:root,
[data-theme="mint_fresh"] {
  color: #3e4b47;
  background: #eef8f0;
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  --mint-dark: #315e52;
  --mint: #9cdec5;
  --mint-light: #dff5e8;
  --coral: #ffa5aa;
  --apricot: #ffddb8;
  --page-bg: linear-gradient(110deg, #f5faf6 0%, #edf9f0 48%, #d9f3db 100%);
  --card-bg: #fff; --hero-bg: linear-gradient(115deg, #bfead8, #71cda4); --title-color: #315e52;
  --input-bg: #fff; --input-border: #d5dde1; --button-bg: #ffa5aa; --button-color: #523d3f;
  --status-bg: #f3f9f5; --notes-bg: #ffddb8; --success-view-bg: #fff;
  --success-code-bg: #f1f8f4; --success-warning-bg: #ffddb8; --panel-color: #624d3e;
}

[data-theme="ocean_blue"] {
  --page-bg: linear-gradient(120deg, #f2f9ff, #d9edff); --card-bg: #fff; --hero-bg: linear-gradient(115deg, #bde7ff, #69bdec); --title-color: #174f73;
  --input-bg: #fafdff; --input-border: #9fcce5; --button-bg: #ff9d9d; --button-color: #503b3b; --status-bg: #edf8ff; --notes-bg: #dcefff;
  --success-view-bg: #fafdff; --success-code-bg: #e9f6ff; --success-warning-bg: #ffe1c2; --panel-color: #294f69;
}
[data-theme="violet_aura"] {
  --page-bg: linear-gradient(120deg, #fbf8ff, #e9ddfa); --card-bg: #fffefe; --hero-bg: linear-gradient(115deg, #e5d3fa, #b89be5); --title-color: #513879;
  --input-bg: #fdfbff; --input-border: #c9b6df; --button-bg: #e3a7c7; --button-color: #56364a; --status-bg: #f7f1fd; --notes-bg: #f2dded;
  --success-view-bg: #fffbff; --success-code-bg: #f3eafd; --success-warning-bg: #f8dfc7; --panel-color: #60465a;
}
[data-theme="apricot_cream"] {
  --page-bg: linear-gradient(120deg, #fff8f1, #ffd8c5); --card-bg: #fffdfb; --hero-bg: linear-gradient(115deg, #ffd4bb, #f59e8b); --title-color: #7b3f35;
  --input-bg: #fffaf6; --input-border: #e8b9a7; --button-bg: #f0837c; --button-color: #fff; --status-bg: #fff3ec; --notes-bg: #ffe1a9;
  --success-view-bg: #fffaf7; --success-code-bg: #fff0e7; --success-warning-bg: #ffdba9; --panel-color: #71473c;
}
[data-theme="sakura_soft"] {
  --page-bg: linear-gradient(120deg, #fff9fb, #f9dce7); --card-bg: #fff; --hero-bg: linear-gradient(115deg, #ffdce9, #efa8c2); --title-color: #773650;
  --input-bg: #fffbfd; --input-border: #e5b7c8; --button-bg: #e886aa; --button-color: #fff; --status-bg: #fff1f6; --notes-bg: #f9e2d9;
  --success-view-bg: #fffafd; --success-code-bg: #fcecf3; --success-warning-bg: #f8ddc6; --panel-color: #68424f;
}
[data-theme="vermilion_gold"] {
  color: #3d2920; background: #efe0c8; --page-bg: linear-gradient(150deg, #f8f0e2, #efe0c8); --card-bg: #fff9ed; --hero-bg: linear-gradient(120deg, #7f1d1d, #982b27); --title-color: #f6d98a;
  --input-bg: #fffcf5; --input-border: #c9a968; --button-bg: #982b27; --button-color: #fff4d2; --status-bg: #f8e8c5; --notes-bg: #f8e8c5;
  --success-view-bg: #fff9ed; --success-code-bg: #f7f0df; --success-warning-bg: #f8e8c5; --panel-color: #624517;
}
[data-theme="obsidian_gold"] {
  color: #f3f1ea; background: #05070b; --page-bg: linear-gradient(145deg, #05070b, #0c111a); --card-bg: #111722; --hero-bg: linear-gradient(120deg, #171d28, #242719); --title-color: #f2d27d;
  --input-bg: #0b1018; --input-border: #665536; --button-bg: linear-gradient(135deg, #b9862e, #e5c66f); --button-color: #171108; --status-bg: #171d28; --notes-bg: #29210f;
  --success-view-bg: #101c18; --success-code-bg: #14231e; --success-warning-bg: #29210f; --panel-color: #f3d98b;
}
[data-theme="corporate_navy"] {
  color: #dbe7f6; background: #101a2c; --page-bg: linear-gradient(120deg, #111b2d, #253b5d); --card-bg: #1b2940; --hero-bg: linear-gradient(115deg, #283f63, #426d9c); --title-color: #f0f6ff;
  --input-bg: #142238; --input-border: #587392; --button-bg: #ef9a9f; --button-color: #3f3032; --status-bg: #223550; --notes-bg: #4b3f36;
  --success-view-bg: #1b2940; --success-code-bg: #223853; --success-warning-bg: #4b3f36; --panel-color: #f3e3d6;
}
[data-theme="neon_cyber"] {
  color: #e8f8ff; background: #050710; --page-bg: radial-gradient(circle at 20% 0%, #182251, #080b17 46%, #050710); --card-bg: #0d1222; --hero-bg: linear-gradient(120deg, #111831, #21152c); --title-color: #70f4ff;
  --input-bg: #080d19; --input-border: #38506f; --button-bg: #57e7f2; --button-color: #041116; --status-bg: #111831; --notes-bg: #21152c;
  --success-view-bg: #0d1d1b; --success-code-bg: #112824; --success-warning-bg: #21152c; --panel-color: #f2c8ff;
}
[data-theme="system_minimal"] {
  --page-bg: linear-gradient(120deg, #f7f7f7, #dedede); --card-bg: #fff; --hero-bg: linear-gradient(115deg, #e4e4e4, #bdbdbd); --title-color: #292929;
  --input-bg: #fff; --input-border: #aaa; --button-bg: #555; --button-color: #fff; --status-bg: #f2f2f2; --notes-bg: #e5e5e5;
  --success-view-bg: #fff; --success-code-bg: #eee; --success-warning-bg: #dedede; --panel-color: #333;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: #eef8f0; }
body { margin: 0; min-height: 100vh; }
button, input { font: inherit; }

.page {
  align-items: flex-start;
  background: var(--page-bg);
  display: flex;
  min-height: 100vh;
  padding: max(40px, env(safe-area-inset-top)) 16px max(32px, env(safe-area-inset-bottom));
}

.claim-shell {
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(48, 103, 78, .09);
  margin: 0 auto;
  max-width: 700px;
  overflow: hidden;
  width: 100%;
}

.hero {
  align-items: center;
  background: var(--hero-bg);
  color: var(--title-color);
  display: flex;
  justify-content: center;
  min-height: 88px;
  padding: 20px 24px;
}

.key-icon { flex: 0 0 auto; height: 33px; margin-right: 13px; width: 33px; }
h1 { font-size: clamp(21px, 4vw, 25px); font-weight: 780; letter-spacing: .01em; line-height: 1.25; margin: 0; }

.content { padding: 28px 24px 26px; }
.claim-image { border-radius: 14px; display: block; margin: 0 auto 25px; max-height: 280px; object-fit: contain; width: 100%; }

.channel-label {
  align-items: center;
  color: #3f5d52;
  display: flex;
  font-size: 15px;
  font-weight: 680;
  gap: 10px;
  justify-content: center;
  letter-spacing: .08em;
  margin: 0 0 12px;
}
.channel-label span { background: #92ceb3; border-radius: 50%; height: 5px; width: 5px; }
.intro { color: #6b7772; font-size: 14px; line-height: 1.7; margin: 0 auto 20px; max-width: 540px; text-align: center; }

.status-row {
  align-items: flex-start;
  background: var(--status-bg);
  border: 1px solid #e0eee5;
  border-radius: 12px;
  display: flex;
  gap: 10px;
  margin: 0 0 24px;
  padding: 11px 14px;
}
.mark {
  align-items: center;
  border-radius: 50%;
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 800;
  height: 22px;
  justify-content: center;
  margin-top: 1px;
  width: 22px;
}
.mark.valid { background: #d7f1e2; color: #277b55; }
.mark.warning { background: #ffe6c2; color: #a86516; }
.mark.pending { background: #e5ece8; color: #738079; }
.page-message { color: #53635c; flex: 1; font-size: 14px; line-height: 1.6; margin: 0; }
.status-row:has(.mark.warning) { background: #fff7ea; border-color: #f4dfbd; }
.status-row:has(.mark.warning) .page-message { color: #85551d; }
.status-row:has(.mark.valid) { background: #edf9f2; border-color: #d7eddf; }
.page-message.error { color: #9c4c37; }
.page-message.success { color: #26714f; font-weight: 680; }

label {
  align-items: center;
  color: #344942;
  display: flex;
  font-size: 16px;
  font-weight: 680;
  gap: 8px;
  margin: 0 0 10px;
}
.edit-icon { color: #4e7d6b; height: 22px; width: 22px; }
#message {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 12px;
  color: #263a33;
  font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 20px;
  font-weight: 650;
  height: 62px;
  letter-spacing: .02em;
  line-height: 1.2;
  padding: 0 18px;
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
}
#message::placeholder { color: #9aa5a1; font-family: inherit; font-size: 17px; font-style: normal; font-weight: 500; }
#message:focus { border-color: #74c7a3; box-shadow: 0 0 0 4px rgba(101, 191, 151, .14); outline: 0; }
#message:disabled { background: #f5f7f6; color: #728079; cursor: not-allowed; }
.preview { color: #aa5a49; font-size: 14px; min-height: 22px; margin: 9px 2px 15px; overflow-wrap: anywhere; }
.preview.valid { color: #277b55; }

button {
  align-items: center;
  background: var(--button-bg);
  border: 0;
  border-radius: 999px;
  color: var(--button-color);
  cursor: pointer;
  display: flex;
  font-size: 17px;
  font-weight: 760;
  gap: 9px;
  justify-content: center;
  min-height: 52px;
  padding: 12px 20px;
  transition: filter .18s, transform .18s, box-shadow .18s;
  width: 100%;
}
button:hover:not(:disabled) { box-shadow: 0 8px 20px rgba(217, 111, 119, .22); filter: saturate(1.05); transform: translateY(-1px); }
button:active:not(:disabled) { box-shadow: none; transform: translateY(0); }
button:focus-visible { outline: 3px solid rgba(72, 132, 108, .28); outline-offset: 3px; }
button:disabled { background: #efc1c4; color: #755f60; cursor: not-allowed; opacity: .82; }
.submit-icon { height: 23px; width: 23px; }

.submitted-code { background: #edf7f1; border: 1px solid #d5eadd; border-radius: 12px; color: #36594b; font-weight: 700; margin-top: 14px; overflow-wrap: anywhere; padding: 13px 15px; }
.notes-panel { background: var(--notes-bg); border-radius: 15px; color: var(--panel-color); margin-top: 48px; padding: 28px 30px 27px; }
.notes-heading { font-size: 16px; font-weight: 760; margin-bottom: 12px; }
.notes { font-size: 14px; line-height: 1.85; list-style: none; margin: 0; padding: 0; }
.notes li { padding-left: 18px; position: relative; }
.notes li::before { background: #b78360; border-radius: 50%; content: ""; height: 5px; left: 1px; position: absolute; top: .78em; width: 5px; }
.notes li + li { margin-top: 5px; }

.success-view {
  background: var(--success-view-bg);
  padding: 44px 34px 38px;
  text-align: center;
}
.success-emblem {
  align-items: center;
  background: linear-gradient(145deg, #e0f6e9, #c8eed9);
  border-radius: 50%;
  color: #2d8a5d;
  display: flex;
  height: 92px;
  justify-content: center;
  margin: 0 auto 22px;
  width: 92px;
}
.success-emblem svg { height: 64px; width: 64px; }
.success-view h2 { color: #245d47; font-size: 28px; line-height: 1.3; margin: 0 0 10px; }
.success-view > p { color: #67766f; font-size: 16px; line-height: 1.7; margin: 0 auto 26px; max-width: 480px; }
.success-code-box {
  background: var(--success-code-bg);
  border: 1px solid #d8eadf;
  border-radius: 15px;
  margin: 0 auto 22px;
  max-width: 470px;
  padding: 17px 20px;
}
.success-code-box span { color: #74817b; display: block; font-size: 13px; margin-bottom: 7px; }
.success-code-box strong { color: #2f6f54; display: block; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 22px; letter-spacing: .04em; overflow-wrap: anywhere; }
.success-warning {
  align-items: flex-start;
  background: var(--success-warning-bg);
  border-radius: 15px;
  color: var(--panel-color);
  display: flex;
  gap: 12px;
  margin: 0 auto;
  max-width: 470px;
  padding: 18px 20px;
  text-align: left;
}
.success-warning svg { flex: 0 0 auto; height: 24px; margin-top: 1px; width: 24px; }
.success-warning strong, .success-warning span { display: block; }
.success-warning strong { font-size: 15px; margin-bottom: 4px; }
.success-warning span { font-size: 13px; line-height: 1.6; }

[data-theme="vermilion_gold"] .success-emblem { background: #f8e8c5; color: #8f2824; }
[data-theme="vermilion_gold"] .success-view h2,
[data-theme="vermilion_gold"] .success-code-box strong { color: #8f2824; }
[data-theme="vermilion_gold"] .success-code-box { border-color: #d8b974; }

/* 深色主题可读性：所有业务文字都使用高对比度颜色，不继承薄荷主题深色字。 */
[data-theme="obsidian_gold"] .channel-label,
[data-theme="obsidian_gold"] label,
[data-theme="obsidian_gold"] .page-message,
[data-theme="obsidian_gold"] .success-view h2,
[data-theme="obsidian_gold"] .success-code-box strong,
[data-theme="neon_cyber"] .channel-label,
[data-theme="neon_cyber"] label,
[data-theme="neon_cyber"] .page-message,
[data-theme="neon_cyber"] .success-view h2,
[data-theme="neon_cyber"] .success-code-box strong,
[data-theme="corporate_navy"] .channel-label,
[data-theme="corporate_navy"] label,
[data-theme="corporate_navy"] .page-message,
[data-theme="corporate_navy"] .success-view h2,
[data-theme="corporate_navy"] .success-code-box strong { color: var(--title-color); }
[data-theme="obsidian_gold"] .intro,
[data-theme="obsidian_gold"] .success-view > p,
[data-theme="obsidian_gold"] .success-code-box span,
[data-theme="neon_cyber"] .intro,
[data-theme="neon_cyber"] .success-view > p,
[data-theme="neon_cyber"] .success-code-box span,
[data-theme="corporate_navy"] .intro,
[data-theme="corporate_navy"] .success-view > p,
[data-theme="corporate_navy"] .success-code-box span { color: #b8c4cf; }
[data-theme="obsidian_gold"] #message,
[data-theme="neon_cyber"] #message,
[data-theme="corporate_navy"] #message { color: #f3f6f8; }
[data-theme="obsidian_gold"] #message::placeholder,
[data-theme="neon_cyber"] #message::placeholder,
[data-theme="corporate_navy"] #message::placeholder { color: #8998a8; }
[data-theme="obsidian_gold"] .status-row,
[data-theme="neon_cyber"] .status-row,
[data-theme="corporate_navy"] .status-row { border-color: var(--input-border); }
[data-theme="obsidian_gold"] .edit-icon,
[data-theme="neon_cyber"] .edit-icon,
[data-theme="corporate_navy"] .edit-icon { color: var(--title-color); }
[data-theme="obsidian_gold"] button:disabled,
[data-theme="neon_cyber"] button:disabled,
[data-theme="corporate_navy"] button:disabled { background: #354052; color: #c1cad4; }
[hidden] { display: none !important; }

@media (max-width: 560px) {
  .page { padding: max(16px, env(safe-area-inset-top)) 14px max(22px, env(safe-area-inset-bottom)); }
  .claim-shell { border-radius: 15px; box-shadow: 0 10px 30px rgba(48, 103, 78, .08); }
  .hero { min-height: 78px; padding: 18px; }
  .key-icon { height: 29px; margin-right: 10px; width: 29px; }
  .content { padding: 23px 18px 20px; }
  .channel-label { font-size: 14px; }
  .status-row { margin-bottom: 21px; }
  #message { font-size: 19px; height: 60px; }
  .notes-panel { margin-top: 34px; padding: 23px 20px; }
  .success-view { padding: 34px 18px 28px; }
  .success-emblem { height: 82px; margin-bottom: 19px; width: 82px; }
  .success-emblem svg { height: 57px; width: 57px; }
  .success-view h2 { font-size: 25px; }
  .success-code-box strong { font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}