(--soft); font-size: 13px; font-weight: 650; }
.result-pill--ok { background: var(--ok-bg); color: var(--ok); }
.result-pill--bad { background: var(--bad-bg); color: var(--bad); }
.result-pill--warn { background: var(--warn-bg); color: var(--warn); }
.result-rows { margin: 0; }
.result-rows div { display: grid; grid-template-columns: minmax(160px, 32%) 1fr; gap: 16px; align-items: baseline; padding: 13px 22px; border-top: 1px solid var(--line); }
.result-rows div:first-child { border-top: 0; }
.result-rows div:nth-child(even) { background: #fafafa; }
.result-rows dt { color: var(--muted); font-size: 14px; }
.result-rows dd { margin: 0; font-weight: 650; }
.result-rows dd.is-ok { color: var(--ok); }
.result-rows dd.is-bad { color: var(--bad); }
.result-rows dd.is-warn { color: var(--warn); }
.raw { margin: 8px 0 22px; }
.raw summary { cursor: pointer; color: var(--muted); font-size: 13px; width: fit-content; }
.raw pre { white-space: pre-wrap; font-family: var(--mono); font-size: 13px; background: var(--soft); padding: 12px; border-radius: 12px; }

.auth { padding: 40px 0 70px; display: grid; justify-content: center; }
.auth__card { width: min(440px, 100%); border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.auth__social, .pay-actions, .packs { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.wechat-pay { max-width: 520px; margin-top: 22px; border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.wechat-pay h2 { margin: 0 0 8px; font-size: 1.15rem; }
.wechat-pay__qr { width: 220px; height: 220px; margin: 14px auto; }
.wechat-pay__qr img, .wechat-pay__qr canvas { display: block; width: 220px; height: 220px; }
.wechat-pay__status { margin: 0; text-align: center; }
.binance-pay { max-width: 520px; margin-top: 22px; border: 1px solid var(--line); border-radius: 16px; padding: 18px 18px 8px; }
.binance-pay h2 { margin: 0 0 8px; font-size: 1.15rem; }
.binance-pay__id { margin: 8px 0; font-size: 1.35rem; font-weight: 700; letter-spacing: .04em; }
.stack { display: grid; gap: 12px; max-width: 640px; }
.stack label, .auth__card label { display: grid; gap: 6px; font-size: 14px; font-weight: 650; }
.stack input, .stack textarea, .stack select, .auth__card input {
    width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-weight: 500;
}
.check { display: flex !important; align-items: center; gap: 8px; font-weight: 550; }
.check input { width: auto; }
.auth__switch { color: var(--muted); }
.pack { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.hint { color: var(--muted); font-size: 14px; }
code { font-family: var(--mono); font-size: 12px; }
.table-wrap { overflow-x: auto; }
.data { width: 100%; border-collapse: collapse; font-size: 14px; }
.data th, .data td { text-align: left; border-bottom: 1px solid var(--line); padding: 10px 8px; vertical-align: top; }
.admin-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.admin-nav a { text-decoration: none; border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; font-size: 14px; }
.admin-nav a.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin: 16px 0 20px; }
.stats article { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; background: #fff; }
.stats strong { display: block; color: var(--muted); font-size: 13px; }
.stats b { font-size: 28px; }
.stack fieldset { border: 1px solid var(--line); border-radius: 12px; padding: 4px 14px 14px; display: grid; gap: 12px; }
.stack legend { font-weight: 650; padding: 0 6px; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.sync-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; margin: 0 0 8px; }
.sync-bar label { display: grid; gap: 6px; font-size: 14px; font-weight: 650; min-width: 220px; }
.sync-bar select { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; font-weight: 500; }
.markup { display: flex; align-items: center; gap: 6px; }
.markup input { width: 72px; border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; }
.row-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.mono { font-family: var(--mono); }

.site-footer { border-top: 1px solid var(--line); padding: 36px 0 20px; color: var(--muted); font-size: 14px; }
.site-footer__grid { display: grid; gap: 22px; }
.site-footer h2 { margin: 0 0 8px; color: var(--ink); font-size: 14px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer__bottom { margin-top: 22px; font-size: 12px; }

.wait { position: fixed; inset: 0; z-index: 40; display: grid; place-items: center; background: rgba(255,255,255,.72); }
.wait[hidden] { display: none; }
.wait__card { width: min(320px, calc(100% - 32px)); text-align: center; border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 22px; box-shadow: 0 16px 40px rgba(0,0,0,.06); }
.wait__spin { width: 28px; height: 28px; margin: 0 auto 10px; border-radius: 50%; border: 2px solid var(--line); border-top-color: var(--ink); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.find-dialog { border: 0; border-radius: 16px; padding: 18px 18px 12px; width: min(460px, calc(100% - 24px)); }
.find-dialog::backdrop { background: rgba(0,0,0,.35); }

@media (min-width: 720px) {
    .brand__badge { display: inline-block; }
    .gf-cards { grid-template-columns: repeat(2, 1fr); }
    .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
    .link-list { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1020px) {
    .gf-cards { grid-template-columns: repeat(3, 1fr); }
    .result-layout { grid-template-columns: minmax(0, 1fr) 280px; }
    .result-aside { position: sticky; top: 76px; }
}
@media (max-width: 800px) {
    .nav-toggle { display: grid; place-items: center; }
    .nav {
        display: none; position: absolute; top: 60px; left: 0; right: 0;
        flex-direction: column; background: #fff; border-bottom: 1px solid var(--line); padding: 8px 16px 14px;
    }
    .nav.is-open { display: flex; }
    .site-header { position: sticky; }
    .site-header__bar { position: relative; }
    .gf-search__field input { padding-right: 16px; height: auto; min-height: 56px; }
    .gf-search__btn { position: static; width: 100%; margin: 8px; height: 46px; }
    .gf-search__field { flex-direction: column; }
    .report div, .result-rows div { grid-template-columns: 1fr; gap: 2px; }
    .result-sheet__head, .result-rows div { padding-left: 16px; padding-right: 16px; }
}