/* 3.0 公开页面（合规工具、存证核验、关于我们）共用样式；与首页、服务方案页风格一致 */
:root { --ink: #14151C; --ink-2: rgba(20,21,28,.62); --ink-3: rgba(20,21,28,.42); --ink-4: rgba(20,21,28,.08); --ink-5: rgba(20,21,28,.04);
  --bg: #F7F7F9; --black: #06111A; --blue: #3E6BFF; --violet: #7C6CF2; --ok: #24785A; --ok-bg: #E6F4EE; --warn: #A06A0E; --warn-bg: #FFF4DC;
  --bad: #B4403A; --bad-bg: #FBEEED; --ease: cubic-bezier(.2,.7,.2,1); --r: 20px; --r-lg: 28px;
  --sh-1: 0 1px 2px rgba(20,21,28,.04), 0 8px 24px -12px rgba(30,40,100,.14);
  --font: "PingFang SC", -apple-system, BlinkMacSystemFont, "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 15px/1.75 var(--font); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 max(24px, env(safe-area-inset-right)) 0 max(24px, env(safe-area-inset-left)); }
header { position: sticky; top: 0; z-index: 20; background: rgba(247,247,249,.82); backdrop-filter: saturate(1.6) blur(20px); -webkit-backdrop-filter: saturate(1.6) blur(20px); box-shadow: 0 1px 0 var(--ink-4); }
.bar { display: flex; align-items: center; gap: 18px; height: 60px; }
.brand .wx-mark { font-size: 20px; color: var(--ink); } .spacer { flex: 1; }
.nav { display: flex; gap: 2px; flex-wrap: wrap; } .nav a { font-size: 14px; color: var(--ink-2); padding: 6px 12px; border-radius: 999px; }
.nav a:hover, .nav a.on { background: var(--ink-5); color: var(--ink); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 40px; padding: 0 18px; border-radius: 999px; font: 500 14px var(--font); border: 0; cursor: pointer; }
.btn.dark { background: var(--black); color: #fff; } .btn.light { background: #fff; box-shadow: inset 0 0 0 1px var(--ink-4); color: var(--ink); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.crumbs { font-size: 13px; color: var(--ink-3); margin: 32px 0 14px; }
h1 { font-size: clamp(32px, 4.6vw, 54px); font-weight: 500; letter-spacing: -.04em; line-height: 1.14; margin: 10px 0 14px; }
h1 .dim, h2 .dim { color: rgba(20,21,28,.32); }
h2 { font-size: clamp(24px, 2.8vw, 32px); font-weight: 500; letter-spacing: -.03em; margin: 0 0 6px; }
.lead { font-size: 17px; color: var(--ink-2); max-width: 680px; margin: 0 0 18px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-2); background: #fff; padding: 6px 14px; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--ink-4); }
.eyebrow i { width: 8px; height: 8px; border-radius: 50%; background: linear-gradient(135deg, var(--blue), var(--violet)); }
section { margin: 0 0 64px; scroll-margin-top: 80px; }
.card { background: #fff; border-radius: var(--r-lg); box-shadow: inset 0 0 0 1px var(--ink-4); padding: 26px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; } .grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.form { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; align-items: end; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--ink-2); }
.form .wide { grid-column: span 2; } .form .full { grid-column: 1 / -1; }
input[type=text], input[type=search], select, textarea { font: 15px var(--font); color: var(--ink); background: var(--bg); border: 1px solid var(--ink-4); border-radius: 14px; padding: 10px 14px; outline: none; width: 100%; }
input:focus, select:focus, textarea:focus { border-color: var(--blue); background: #fff; }
.sugg { position: relative; } .sugg ul { position: absolute; z-index: 5; left: 0; right: 0; top: 100%; margin: 4px 0 0; padding: 6px; list-style: none; background: #fff; border-radius: 14px; box-shadow: var(--sh-1); max-height: 260px; overflow: auto; }
.sugg li { padding: 8px 10px; border-radius: 10px; cursor: pointer; font-size: 14px; } .sugg li:hover { background: var(--ink-5); } .sugg li small { color: var(--ink-3); margin-left: 6px; }
.lights { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 16px 0; }
.lights > div { border-radius: 18px; padding: 14px 16px; } .lights b { display: block; margin-bottom: 6px; } .lights span { display: block; font-size: 14px; line-height: 1.8; }
.lights .ok { background: var(--ok-bg); } .lights .warn { background: var(--warn-bg); } .lights .no { background: var(--bad-bg); }
.kv { display: grid; grid-template-columns: 110px 1fr; gap: 6px 14px; font-size: 14px; line-height: 1.8; margin-top: 8px; } .kv dt { color: var(--ink-2); } .kv dd { margin: 0; }
.note { font-size: 13px; color: var(--ink-2); line-height: 1.8; }
.tag { display: inline-block; font-size: 12px; border-radius: 999px; padding: 2px 10px; background: var(--ok-bg); color: var(--ok); vertical-align: middle; }
.tag.warn { background: var(--warn-bg); color: var(--warn); } .tag.bad { background: var(--bad-bg); color: var(--bad); }
.uses { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px 18px; margin: 10px 0; }
.uses label { display: flex; gap: 8px; align-items: center; font-size: 14px; color: var(--ink); } .uses label.off { color: var(--ink-3); }
.uses input[type=text] { padding: 4px 10px; font-size: 13px; border-radius: 10px; width: 120px; }
pre.stmt { white-space: pre-wrap; font: 15px/1.9 var(--font); background: var(--bg); border-radius: 16px; padding: 16px 18px; margin: 12px 0; }
.warns div { background: var(--warn-bg); color: #6B4E1C; border-radius: 12px; padding: 8px 12px; font-size: 14px; margin-bottom: 8px; }
.trust4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.trust4 div { background: #fff; border-radius: 20px; padding: 16px 18px; box-shadow: inset 0 0 0 1px var(--ink-4); }
.trust4 b { display: block; font-size: 16px; font-weight: 600; margin-bottom: 4px; } .trust4 span { font-size: 13px; color: var(--ink-2); line-height: 1.7; }
.result { margin-top: 18px; } .ok-big { color: var(--ok); } .bad-big { color: var(--bad); }
.mono { font-family: Menlo, Consolas, monospace; font-size: 13px; word-break: break-all; }
.drop { border: 2px dashed var(--ink-4); border-radius: 18px; padding: 22px; text-align: center; color: var(--ink-2); cursor: pointer; }
.drop.on { border-color: var(--blue); background: #fff; }
footer { padding: 36px 0 48px; color: var(--ink-3); font-size: 13px; border-top: 1px solid var(--ink-4); margin-top: 40px; }
footer .row { display: flex; flex-wrap: wrap; gap: 6px 18px; } footer a:hover { color: var(--ink); }
footer .quals { margin-top: 10px; line-height: 1.9; } footer .quals span { margin-right: 14px; white-space: nowrap; }
@media (max-width: 900px) { .grid4, .trust4 { grid-template-columns: repeat(2, 1fr); } .form { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .grid2, .lights, .uses { grid-template-columns: 1fr; } .form { grid-template-columns: 1fr; } .form .wide { grid-column: auto; }
  .nav { display: none; } .kv { grid-template-columns: 1fr; } }