/* 极简黑白风格：中性灰阶 + 胶囊按钮 + 细边框卡片 */
:root {
  --bg: #ffffff; --card: #ffffff; --text: #0d0d0d; --text-2: #5d5d5d; --muted: #8f8f8f;
  --line: #e5e5e5; --soft: #f4f4f4; --hover: #ececec;
  --primary: #0d0d0d; --primary-h: #2f2f2f; --on-primary: #ffffff;
  --accent: #10a37f; --danger: #e02e2a; --warn: #d97706; --info: #2563eb;
  --radius: 16px;
  --font: ui-sans-serif, -apple-system, system-ui, "Segoe UI", Helvetica, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #212121; --card: #212121; --text: #ececec; --text-2: #b4b4b4; --muted: #8f8f8f;
    --line: #3a3a3a; --soft: #2f2f2f; --hover: #383838;
    --primary: #ffffff; --primary-h: #d9d9d9; --on-primary: #0d0d0d;
  }
}
* { box-sizing: border-box; }
/* 保证 hidden 属性始终生效（否则会被 display:flex/grid 等样式覆盖） */
[hidden] { display: none !important; }
html { -webkit-font-smoothing: antialiased; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.6 var(--font); }
a { color: inherit; }
.wrap { max-width: 720px; margin: 0 auto; padding: 24px 16px 64px; }
.wrap.wide { max-width: 1200px; }
h1 { font-size: 24px; font-weight: 600; margin: 8px 0 20px; letter-spacing: -.01em; }
h2 { font-size: 17px; font-weight: 600; margin: 0 0 12px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 16px; }
.muted { color: var(--muted); font-size: 13px; }

button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid transparent; background: var(--primary); color: var(--on-primary);
  padding: 10px 20px; border-radius: 999px; font: 500 15px/1.4 var(--font); cursor: pointer; text-decoration: none;
  transition: background .15s, border-color .15s, opacity .15s;
}
button:hover { background: var(--primary-h); }
button:disabled { opacity: .35; cursor: not-allowed; }
button.ghost { background: transparent; color: var(--text); border-color: var(--line); }
button.ghost:hover { background: var(--soft); }
button.danger { background: var(--danger); color: #fff; }
button.sm { padding: 4px 12px; font-size: 13px; }
.block { width: 100%; }

textarea, input, select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--bg); color: var(--text); font: inherit; outline: none; transition: border-color .15s;
}
textarea:focus, input:focus, select:focus { border-color: var(--text-2); }
textarea { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 13px; resize: vertical; }

.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row > * { flex: 1; }
.center { text-align: center; }
.qr img { width: 232px; height: 232px; border-radius: 12px; background: #fff; padding: 10px; border: 1px solid var(--line); }
.status { font-size: 22px; font-weight: 600; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; background: var(--soft); color: var(--text-2); white-space: nowrap; }
.s-SUCCESS { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); }
.s-FAILED, .s-EXPIRED { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); }
.s-MANUAL_REVIEW { background: color-mix(in srgb, var(--warn) 14%, transparent); color: var(--warn); }
.s-QUEUED, .s-REDEEMING, .s-PAID { background: color-mix(in srgb, var(--info) 12%, transparent); color: var(--info); }

.err { color: var(--danger); font-size: 14px; min-height: 20px; margin-top: 8px; }
.spinner { display: inline-block; width: 18px; height: 18px; border: 2px solid var(--line); border-top-color: var(--text); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -3px; margin-right: 8px; }
@keyframes spin { to { transform: rotate(360deg); } }
.progress { height: 8px; border-radius: 999px; background: var(--soft); overflow: hidden; }
.progress-bar { position: relative; height: 100%; width: 0; border-radius: inherit; background: var(--accent); transition: width .5s ease; overflow: hidden; }
.progress-bar::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent); transform: translateX(-100%); animation: shimmer 1.4s ease-in-out infinite; }
@keyframes shimmer { to { transform: translateX(100%); } }
@media (prefers-reduced-motion: reduce) { .progress-bar { transition: none; } .progress-bar::after { animation: none; } }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--text-2); font-weight: 500; }
.table-wrap { overflow-x: auto; }
.tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.tabs button { background: transparent; color: var(--text); border-color: var(--line); }
.tabs button.active { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; word-break: break-all; }
details summary { cursor: pointer; }

.steps { display: flex; justify-content: space-between; margin-bottom: 20px; font-size: 13px; color: var(--muted); }
.steps .on { color: var(--text); font-weight: 600; }

/* 顶部导航 */
.nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(180%) blur(12px); }
.nav .inner { max-width: 1120px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; }
.nav .logo { font-weight: 600; font-size: 17px; text-decoration: none; letter-spacing: -.01em; }
.nav a.link { font-size: 14px; color: var(--text-2); text-decoration: none; padding: 6px 12px; border-radius: 999px; }
.nav a.link:hover { background: var(--soft); color: var(--text); }

.footer { max-width: 1120px; margin: 0 auto; padding: 32px 20px 40px; font-size: 12px; color: var(--muted); text-align: center; }

/* ===== 站点外壳：渐变背景 + 透明导航（首页 / 我的订单 / 订单页共用）===== */
:root {
  --glow: radial-gradient(60% 55% at 0% 0%, #6884fa 0%, transparent 70%),
          radial-gradient(55% 50% at 50% 0%, #a6bcff 0%, transparent 75%),
          radial-gradient(55% 55% at 100% 0%, #bdb1ec 0%, transparent 72%);
  --wash: linear-gradient(180deg, #bfcbfd 0%, #d9defc 45%, #eef0fd 80%, transparent 100%);
  --shadow: 0 1px 2px rgba(16, 24, 64, .04), 0 8px 24px rgba(16, 24, 64, .06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --glow: radial-gradient(60% 55% at 0% 0%, rgba(104, 132, 250, .28) 0%, transparent 70%),
            radial-gradient(55% 50% at 50% 0%, rgba(166, 188, 255, .16) 0%, transparent 75%),
            radial-gradient(55% 55% at 100% 0%, rgba(189, 177, 236, .22) 0%, transparent 72%);
    --wash: linear-gradient(180deg, rgba(120, 140, 240, .12) 0%, transparent 100%);
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  }
}
.bg { position: absolute; inset: 0 0 auto 0; height: 1050px; background: var(--glow), var(--wash); pointer-events: none; z-index: -1;
      -webkit-mask-image: linear-gradient(#000 45%, transparent); mask-image: linear-gradient(#000 45%, transparent); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* 导航：透明浮在渐变上 */
.topnav { position: sticky; top: 0; z-index: 20; transition: background .2s, border-color .2s; border-bottom: 1px solid transparent; }
.topnav.scrolled { background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: saturate(180%) blur(14px); border-bottom-color: var(--line); }
.topnav .container { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.topnav .logo { font-size: 20px; font-weight: 600; text-decoration: none; letter-spacing: -.01em; }
.topnav nav { display: flex; gap: 28px; height: 100%; }
.topnav nav a { display: flex; align-items: center; font-size: 15px; color: var(--text-2); text-decoration: none; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.topnav nav a:hover { color: var(--text); }
.topnav nav a.active { color: var(--text); font-weight: 600; border-bottom-color: var(--text); }

.foot { text-align: center; color: var(--text-2); font-size: 15px; padding: 28px 0 36px; }
.page-title { text-align: center; padding: 40px 0 28px; }
.page-title h1 { font-size: 36px; font-weight: 600; line-height: 1.2; margin: 0 0 8px; letter-spacing: -.02em; }
.page-title p { margin: 0; color: var(--text-2); font-size: 16px; }
@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .topnav nav { gap: 16px; }
  .topnav nav a { font-size: 14px; }
  .topnav .logo { font-size: 17px; }
  .page-title { padding: 24px 0 16px; }
  .page-title h1 { font-size: 28px; }
}

/* ===== 客服入口（support.js）===== */
html:not([data-support="on"]) .needs-support { display: none !important; }
.support-fab { position: fixed; right: 20px; bottom: 20px; z-index: 30; padding: 11px 18px 11px 14px; font-size: 14px; box-shadow: 0 6px 20px rgba(0, 0, 0, .18); }
.support-dlg { width: min(420px, calc(100vw - 32px)); padding: 0; border: 1px solid var(--line); border-radius: 18px; background: var(--card); color: var(--text); box-shadow: 0 24px 60px rgba(0, 0, 0, .25); }
.support-dlg::backdrop { background: rgba(0, 0, 0, .4); backdrop-filter: blur(2px); }
.sd-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding: 22px 22px 14px; }
.sd-head h3 { margin: 0; font-size: 18px; font-weight: 600; }
.sd-head p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.sd-x { padding: 6px; background: transparent; color: var(--text-2); border-radius: 50%; }
.sd-x:hover { background: var(--soft); color: var(--text); }
.sd-x:focus:not(:focus-visible) { outline: none; }
.sd-order { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 0 22px 12px; padding: 10px 12px; border-radius: 12px; background: color-mix(in srgb, var(--info) 8%, transparent); font-size: 13px; color: var(--text-2); }
.sd-order code { font-size: 13px; color: var(--text); }
.sd-order .sd-copy { margin-left: auto; }
.sd-qr { display: flex; flex-direction: column; align-items: center; gap: 6px; margin: 0 22px 12px; font-size: 13px; color: var(--muted); }
.sd-qr img { width: 200px; height: auto; padding: 4px; border-radius: 12px; border: 1px solid var(--line); background: #fff; }
.sd-list { list-style: none; margin: 0; padding: 0 22px; }
.sd-list li { display: flex; align-items: center; gap: 12px; padding: 12px 0; }
.sd-list li + li { border-top: 1px solid var(--line); }
.sd-ic { flex: none; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; background: var(--soft); }
.sd-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.sd-label { font-size: 12px; color: var(--muted); }
.sd-val { font-weight: 500; overflow-wrap: anywhere; }
.sd-copy { flex: none; padding: 4px 12px; font-size: 13px; background: transparent; color: var(--text); border: 1px solid var(--line); border-radius: 999px; text-decoration: none; }
.sd-copy:hover { background: var(--soft); }
.sd-hours { display: flex; align-items: center; gap: 8px; margin-top: 6px; padding: 14px 22px 18px; border-top: 1px solid var(--line); font-size: 13px; color: var(--text-2); }
.sd-list:last-child { padding-bottom: 10px; }
@media (max-width: 600px) {
  .support-fab { right: 14px; bottom: 14px; padding: 12px; }
  .support-fab span { display: none; }
  .topnav nav [data-support] { display: none; }
  html[data-support="on"] .foot { padding-bottom: 80px; }
}

/* ===== Web3 深色主题（前台页面 body.w3；后台不受影响）===== */
body.w3 {
  color-scheme: dark;
  --bg: #07070e; --card: rgba(255, 255, 255, .035); --text: #f3f4f8; --text-2: #a6abbd; --muted: #6e7387;
  --line: rgba(255, 255, 255, .09); --soft: rgba(255, 255, 255, .06); --hover: rgba(255, 255, 255, .09);
  --primary: #ffffff; --primary-h: #e2e4ee; --on-primary: #0a0a12;
  --accent: #34d399; --info: #60a5fa; --warn: #fbbf24; --danger: #f87171;
  --v1: #10a37f; --v2: #3ee0a8; --v3: #0d9488;
  --grad: linear-gradient(120deg, var(--v1), var(--v2));
  --shadow: 0 1px 0 rgba(255, 255, 255, .04) inset, 0 20px 50px -20px rgba(0, 0, 0, .6);
  --glow: radial-gradient(40% 50% at 15% 0%, rgba(16, 163, 127, .45) 0%, transparent 70%),
          radial-gradient(35% 45% at 85% 5%, rgba(52, 211, 153, .30) 0%, transparent 70%),
          radial-gradient(30% 40% at 50% 30%, rgba(13, 148, 136, .12) 0%, transparent 70%);
  --wash: linear-gradient(transparent, transparent);
  background: var(--bg);
}
body.w3 .bg { height: 1100px;
  background:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px) 0 0 / 56px 56px,
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px) 0 0 / 56px 56px,
    var(--glow);
  -webkit-mask-image: radial-gradient(90% 70% at 50% 0%, #000 30%, transparent 80%); mask-image: radial-gradient(90% 70% at 50% 0%, #000 30%, transparent 80%); }
body.w3 .topnav.scrolled { background: rgba(7, 7, 14, .72); }
body.w3 .topnav .logo { display: inline-flex; align-items: center; gap: 10px; }
body.w3 .topnav .logo::before { content: ""; width: 22px; height: 22px; border-radius: 7px; background: var(--grad); box-shadow: 0 0 18px rgba(16, 163, 127, .6); }
body.w3 .topnav nav a.active { border-bottom-color: transparent; background: linear-gradient(var(--v1), var(--v2)) bottom / 100% 2px no-repeat; }
/* 玻璃卡片 */
body.w3 .panel, body.w3 .list, body.w3 .card { backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
body.w3 .support-dlg { background: #11111c; }
body.w3 .support-fab { background: var(--grad); color: #fff; box-shadow: 0 8px 28px rgba(16, 163, 127, .45); }
body.w3 .qr, body.w3 .sd-qr img { background: #fff; }
body.w3 textarea, body.w3 input, body.w3 select { background: rgba(0, 0, 0, .25); }
body.w3 .foot { color: var(--muted); font-size: 13px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }