/* ============================================================
   充值凭证 · 样式
   ============================================================ */
:root {
  --bg: #eef1f6;
  --card: #ffffff;
  --ink: #0f172a;
  --ink-2: #3f4a5c;
  --muted: #7c8798;
  --line: #e7ebf1;
  --line-2: #eff2f7;
  --brand: #3b6ef6;
  --brand-deep: #2a55cc;
  --ok: #0b9b6d;
  --ok-bg: #e9f8f2;
  --warn: #c2740a;
  --warn-bg: #fdf4e3;
  --bad: #d0342c;
  --bad-bg: #fdeceb;
  --radius: 18px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.page {
  min-height: 100vh;
  background:
    radial-gradient(900px 420px at 50% -140px, #ffffff 0%, rgba(255,255,255,0) 70%),
    var(--bg);
  padding: 28px 16px 56px;
}

.wrap { width: 100%; max-width: 880px; margin: 0 auto; }

/* ---------------- 顶栏 ---------------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding: 0 4px;
}

.brandbar { display: flex; align-items: center; gap: 10px; min-width: 0; }

.shop {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .2px;
  color: var(--ink);
  white-space: nowrap;
}

.shop-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(59,110,246,.14);
}

.crumb {
  font-size: 13px;
  color: var(--muted);
  padding-left: 10px;
  border-left: 1px solid #d9dfe8;
  white-space: nowrap;
}

.actions { display: flex; gap: 8px; }

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: transform .12s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn.ghost { background: #fff; border-color: #dfe5ee; color: var(--ink-2); }
.btn.ghost:hover { border-color: #cbd4e1; background: #fbfcfe; }
.btn.primary {
  background: linear-gradient(180deg, #1b2537, #0f172a);
  color: #fff;
  box-shadow: 0 8px 18px -10px rgba(15,23,42,.9);
}
.btn.primary:hover { background: linear-gradient(180deg, #232f45, #131c2e); }
.btn.mini { padding: 4px 9px; font-size: 12px; border-radius: 8px; }

/* ---------------- 凭证卡片 ---------------- */
.cert {
  position: relative;
  background: var(--card);
  border: 1px solid #e6eaf2;
  border-radius: var(--radius);
  box-shadow:
    0 1px 2px rgba(15,23,42,.04),
    0 28px 60px -34px rgba(15,23,42,.42);
  overflow: hidden;
  isolation: isolate;
}

.cert::before {
  /* 顶部品牌色细线 */
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), color-mix(in srgb, var(--brand) 35%, #ffffff));
  opacity: .95;
}

.wm {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='150'%3E%3Ctext x='10' y='80' fill='%230f172a' fill-opacity='0.028' font-family='sans-serif' font-size='15' font-weight='700' transform='rotate(-22 10 80)'%3E%E5%B7%B2%E6%A0%B8%E9%AA%8C%20%C2%B7%20%E4%B8%8D%E5%8F%AF%E7%AF%A1%E6%94%B9%3C/text%3E%3C/svg%3E");
  background-repeat: repeat;
}

.cert > *:not(.wm) { position: relative; z-index: 1; }

/* 头部 */
.cert-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 30px 20px;
}

.goods { display: flex; align-items: center; gap: 14px; min-width: 0; }

.logo {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 14px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .3px;
  box-shadow: 0 10px 22px -14px var(--brand-deep);
}

.goods-txt { min-width: 0; }

.goods-txt h1 {
  margin: 0 0 5px;
  font-size: 17px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -.1px;
}

.goods-txt p {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
  font-family: var(--mono);
  letter-spacing: .1px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px 7px 11px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .2px;
  white-space: nowrap;
}
.badge i {
  width: 7px; height: 7px; border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 18%, transparent);
}
.badge.success { color: var(--ok); background: var(--ok-bg); }
.badge.pending { color: var(--warn); background: var(--warn-bg); }
.badge.danger { color: var(--bad); background: var(--bad-bg); }
.badge.muted { color: var(--muted); background: #f1f4f8; }

/* 关键信息 */
.hero {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1.15fr;
  gap: 0;
  padding: 4px 30px 22px;
}
.hero-item { padding: 0 0 0 0; }
.hero-item + .hero-item { border-left: 1px solid var(--line-2); padding-left: 22px; }
.hero-item:not(:last-child) { padding-right: 22px; }
.hero-item label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 7px;
  letter-spacing: .2px;
}
.hero-item .val {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.2px;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 22px;
}
.hero-item .val.mono { font-family: var(--mono); font-size: 15.5px; letter-spacing: .3px; }
.hero-item .val em { font-style: normal; color: var(--brand); }

/* 撕口分割 */
.tear { position: relative; height: 26px; margin: 0 0 4px; }
.tear .dash {
  position: absolute;
  left: 22px; right: 22px; top: 50%;
  border-top: 1px dashed #dfe4ec;
}
.tear .notch {
  position: absolute;
  top: 50%;
  width: 18px; height: 18px;
  margin-top: -9px;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: inset 0 1px 2px rgba(15,23,42,.06);
}
.tear .notch.l { left: -9px; }
.tear .notch.r { right: -9px; }

/* 明细 */
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 36px;
  padding: 10px 30px 4px;
}
.pair {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-2);
  font-size: 13.5px;
}
.pair .k { color: var(--muted); white-space: nowrap; font-size: 13px; }
.pair .v {
  color: var(--ink);
  font-weight: 600;
  text-align: right;
  word-break: break-all;
}
.pair .v.mono { font-family: var(--mono); font-size: 13px; font-weight: 500; letter-spacing: .2px; }
.pair .v.sm { font-size: 12.5px; }

/* 时间轴 */
.timeline { padding: 22px 30px 6px; }
.timeline-title {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .2px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.timeline-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line-2);
}
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.step { position: relative; padding-right: 8px; }
.step .dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid #cfd7e3;
  margin-bottom: 9px;
  position: relative;
  z-index: 1;
}
.step::before {
  content: "";
  position: absolute;
  left: 9px; right: 0; top: 4px;
  height: 1px;
  background: #e4e9f1;
}
.step:last-child::before { display: none; }
.step.done .dot { background: var(--ok); border-color: var(--ok); }
.step.done::before { background: color-mix(in srgb, var(--ok) 35%, #e4e9f1); }
.step .lbl { font-size: 12.5px; font-weight: 600; color: var(--ink-2); }
.step .tm { font-size: 11.5px; color: var(--muted); font-family: var(--mono); margin-top: 3px; letter-spacing: -.1px; }

/* 防伪区 */
.proof {
  margin: 18px 30px 0;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    linear-gradient(180deg, #fbfcfe, #f7f9fc);
}
.qr {
  flex: 0 0 auto;
  width: 104px; height: 104px;
  background: #fff;
  border: 1px solid #e3e8f0;
  border-radius: 10px;
  padding: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qr svg { width: 100%; height: 100%; display: block; image-rendering: pixelated; }
.proof-main { min-width: 0; flex: 1; }
.proof-label { font-size: 12px; color: var(--muted); letter-spacing: .2px; margin-bottom: 6px; }
.verify-code {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 2.2px;
  color: var(--ink);
  margin-bottom: 9px;
}
.proof-note { font-size: 12px; line-height: 1.65; color: var(--ink-2); }
.proof-note b { color: var(--ink); font-weight: 600; }
.fp {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .3px;
  word-break: break-all;
}

/* 底部声明 */
.cert-foot {
  margin-top: 20px;
  padding: 16px 30px 20px;
  background: #fafbfd;
  border-top: 1px solid var(--line-2);
}
.declare {
  margin: 0 0 10px;
  font-size: 12px;
  line-height: 1.75;
  color: var(--ink-2);
}
.declare b { color: var(--ink); }
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  font-size: 11.5px;
  color: var(--muted);
  font-family: var(--mono);
}

/* 状态提示条 */
.notice {
  margin: 0 30px 16px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 12.5px;
  line-height: 1.6;
  display: flex;
  gap: 9px;
}
.notice.pending { background: var(--warn-bg); color: #8a5200; }
.notice.danger { background: var(--bad-bg); color: #97231d; }
.notice .ico { font-weight: 800; }

/* 页脚 */
.page-foot {
  margin: 20px auto 0;
  max-width: 880px;
  font-size: 12px;
  color: #96a0b0;
  text-align: center;
  line-height: 1.8;
}
.page-foot a { color: #6d7a8c; }

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translate(-50%, 16px);
  background: #101a2b;
  color: #fff;
  font-size: 13px;
  padding: 10px 16px;
  border-radius: 10px;
  opacity: 0;
  pointer-events: none;
  transition: all .22s ease;
  z-index: 99;
  box-shadow: 0 16px 40px -18px rgba(0,0,0,.6);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* 骨架 */
.skeleton { padding: 40px; }
.sk-line {
  height: 14px;
  border-radius: 7px;
  background: linear-gradient(90deg, #eef1f6 25%, #f6f8fb 37%, #eef1f6 63%);
  background-size: 400% 100%;
  animation: sk 1.3s ease infinite;
  margin-bottom: 12px;
}
@keyframes sk { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

/* 错误 */
.error-box {
  background: #fff;
  border: 1px solid #e6eaf2;
  border-radius: var(--radius);
  padding: 48px 32px;
  text-align: center;
  box-shadow: 0 24px 60px -40px rgba(15,23,42,.4);
}
.error-box .big { font-size: 34px; margin-bottom: 12px; }
.error-box h2 { margin: 0 0 8px; font-size: 17px; }
.error-box p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* ---------------- 入口页 ---------------- */
.hero-block { text-align: center; padding: 28px 8px 30px; }
.hero-block h1 { margin: 0 0 12px; font-size: 26px; letter-spacing: -.6px; }
.hero-block p { margin: 0 auto; max-width: 560px; color: var(--ink-2); font-size: 14px; line-height: 1.85; }

.card-list { display: grid; gap: 10px; margin-top: 8px; }
.row-card {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  background: #fff; border: 1px solid #e6eaf2; border-radius: 14px;
  padding: 15px 18px; text-decoration: none; color: inherit;
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.row-card:hover { border-color: #cfd9ea; transform: translateY(-1px); box-shadow: 0 14px 30px -24px rgba(15,23,42,.5); }
.row-card .t { font-weight: 650; font-size: 14px; margin-bottom: 4px; }
.row-card .s { font-size: 12px; color: var(--muted); font-family: var(--mono); }
.row-card .go { font-size: 12px; color: var(--brand); font-weight: 650; white-space: nowrap; }

.section-title { font-size: 13px; font-weight: 700; color: var(--ink-2); margin: 26px 4px 12px; letter-spacing: .2px; }

/* ---------------- 表单（管理台） ---------------- */
.panel { background: #fff; border: 1px solid #e6eaf2; border-radius: var(--radius); padding: 24px; box-shadow: 0 24px 60px -44px rgba(15,23,42,.4); }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12.5px; color: var(--ink-2); font-weight: 600; margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid #dfe5ee;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13.5px;
  font-family: inherit;
  color: var(--ink);
  background: #fdfdff;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field textarea:focus { border-color: #9db4f7; box-shadow: 0 0 0 3px rgba(59,110,246,.12); }
.field .hint { font-size: 11.5px; color: var(--muted); margin-top: 5px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 14px; }

.result { margin-top: 18px; display: none; }
.result.show { display: block; }
.result .link {
  display: block;
  font-family: var(--mono);
  font-size: 12.5px;
  background: #f6f8fc;
  border: 1px solid #e4e9f1;
  border-radius: 10px;
  padding: 11px 12px;
  word-break: break-all;
  color: #1f3a8a;
  margin-bottom: 10px;
}

/* ---------------- 验真页 ---------------- */
.verify-head { text-align: center; padding: 10px 0 22px; }
.verify-icon {
  width: 62px; height: 62px; border-radius: 50%;
  margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px; font-weight: 800;
}
.verify-icon.ok { background: var(--ok-bg); color: var(--ok); }
.verify-icon.bad { background: var(--bad-bg); color: var(--bad); }
.verify-head h1 { margin: 0 0 8px; font-size: 20px; letter-spacing: -.3px; }
.verify-head p { margin: 0; color: var(--muted); font-size: 13px; }
.check { display: flex; gap: 10px; align-items: flex-start; padding: 11px 0; border-bottom: 1px solid var(--line-2); font-size: 13px; }
.check .ic { flex: 0 0 auto; width: 18px; height: 18px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 800; color: #fff; margin-top: 1px; }
.check .ic.pass { background: var(--ok); }
.check .ic.fail { background: var(--bad); }
.check .txt { flex: 1; }
.check .txt b { display: block; font-weight: 600; margin-bottom: 2px; }
.check .txt span { color: var(--muted); font-size: 12px; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 640px) {
  body.page { padding: 16px 12px 44px; }
  .topbar { flex-wrap: wrap; gap: 10px; }
  .actions { width: 100%; }
  .actions .btn { flex: 1; }
  .cert-head { padding: 20px 18px 14px; flex-direction: column; align-items: flex-start; gap: 12px; }
  .goods { width: 100%; }
  .goods-txt h1 { font-size: 15.5px; }
  .hero { grid-template-columns: 1fr; padding: 0 18px 16px; gap: 14px; }
  .hero-item + .hero-item { border-left: 0; padding-left: 0; border-top: 1px solid var(--line-2); padding-top: 12px; }
  .hero-item:not(:last-child) { padding-right: 0; }
  .tear { margin: 0; }
  .tear .dash { left: 14px; right: 14px; }
  .grid { grid-template-columns: 1fr; padding: 8px 18px 0; gap: 0; }
  .timeline { padding: 18px 18px 4px; }
  .steps { grid-template-columns: 1fr; gap: 0; }
  .step { padding: 0 0 14px 22px; }
  .step .dot { position: absolute; left: 0; top: 3px; margin: 0; }
  .step::before { left: 4px; right: auto; top: 10px; bottom: 0; width: 1px; height: auto; }
  .proof { margin: 14px 18px 0; flex-direction: column; align-items: flex-start; }
  .cert-foot { padding: 14px 18px 18px; }
  .notice { margin: 0 18px; }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .hero-block h1 { font-size: 21px; }
}

/* ---------------- 打印 ---------------- */
@media print {
  @page { size: A4; margin: 12mm; }
  html, body {
    background: #fff !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  body.page { padding: 0; }
  .topbar, .page-foot, .toast, .no-print { display: none !important; }
  .wrap { max-width: none; }
  .cert {
    border: 1px solid #d9dfe9;
    border-radius: 10px;
    box-shadow: none !important;
    break-inside: avoid;
  }
  .wm { opacity: .9; }
  .tear .notch { display: none; }
}

/* ============================================================
   查询首页 / 管理台
   ============================================================ */
.hero-top { text-align: center; padding: 34px 10px 26px; }
.hero-top .kicker {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; font-weight: 650; letter-spacing: .4px;
  color: #3b6ef6; background: #eaf0ff; border-radius: 999px;
  padding: 5px 12px; margin-bottom: 16px;
}
.hero-top h1 { margin: 0 0 12px; font-size: 27px; letter-spacing: -.8px; line-height: 1.3; }
.hero-top p { margin: 0 auto; max-width: 520px; color: var(--ink-2); font-size: 13.5px; line-height: 1.9; }

.search-card {
  background: #fff; border: 1px solid #e6eaf2; border-radius: 18px;
  padding: 22px; max-width: 640px; margin: 0 auto;
  box-shadow: 0 30px 70px -46px rgba(15,23,42,.5);
}
.tabs {
  display: flex; gap: 4px; background: #f2f5fa; border-radius: 11px; padding: 4px; margin-bottom: 16px;
}
.tabs a {
  flex: 1; text-align: center; text-decoration: none; color: var(--ink-2);
  font-size: 13px; font-weight: 600; padding: 8px 0; border-radius: 8px;
  transition: background .15s ease, color .15s ease, box-shadow .15s ease;
}
.tabs a.on { background: #fff; color: var(--ink); box-shadow: 0 1px 3px rgba(15,23,42,.12); }

.search-row { display: flex; gap: 9px; }
.search-row input {
  flex: 1; min-width: 0;
  border: 1px solid #dfe5ee; border-radius: 11px;
  padding: 13px 14px; font-size: 15px; font-family: inherit; color: var(--ink);
  background: #fdfdff; outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.search-row input:focus { border-color: #9db4f7; box-shadow: 0 0 0 3px rgba(59,110,246,.13); }
.search-row .btn { padding: 0 22px; font-size: 14px; border-radius: 11px; }

.alert {
  margin-top: 14px; padding: 11px 14px; border-radius: 10px;
  font-size: 13px; line-height: 1.65;
  background: var(--bad-bg); color: #97231d;
}
.alert.info { background: #eef3ff; color: #1f3a8a; }

.tips { margin: 16px auto 0; max-width: 640px; font-size: 12px; color: var(--muted); line-height: 1.9; text-align: center; }

/* 账号多单列表 */
.pick-list { display: grid; gap: 9px; margin-top: 16px; }
.pick {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border: 1px solid #e6eaf2; border-radius: 12px; padding: 13px 15px;
  text-decoration: none; color: inherit; background: #fff;
  transition: border-color .15s ease, transform .15s ease;
}
.pick:hover { border-color: #cfd9ea; transform: translateY(-1px); }
.pick .t { font-size: 13.5px; font-weight: 650; margin-bottom: 3px; }
.pick .s { font-size: 11.5px; color: var(--muted); font-family: var(--mono); }
.pick .go { font-size: 12px; color: var(--brand); font-weight: 650; white-space: nowrap; }

/* 管理台表格 */
.admin-table { width: 100%; border-collapse: collapse; font-size: 12.5px; margin-top: 12px; }
.admin-table th, .admin-table td {
  text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line-2); vertical-align: middle;
}
.admin-table th { color: var(--muted); font-weight: 600; font-size: 12px; white-space: nowrap; }
.admin-table td.mono { font-family: var(--mono); font-size: 12px; }
.admin-table a { color: var(--brand); text-decoration: none; }

.badge-sm {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 650;
}
.badge-sm.success { background: var(--ok-bg); color: var(--ok); }
.badge-sm.pending { background: var(--warn-bg); color: var(--warn); }
.badge-sm.danger { background: var(--bad-bg); color: var(--bad); }
.badge-sm.muted { background: #f1f4f8; color: var(--muted); }

@media (max-width: 640px) {
  .hero-top { padding: 22px 6px 20px; }
  .hero-top h1 { font-size: 21px; }
  .search-card { padding: 16px; }
  .search-row { flex-direction: column; }
  .search-row .btn { padding: 12px 0; }
  .admin-table { display: block; overflow-x: auto; white-space: nowrap; }
}

/* 首页特性三栏 */
.feats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  max-width: 640px; margin: 26px auto 0;
}
.feat {
  background: #fff; border: 1px solid #e6eaf2; border-radius: 14px; padding: 16px;
}
.feat .ic {
  width: 30px; height: 30px; border-radius: 9px; display: flex; align-items: center; justify-content: center;
  background: #eef3ff; color: #3b6ef6; font-size: 15px; margin-bottom: 10px;
}
.feat h3 { margin: 0 0 5px; font-size: 13px; font-weight: 700; letter-spacing: -.1px; }
.feat p { margin: 0; font-size: 12px; line-height: 1.65; color: var(--muted); }
@media (max-width: 640px) {
  .feats { grid-template-columns: 1fr; gap: 9px; }
}

/* 小屏：时间轴改纵向（覆盖内联列数） */
@media (max-width: 640px) {
  .steps { grid-template-columns: 1fr !important; }
  .step { padding-bottom: 16px; }
  .cert-head .logo { height: 38px; font-size: 13px; }
}