:root {
  color-scheme: dark;
  --red: #ff2941;
  --yellow: #ffd600;
  --muted: #b6a6a8;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
html { min-width: 280px; background: #160204; }
body {
  margin: 0;
  min-height: 100vh;
  color: #fff4f5;
  background: radial-gradient(ellipse at 50% 43%, #4c0610 0, #2b0308 42%, #130203 100%);
}
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; cursor: pointer; }
button:focus-visible, a:focus-visible { outline: 3px solid #fff5a5; outline-offset: 5px; }
[hidden] { display: none !important; }
.page { width: min(440px, calc(100% - 48px)); margin: 0 auto; padding: 12px 0 24px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.wordmark { text-decoration: none; color: #fff0f3; font-size: 23px; font-weight: 900; letter-spacing: -1px; white-space: nowrap; }
.wordmark span { color: #ff405b; }
.language-control { position: relative; z-index: 2; }
.language-trigger { display: flex; align-items: center; gap: 5px; height: 31px; padding: 0 11px; border: 1px solid #786065; border-radius: 999px; background: #ffffff17; color: #fff; font-size: 12px; font-weight: 600; }
.language-trigger svg { fill: none; stroke: currentColor; stroke-width: 1.6; }
.caret { font-size: 10px; margin-left: 1px; }
.language-menu { position: absolute; right: 0; top: 40px; min-width: 148px; padding: 5px; background: #30171b; border: 1px solid #6a434a; border-radius: 12px; box-shadow: 0 10px 26px #0008; }
.language-menu button { display: flex; justify-content: space-between; gap: 12px; width: 100%; border: 0; border-radius: 7px; padding: 9px 10px; color: #fbe7eb; background: transparent; text-align: left; font-size: 13px; }
.language-menu button:hover { background: #ffffff0d; }
.language-menu button[aria-pressed="true"] { color: #ff7285; background: #ff294117; }
.language-menu button span { visibility: hidden; }
.language-menu button[aria-pressed="true"] span { visibility: visible; }
.demo-label { display: flex; justify-content: center; align-items: center; gap: 6px; margin: 16px 0 25px; color: #e4bcc2; font-size: 11px; line-height: 1.6; text-align: center; }
.status-dot { width: 5px; height: 5px; border-radius: 50%; background: #ff7588; flex: 0 0 5px; box-shadow: 0 0 8px #ff294180; }
.section-title { display: flex; justify-content: center; align-items: center; gap: 7px; margin: 0 0 19px; color: #e1d0d3; font-size: 17px; font-weight: 750; line-height: 1.3; }
.tag { display: inline-flex; align-items: center; justify-content: center; padding: 3px 8px; border-radius: 4px; color: white; font-size: 12px; font-weight: 800; letter-spacing: .2px; line-height: 1.1; }
.tag-purple { background: linear-gradient(110deg, #6e89f5, #8254b6); }
.tag-green { background: linear-gradient(110deg, #05b58f, #20d79b); }
.tag-pink { background: linear-gradient(110deg, #e484f2, #ff538c); }
.rate-card { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 92px; padding: 18px 20px 17px; border: 1px solid; border-radius: 16px; overflow: hidden; }
.rate-card + .rate-card { margin-top: 15px; }
.rate-card-special { border-color: #a31128; background: linear-gradient(100deg, #430710dd, #3d0710cc); }
.rate-card-global { border-color: var(--yellow); background: linear-gradient(105deg, #3b1904bb, #3e1209cc); }
.price { margin: 0 0 3px; font-size: 24px; line-height: 1.15; font-weight: 900; letter-spacing: -.4px; }
.price span { color: var(--red); }
.rate-caption { margin: 0; color: #c4b2b5; font-size: 12px; font-weight: 500; line-height: 1.5; }
.energy-amount { display: flex; flex-direction: column; align-items: flex-end; flex-shrink: 0; }
.energy-amount strong { color: var(--yellow); font-size: 19px; letter-spacing: -.4px; font-weight: 900; line-height: 1.1; }
.energy-amount > span { margin-top: 1px; color: #bba3a7; font-size: 11px; font-weight: 600; }
.corner-badge { position: absolute; top: 0; right: 0; padding: 5px 9px; border-radius: 0 0 0 10px; color: #fff; background: var(--red); font-size: 10px; font-weight: 800; }
.rate-card-global .corner-badge { background: var(--yellow); color: #2c1300; }
.address-card { margin-top: 30px; padding: 28px 20px 24px; border: 2px solid var(--red); border-radius: 21px; background: linear-gradient(150deg, #24080bdd, #130405ed 75%); box-shadow: 0 0 23px #ff234c31, inset 0 0 17px #ff294108; }
.address-card .section-title { margin-bottom: 17px; color: var(--red); letter-spacing: 1px; }
.address-display { display: flex; justify-content: center; align-items: center; min-height: 53px; width: calc(100% - 10px); margin: 0 auto; padding: 11px 8px; overflow: hidden; border: 1px dashed #907579; border-radius: 8px; background: #ffffff14; color: #f5e5e7; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: clamp(10px, 3.2vw, 14px); white-space: nowrap; user-select: all; }
.address-display mark { padding: 4px 3px; border-radius: 2px; background: #ffd60018; color: var(--yellow); font-weight: 900; border-bottom: 1px solid #d8b900; }
.copy-button { width: 100%; height: 46px; margin: 15px 0 0; padding: 0 12px; border: 1px solid #ff354c; border-radius: 999px; background: var(--red); color: #fff; font-size: 16px; font-weight: 800; box-shadow: 0 6px 17px #f91d465c; transition: background .18s, box-shadow .18s, transform .18s; }
.copy-button:hover { background: #ff4257; box-shadow: 0 6px 23px #f91d4678; transform: translateY(-1px); }
.copy-button:active { transform: translateY(1px); }
.copy-button.is-copied { background: #168969; border-color: #25b38b; box-shadow: 0 6px 17px #04ae7635; }
.address-hint { margin: 11px 0 0; color: #b1999e; font-size: 11px; line-height: 1.6; text-align: center; }
.copy-feedback { min-height: 16px; margin: 5px 0 -10px; color: #75e2bc; font-size: 11px; text-align: center; line-height: 1.45; }
.notice-card { margin-top: 30px; padding: 21px 20px 22px; border-left: 3px solid var(--yellow); border-radius: 12px; background: #100203d9; }
.notice-title { display: flex; align-items: center; gap: 12px; margin: 0 0 9px; color: var(--yellow); font-size: 16px; font-weight: 800; }
.notice-card ul { list-style: none; margin: 0; padding: 0; }
.notice-card li { position: relative; padding-left: 14px; color: #e4d3d6; font-size: 12px; line-height: 2.2; }
.notice-card li::before { content: ""; position: absolute; left: 0; top: 11px; width: 4px; height: 4px; border-radius: 50%; background: var(--red); }
.footer { display: flex; justify-content: center; align-items: center; gap: 7px; margin-top: 20px; padding: 12px 8px; border: 1px solid #b56a7723; border-radius: 12px; color: #b59aa0; background: #ffffff04; font-size: 10px; text-align: center; line-height: 1.5; }
.footer-mark { color: #ff5771; font-size: 14px; }
@media (max-width: 370px) {
  .page { width: calc(100% - 32px); }
  .wordmark { font-size: 20px; letter-spacing: -.7px; }
  .language-trigger { padding: 0 9px; font-size: 11px; gap: 3px; }
  .rate-card { padding-left: 16px; padding-right: 16px; }
  .rate-caption { font-size: 10px; }
  .energy-amount strong { font-size: 17px; }
  .address-card { padding-left: 15px; padding-right: 15px; }
  .notice-card { padding-left: 16px; padding-right: 16px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; } }