/* 付款页：Crenel，冷峻克制的深色（老板 2026-10-21：只做深色、参照获奖站、去说明性文案、加高光）。
   全黑底、细线；唯一的装饰是字标下 1 像素的城垛线。高光只做三处：字标的金属渐变、卡片上沿的一道反光、选中项的冷光描边。
   字体见 /static/fonts/README.txt；中文走系统字体。 */

:root {
  --black: #000;
  --panel: #070707;
  --hair: #1c1c1c;
  --hair-2: #2b2b2b;
  --fg: #ececec;
  --fg-2: #b4b4b4;
  --dim: #767676;
  --faint: #4d4d4d;
  --glint: rgba(255, 255, 255, .42);
  --warn: #d9b38c;
  --sans: 'Geist', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
  --mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  background: var(--black); color: var(--fg);
  font: 300 15px/1.7 var(--sans); letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}
body::before {   /* 顶上一束极淡的光，只照到页眉和金额 */
  content: ""; position: fixed; left: 50%; top: -220px; width: 1100px; height: 560px; transform: translateX(-50%);
  background: radial-gradient(ellipse 34% 52% at 50% 0%, rgba(255, 255, 255, .075), transparent 72%);
  pointer-events: none; z-index: 0;
}
body > * { position: relative; z-index: 1; }
a { color: var(--fg); text-decoration: none; }
button { font: inherit; color: inherit; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
:focus-visible { outline: 1px solid var(--fg-2); outline-offset: 3px; }

.wrap {
  width: 100%; max-width: 480px; margin: 0 auto;
  padding-left: max(18px, env(safe-area-inset-left, 0px));
  padding-right: max(18px, env(safe-area-inset-right, 0px));
}

/* ---------- 页眉 ---------- */
.site-header .wrap { max-width: 1080px; display: flex; align-items: center; justify-content: space-between; padding-block: 22px; }
.wordmark, .footer-wordmark, .hero-mark {
  text-transform: uppercase; letter-spacing: .6em;
  background: linear-gradient(100deg, #8d8d8d 0%, #f4f4f4 38%, #9a9a9a 62%, #e2e2e2 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.wordmark { font: 400 13px/1 var(--sans); letter-spacing: .6em; padding-block: 6px; }
.header-right { display: flex; align-items: center; gap: 14px; }
.lang-switch {
  background: none; border: 0; padding: 6px 0; cursor: pointer;
  font: 400 12px/1 var(--mono); letter-spacing: .08em; color: var(--dim);
}
.lang-switch:hover { color: var(--fg); }

/* ---------- 订单摘要 ---------- */
#app { flex: 1; display: grid; gap: 14px; align-content: start; padding-block: 40px 56px; }
.loading { color: var(--dim); text-align: center; padding-block: 80px; font-size: 13px; letter-spacing: .06em; }
.loading.err { color: var(--fg-2); }

.head { text-align: center; display: grid; gap: 6px; padding-bottom: 18px; }
.label {
  margin: 0; font: 400 10px/1.4 var(--mono); letter-spacing: .24em; text-transform: uppercase; color: var(--faint);
}
.payto b { font-weight: 400; color: var(--fg-2); letter-spacing: .24em; }
.testtag { margin-left: 10px; padding: 2px 7px; border: 1px solid var(--warn); border-radius: 2px; color: var(--warn); letter-spacing: .2em; }
.item { margin: 4px 0 0; color: var(--fg-2); font-size: 14px; }
.amount { margin: 10px 0 0; display: flex; align-items: baseline; justify-content: center; gap: 10px; }
.amount .num {
  font: 200 clamp(40px, 11vw, 56px)/1 var(--sans); letter-spacing: -.02em; font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, #ffffff 0%, #d4d4d4 55%, #8f8f8f 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.amount .cur { font: 400 12px/1 var(--mono); letter-spacing: .2em; color: var(--dim); }
.meta { margin: 12px 0 0; display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; font-size: 12px; color: var(--dim); }
.meta .no { margin-left: 8px; color: var(--fg-2); letter-spacing: .08em; }
.meta .left { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.meta .left.low { color: var(--warn); }
.gauge { height: 1px; background: var(--hair); margin: 18px auto 0; width: 100%; max-width: 220px; overflow: hidden; }
.gauge .fill { display: block; height: 100%; background: linear-gradient(90deg, transparent, var(--fg) 40%, var(--fg)); transform-origin: left; transition: transform 1s linear; }

/* ---------- 面板：细线框，上沿一道反光 ---------- */
.block { display: grid; gap: 12px; }
.card {
  position: relative; border: 1px solid var(--hair); border-radius: 6px; padding: 22px 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .028), rgba(255, 255, 255, 0) 42%), var(--panel);
  display: grid; gap: 22px;
}
.card::before {
  content: ""; position: absolute; left: 12%; right: 12%; top: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--glint), transparent);
}
.h { margin: 0 0 4px; font: 400 10px/1.4 var(--mono); letter-spacing: .24em; text-transform: uppercase; color: var(--faint); }
.note { margin: 0; font-size: 12px; line-height: 1.7; color: var(--dim); }
.note.err { color: var(--warn); }

/* 币种 */
.toggle { display: grid; grid-template-columns: repeat(auto-fit, minmax(0, 1fr)); gap: 10px; }
.toggle button {
  display: flex; align-items: center; justify-content: center; gap: 10px; cursor: pointer;
  padding: 14px 12px; background: transparent; border: 1px solid var(--hair); border-radius: 6px;
  font: 400 13px/1 var(--sans); letter-spacing: .22em; color: var(--fg-2);
  transition: border-color .2s, color .2s, box-shadow .2s;
}
.toggle button img { width: 20px; height: 20px; border-radius: 50%; filter: grayscale(1); opacity: .55; transition: filter .2s, opacity .2s; }
.toggle button[aria-pressed="true"] { border-color: var(--fg-2); color: var(--fg); box-shadow: 0 0 0 1px rgba(255, 255, 255, .04), 0 0 24px -8px rgba(255, 255, 255, .35); }
.toggle button[aria-pressed="true"] img, .toggle button:hover img { filter: none; opacity: 1; }

/* 网络 */
.nets { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
@media (max-width: 440px) { .nets { grid-template-columns: 1fr; } }
.net {
  width: 100%; display: grid; grid-template-columns: 22px minmax(0, 1fr) auto; gap: 12px; align-items: center; cursor: pointer;
  padding: 12px 14px; background: transparent; border: 1px solid var(--hair); border-radius: 6px; text-align: left;
  font-size: 13px; color: var(--fg-2); transition: border-color .2s, color .2s, box-shadow .2s;
}
.net:hover { border-color: var(--hair-2); color: var(--fg); box-shadow: 0 0 22px -10px rgba(255, 255, 255, .35); }
.net .n { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.net .arr { display: none; }
.logo { width: 22px; height: 22px; border-radius: 50%; flex: none; display: block; }
.net .logo { filter: grayscale(1) brightness(.9); opacity: .6; transition: filter .2s, opacity .2s; }
.net:hover .logo { filter: none; opacity: 1; }
.logo.ph { display: grid; place-items: center; background: var(--hair-2); color: var(--fg); font: 500 11px/1 var(--sans); }
.std { font: 300 11px/1.2 var(--mono); letter-spacing: .04em; color: var(--faint); display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.fee { color: var(--dim); }

/* ---------- 付款卡片 ---------- */
.row { display: grid; gap: 10px; min-width: 0; }
.line { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.big { margin: 0; display: flex; align-items: baseline; gap: 8px; }
.big .num { font: 300 26px/1 var(--mono); letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.big .cur { font: 400 11px/1 var(--mono); letter-spacing: .2em; color: var(--dim); }
.feeline, .partial { margin: 0; font-size: 12px; color: var(--fg-2); }
.partial { color: var(--warn); }
.atleast { margin: 0; font-size: 12px; color: var(--dim); line-height: 1.7; }
.atleast b { display: block; font-weight: 400; color: var(--fg); margin-bottom: 4px; }
.chain { margin: 0; display: flex; align-items: center; gap: 10px; font-size: 14px; }
.chain .std { flex-direction: row; margin-left: auto; }
.addrbox { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.addr { margin: 0; font: 300 14px/1.75 var(--mono); letter-spacing: .02em; color: var(--fg-2); word-break: break-all; display: flex; flex-wrap: wrap; column-gap: .55em; min-width: 0; }
.addr .tail { color: var(--fg); box-shadow: 0 1px 0 var(--fg); }
.qr { margin: 2px 0 0; width: 148px; max-width: 100%; background: #fff; padding: 10px; border-radius: 4px; }
.qr svg { display: block; width: 100%; height: auto; }
.contract { margin: 0; font-size: 11px; color: var(--faint); word-break: break-all; }

.btn {
  flex: none; cursor: pointer; background: transparent; border: 1px solid var(--hair-2); border-radius: 999px;
  padding: 7px 14px; font: 400 10px/1 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--fg-2);
  transition: border-color .2s, color .2s;
}
.btn:hover { border-color: var(--fg-2); color: var(--fg); }
.btn.done { border-color: var(--fg); color: var(--fg); }
.btn.go {
  justify-self: center; display: inline-block; margin-top: 6px; padding: 13px 26px;
  background: var(--fg); border-color: var(--fg); color: var(--black); font-weight: 400;
  box-shadow: 0 0 30px -10px rgba(255, 255, 255, .55);
}

.status { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 4px 2px 0; }
.waiting { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--dim); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--fg); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .15; } }
.link {
  background: none; border: 0; padding: 4px 0; cursor: pointer;
  font: 400 10px/1 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--dim);
}
.link:hover { color: var(--fg); }

/* ---------- 结局：印环 ---------- */
.end { justify-items: center; text-align: center; padding-block: 18px 6px; gap: 14px; }
.seal {
  width: 120px; height: 120px; border-radius: 50%; display: grid; place-content: center; gap: 6px;
  border: 1px solid var(--fg-2); box-shadow: inset 0 0 0 6px var(--black), inset 0 0 0 7px var(--hair-2), 0 0 40px -14px rgba(255, 255, 255, .5);
}
.seal span { display: block; font: 300 9px/1 var(--mono); letter-spacing: .3em; padding-left: .3em; color: var(--dim); }
.seal .s-mid { font: 300 13px/1 var(--sans); letter-spacing: .38em; padding-left: .38em; color: var(--fg); text-transform: uppercase; }
.seal.expired { border-color: var(--hair-2); box-shadow: inset 0 0 0 6px var(--black), inset 0 0 0 7px var(--hair); }
.seal.expired .s-mid { color: var(--dim); }
.end .h { font: 300 18px/1.4 var(--sans); letter-spacing: .06em; text-transform: none; color: var(--fg); margin: 6px 0 0; }
.meta2 { margin: 0; font-size: 12px; color: var(--dim); max-width: 40ch; }
.ext { font: 400 11px/1 var(--mono); letter-spacing: .12em; color: var(--fg-2); border-bottom: 1px solid var(--hair-2); padding-bottom: 3px; }
.ext:hover { color: var(--fg); border-color: var(--fg-2); }
.return { margin: 6px 0 0; font-size: 12px; color: var(--dim); }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--hair); padding-block: 26px 30px; }
.site-footer .wrap { max-width: 1080px; display: flex; justify-content: space-between; align-items: center; gap: 12px 24px; flex-wrap: wrap; }
.footer-wordmark { font: 400 11px/1 var(--sans); letter-spacing: .6em; }
.site-footer p, .site-footer a.mail { margin: 0; font: 300 11px/1.6 var(--mono); letter-spacing: .06em; color: var(--faint); }
.site-footer a.mail:hover { color: var(--fg-2); }
.footer-links { display: flex; gap: 22px; }

/* ---------- 首页 ---------- */
body.home main { flex: 1; display: grid; place-content: center; justify-items: center; gap: 26px; padding: 12vh 18px; text-align: center; }
.hero-mark { margin: 0 0 0 .62em; font: 200 clamp(30px, 8vw, 54px)/1 var(--sans); letter-spacing: .62em; }
.battle { display: block; width: 240px; max-width: 70vw; height: 14px; }
.battle path { fill: none; stroke: url(#glint); stroke-width: 1; }
.hero-sub { margin: 0; font: 400 10px/1 var(--mono); letter-spacing: .32em; text-transform: uppercase; color: var(--faint); }

@media (prefers-reduced-motion: reduce) {
  .dot { animation: none; }
  .gauge .fill { transition: none; }
}