/* DisplayPilot 收款页样式
   色值、阴影、圆角全部取自 Site/style.css（拟态材质），只为 /buy 与 /claim 两个页面服务。
   没有外部字体、没有图标库、没有任何第三方请求。 */

:root {
  --canvas: #E2DED9; --surface: #F2EFEA; --sunken: #D2CEC7;
  --light: #FAF7F5; --dark: #B8B2A9;
  --ink: #26221E; --ink-strong: #3D3833; --ink-soft: #57514A;
  --hermes: #F37021; --hermes-deep: #B8480F; --hermes-link: #9A3C0E;
  --hermes-soft: #FBD9C4; --hermes-wash: #FDF0E8;
  --raise-sm: 2px 2px 1px var(--dark), -1.5px -1.5px .5px #fff,
              4px 4px 7px rgba(184,178,169,.30), -3px -3px 6px rgba(255,255,255,.55);
  --raise: 2.5px 2.5px 1px var(--dark), -2px -2px .5px #fff,
           8px 10px 14px rgba(184,178,169,.32), -6px -6px 10px rgba(255,255,255,.55);
  --raise-lg: 3px 3px 1px var(--dark), -2.5px -2.5px .5px #fff,
              10px 12px 16px rgba(184,178,169,.32), -7px -7px 12px rgba(255,255,255,.55);
  --sink-sm: inset 2px 2px 5px rgba(184,178,169,.85), inset -2px -2px 5px rgba(255,255,255,.9);
  --sink: inset 3px 3px 7px rgba(184,178,169,.85), inset -3px -3px 7px rgba(255,255,255,.9);
  --r-plate: 34px; --r-card: 26px; --r-ctl: 18px;
  --page: min(1000px, 100% - 2.5rem);
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: var(--canvas); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--canvas); color: var(--ink-strong);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
               "Helvetica Neue", Arial, sans-serif;
  font-size: 17px; line-height: 1.7; -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
h1, h2, h3 { margin: 0; color: var(--ink); }
h1 { font-size: clamp(1.9rem, 4.4vw, 2.9rem); font-weight: 700; letter-spacing: -.032em; line-height: 1.12; }
h2 { font-size: 1.2rem; font-weight: 680; letter-spacing: -.02em; }
p { margin: 0; }
a { color: var(--hermes-link); text-underline-offset: 3px; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
:focus-visible { outline: 2px solid var(--hermes-deep); outline-offset: 3px; border-radius: 6px; }
.wrap { width: var(--page); margin-inline: auto; }
.tid { font-variant-numeric: tabular-nums; }

.neu { position: relative; }
.neu::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(135deg, #fff 0, rgba(255,255,255,.9) 18%, rgba(255,255,255,0) 35%,
              rgba(255,255,255,0) 65%, rgba(184,178,169,.85) 85%, #B8B2A9 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
}
.plate { background: var(--surface); border-radius: var(--r-plate); box-shadow: var(--raise-lg); }
.card { background: var(--surface); border-radius: var(--r-card); box-shadow: var(--raise); }
.sunk { background: var(--sunken); border-radius: var(--r-card); box-shadow: var(--sink); }

.nav {
  position: sticky; top: 0; z-index: 40; background: rgba(226,222,217,.78);
  -webkit-backdrop-filter: saturate(180%) blur(18px); backdrop-filter: saturate(180%) blur(18px);
}
.nav-in { display: flex; align-items: center; gap: 1rem; height: 52px; }
.brand { display: flex; align-items: center; gap: .5rem; text-decoration: none; color: var(--ink); font-weight: 650; }
.brand img { width: 24px; height: 24px; border-radius: 6px; box-shadow: var(--raise-sm); }
.nav-links { margin-left: auto; display: flex; gap: 1.2rem; }
.nav-links a { color: var(--ink-strong); text-decoration: none; font-size: .86rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .78rem 1.5rem; border: 0; border-radius: var(--r-ctl); cursor: pointer;
  font: inherit; font-weight: 640; letter-spacing: -.012em; text-decoration: none;
}
.btn-primary { color: #fff; background: var(--hermes-deep); box-shadow: var(--raise-sm), inset 0 1px 0 rgba(255,255,255,.28); }
.btn-primary:hover { background: #A03E0C; }
.btn-primary:disabled { opacity: .55; cursor: progress; }
.btn-ghost { color: var(--ink); background: var(--surface); box-shadow: var(--raise-sm); }
.btn-ghost:hover { box-shadow: var(--raise); }
.btn:active { transform: translateY(1px); }

.page { padding: clamp(2.2rem, 5vw, 3.6rem) 0 4rem; }
.lede { margin-top: 1rem; max-width: 46rem; color: var(--ink-soft); font-size: 1.05rem; }
.muted { color: var(--ink-soft); font-size: .9rem; }
.stack { display: grid; gap: 1.1rem; margin-top: 2rem; }
.step { padding: 1.4rem 1.5rem 1.6rem; }
.step-head { display: flex; align-items: baseline; gap: .7rem; }
.step-num { font-size: .78rem; font-weight: 700; letter-spacing: .09em; color: var(--hermes-link); text-transform: uppercase; }
.grid-pay { display: grid; grid-template-columns: 260px 1fr; gap: 1.6rem; align-items: start; margin-top: 1rem; }
.qr-box { padding: 14px; border-radius: var(--r-card); background: var(--light); box-shadow: var(--raise); }
.qr-box svg { width: 100%; height: auto; }
.qr-cap { margin-top: .7rem; font-size: .8rem; color: var(--ink-soft); text-align: center; }
.fields { display: grid; gap: .9rem; }
.field label { display: block; font-size: .78rem; font-weight: 650; letter-spacing: .07em; color: var(--ink-soft); text-transform: uppercase; }
.field-row { display: flex; gap: .5rem; align-items: stretch; }
.field-val {
  flex: 1; min-width: 0; padding: .7rem .9rem; border-radius: var(--r-ctl);
  background: var(--sunken); box-shadow: var(--sink-sm);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .95rem;
  word-break: break-all; user-select: all;
}
.amount { font-size: 1.45rem; font-weight: 700; letter-spacing: -.02em; }
.copy { flex: none; padding: .7rem 1rem; border: 0; border-radius: var(--r-ctl); cursor: pointer; font: inherit; font-size: .88rem; background: var(--surface); box-shadow: var(--raise-sm); }
.copy:hover { box-shadow: var(--raise); }
.seg { display: inline-flex; gap: .35rem; padding: .3rem; border-radius: 14px; background: var(--sunken); box-shadow: var(--sink-sm); }
.seg button { border: 0; background: transparent; font: inherit; font-size: .82rem; padding: .35rem .8rem; border-radius: 10px; cursor: pointer; color: var(--ink-soft); }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: var(--raise-sm); }

.warn {
  margin-top: 1.1rem; padding: 1rem 1.15rem; border-radius: var(--r-ctl);
  border-left: 3px solid var(--hermes); background: var(--canvas);
  color: var(--ink-strong); font-size: .93rem; line-height: 1.72;
}
.warn strong { color: var(--ink); }
.warn.big { border-left-width: 5px; background: var(--hermes-wash); }
.badge { display: inline-block; padding: .12rem .5rem; border-radius: 999px; background: var(--hermes-soft); color: #6b2b09; font-size: .78rem; font-weight: 650; }
.state { margin-top: .8rem; font-size: .95rem; color: var(--ink-soft); }
.state.ok { color: #1f6b2f; font-weight: 600; }
.state.err { color: #9A3C0E; font-weight: 600; }
.code-box {
  margin-top: .7rem; padding: 1rem 1.1rem; border-radius: var(--r-ctl);
  background: var(--sunken); box-shadow: var(--sink);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 1rem;
  word-break: break-all; user-select: all;
}
.code-box.big { font-size: 1.15rem; font-weight: 700; letter-spacing: .12em; }
.notices { margin: 1.1rem 0 0; padding-left: 1.2rem; color: var(--ink-soft); font-size: .88rem; line-height: 1.75; }
.notices li + li { margin-top: .3rem; }
footer { padding: 2.5rem 0 3.5rem; text-align: center; }
.foot-links { display: flex; flex-wrap: wrap; gap: 1.2rem; justify-content: center; }
.foot-links a { color: var(--ink-strong); text-decoration: none; font-size: .88rem; }
.foot-note { margin-top: .9rem; color: var(--ink-soft); font-size: .82rem; }
form.claim-form { display: flex; gap: .6rem; flex-wrap: wrap; align-items: stretch; margin-top: 1rem; }
form.claim-form input {
  flex: 1; min-width: 12rem; padding: .8rem 1rem; border: 0; border-radius: var(--r-ctl);
  background: var(--sunken); box-shadow: var(--sink-sm); font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 1.15rem;
  letter-spacing: .22em; text-transform: uppercase;
}
@media (max-width: 720px) {
  .grid-pay { grid-template-columns: 1fr; }
  .qr-box { max-width: 260px; margin-inline: auto; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .btn:active, .copy:active { transform: none; }
}
/* ── chain / token selector ── */
.chain-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .7rem; margin-top: 1rem; }
.chain-btn {
  display: flex; flex-direction: column; gap: .3rem; text-align: left;
  padding: .85rem 1rem; border: 0; border-radius: var(--r-ctl); cursor: pointer;
  background: var(--surface); box-shadow: var(--raise-sm); font: inherit; color: var(--ink-strong);
}
.chain-btn:hover { box-shadow: var(--raise); }
.chain-btn.is-active { background: var(--hermes-wash); box-shadow: var(--raise), inset 0 0 0 2px var(--hermes-deep); }
.chain-name { font-weight: 680; font-size: 1rem; color: var(--ink); }
.chain-fee { font-size: .78rem; color: var(--ink-soft); line-height: 1.5; }
.token-list { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.token-btn {
  padding: .5rem .95rem; border: 0; border-radius: 999px; cursor: pointer;
  background: var(--sunken); box-shadow: var(--sink-sm); font: inherit; font-size: .86rem; color: var(--ink-soft);
}
.token-btn.is-active { background: var(--hermes-deep); color: #fff; box-shadow: var(--raise-sm); }
.net-badge {
  display: inline-block; margin-top: .7rem; padding: .4rem .9rem; border-radius: 999px;
  background: var(--hermes-deep); color: #fff; font-weight: 700; font-size: .92rem; letter-spacing: -.01em;
}

/* 间距工具类：替代内联 style，让 CSP 的 style-src 'self' 不再拦截自己的样式 */
.mt-3 { margin-top: .3rem; }
.mt-6 { margin-top: .6rem; }
.mt-7 { margin-top: .7rem; }
.mt-8 { margin-top: .8rem; }
.mt-9 { margin-top: .9rem; }
.mt-10 { margin-top: 1rem; }
.mt-11 { margin-top: 1.1rem; }
.actions-inline { margin-top: .9rem; display: flex; gap: .6rem; flex-wrap: wrap; }
.self-center { align-self: center; }

/* 语言切换（购买页）。放在导航栏内，视觉上与其他链接一致。 */
.lang-switch { display: inline-flex; gap: .5rem; align-items: center; font-size: .82rem; }
.lang-switch a { color: var(--ink-soft); text-decoration: none; padding: .15rem .35rem; border-radius: 6px; }
.lang-switch a[aria-current="true"] { color: var(--ink); background: var(--sunken); font-weight: 600; }
.lang-switch a:hover { color: var(--ink); }