:root {
  --ink: #16213a; --ink-2: #4a5470; --line: #e6e2da; --bg: #fbf8f3; --card: #ffffff;
  --accent: #ff5a36; --accent-ink: #ffffff; --accent-soft: #fff0eb; --ok: #1f8a5b; --bad: #c2410c; --sky: #2f5bea;
  --r: 16px; --shadow: 0 1px 2px rgba(22,33,58,.06), 0 8px 24px rgba(22,33,58,.06);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "PingFang SC", "PingFang TC", "Hiragino Sans", "Noto Sans CJK SC", "Noto Sans KR", "Noto Sans Devanagari", "Microsoft YaHei", sans-serif;
  color: var(--ink); background: var(--bg);
}
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: var(--sky); }
img { max-width: 100%; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
header.top { position: sticky; top: 0; z-index: 10; background: rgba(251,248,243,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 19px; color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.logo .mark { width: 30px; height: 30px; border-radius: 9px; background: var(--accent); display: grid; place-items: center; }
nav.links { display: flex; gap: 18px; margin-left: auto; align-items: center; }
nav.links a { color: var(--ink-2); text-decoration: none; font-size: 14px; }
nav.links a:hover { color: var(--ink); }
select.lang { border: 1px solid var(--line); background: var(--card); border-radius: 10px; padding: 6px 8px; font: inherit; font-size: 14px; color: var(--ink); }
@media (max-width: 720px) { nav.links a.hide-sm { display: none; } }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 12px; padding: 13px 20px;
  font: inherit; font-weight: 700; font-size: 16px; cursor: pointer; text-decoration: none; transition: transform .08s ease, opacity .2s; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { opacity: .92; }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); }
.btn[disabled] { opacity: .55; cursor: progress; }

.hero { padding-top: 72px; padding-bottom: 40px; }
.kicker { display: inline-block; background: var(--accent-soft); color: var(--bad); font-weight: 700; font-size: 13px; padding: 6px 12px; border-radius: 99px; }
.hero h1 { font-size: clamp(34px, 6vw, 60px); line-height: 1.08; letter-spacing: -.03em; margin: 18px 0 16px; max-width: 16ch; }
:lang(zh-Hans) .hero h1, :lang(zh-Hant) .hero h1, :lang(ja) .hero h1, :lang(ko) .hero h1 { max-width: 18em; letter-spacing: 0; line-height: 1.2; }
.hero p.sub { font-size: 19px; color: var(--ink-2); max-width: 60ch; margin: 0 0 28px; }
.hero .ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.note { color: var(--ink-2); font-size: 14px; margin-top: 12px; }

section { padding: 56px 0; }
h2 { font-size: clamp(26px, 3.6vw, 36px); letter-spacing: -.02em; margin: 0 0 10px; line-height: 1.2; }
.lead { color: var(--ink-2); font-size: 17px; margin: 0 0 28px; max-width: 62ch; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 900px) { .grid4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px) { .grid3, .grid4 { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--ink-2); }
.num { width: 34px; height: 34px; border-radius: 10px; background: var(--ink); color: #fff; display: grid; place-items: center; font-weight: 800; margin-bottom: 12px; }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 28px; box-shadow: var(--shadow); }
form .row { display: flex; gap: 12px; flex-wrap: wrap; }
label.f { display: block; font-weight: 600; font-size: 14px; margin: 0 0 6px; }
input[type=text], input[type=email], input[type=url], select.in, textarea {
  width: 100%; border: 1.5px solid var(--line); border-radius: 12px; padding: 12px 14px; font: inherit; font-size: 16px; background: #fff; color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--sky); outline-offset: 1px; border-color: transparent; }
textarea { min-height: 84px; resize: vertical; }
.field { flex: 1 1 260px; margin-bottom: 14px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--ink-2); margin: 6px 0 16px; }
.check input { margin-top: 3px; width: 18px; height: 18px; flex: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.msg { margin-top: 12px; font-weight: 600; }
.msg.err { color: var(--bad); } .msg.ok { color: var(--ok); }

.spinner { width: 18px; height: 18px; border-radius: 50%; border: 3px solid rgba(255,255,255,.4); border-top-color: #fff; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* report */
.report { margin-top: 26px; display: grid; gap: 18px; }
.scorebox { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.ring { --p: 0; width: 120px; height: 120px; border-radius: 50%; display: grid; place-items: center;
  background: conic-gradient(var(--accent) calc(var(--p) * 1%), #f0ebe3 0); }
.ring span { width: 94px; height: 94px; border-radius: 50%; background: #fff; display: grid; place-items: center; font-size: 34px; font-weight: 800; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.checks li { display: grid; grid-template-columns: 24px 1fr; gap: 10px; align-items: start; padding: 10px 12px; border-radius: 12px; background: #faf8f4; }
.checks li .ic { font-weight: 800; }
.checks li.pass .ic { color: var(--ok); } .checks li.fail .ic { color: var(--bad); }
.checks li small { display: block; color: var(--ink-2); }
.actions { counter-reset: a; list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.actions li { counter-increment: a; display: grid; grid-template-columns: 34px 1fr auto; gap: 12px; align-items: start; }
.actions li::before { content: counter(a); width: 30px; height: 30px; border-radius: 9px; background: var(--accent-soft); color: var(--bad); display: grid; place-items: center; font-weight: 800; }
.actions li p { margin: 2px 0 0; color: var(--ink-2); }
.pill { font-size: 12px; background: #eef2ff; color: var(--sky); padding: 3px 8px; border-radius: 99px; white-space: nowrap; }
.post { border: 1px dashed var(--line); border-radius: 14px; padding: 14px; background: #fffdfa; }
.post .meta { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; color: var(--ink-2); margin-bottom: 6px; }
.post p { margin: 0; white-space: pre-wrap; }
.copy { border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 3px 9px; font: inherit; font-size: 12px; cursor: pointer; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; } .chip { background: #f3efe8; border-radius: 99px; padding: 6px 12px; font-size: 14px; }

/* pricing */
.price { display: flex; flex-direction: column; gap: 8px; position: relative; }
.price .amt { font-size: 34px; font-weight: 800; letter-spacing: -.02em; }
.price .amt small { font-size: 15px; font-weight: 600; color: var(--ink-2); }
.price.hot { border: 2px solid var(--accent); }
.badge { position: absolute; top: -12px; right: 16px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 99px; }
.founding { margin-top: 18px; display: flex; gap: 18px; align-items: center; justify-content: space-between; flex-wrap: wrap; background: var(--ink); color: #fff; border-radius: 20px; padding: 22px 24px; }
.founding p { margin: 4px 0 0; color: #c9cfe0; }

details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 700; }
details p { color: var(--ink-2); margin: 10px 0 0; }

footer { border-top: 1px solid var(--line); padding: 30px 0 60px; color: var(--ink-2); font-size: 14px; }
footer .wrap { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
footer a { color: var(--ink-2); }

.legal { max-width: 760px; } .legal h1 { font-size: 34px; } .legal h2 { font-size: 21px; margin-top: 28px; } .legal p, .legal li { color: #2b3550; }
.small { font-size: 13px; color: var(--ink-2); }