/* ============================================================
   收款码合并工具 — 样式表
   设计:纸墨基调 + 扫码取景框母题 + 双通道环境光。
   支付宝蓝 / 微信绿仅作渠道语义色;层级靠字重、留白与发丝线;
   动效仅一处载入编排 + 响应用户操作的反馈。
   ============================================================ */

/* ============ 设计令牌 ============ */
:root {
  color-scheme: light dark;

  /* 渠道色 —— 页面唯一的高饱和色,只用于语义标记 */
  --alipay: #1677ff;
  --alipay-ink: #1668dc;
  --alipay-tint: #e9f1fe;
  --wechat: #07c160;
  --wechat-ink: #06964b;
  --wechat-tint: #e7f7ee;

  /* 纸与墨 */
  --bg: #f5f6f8;
  --surface: #ffffff;
  --paper: #f3f4f6; /* 输入框、代码块等凹陷区域 */
  --ink: #1c1d22;
  --ink-2: #5a5f68;
  --ink-3: #8b9099;
  --hairline: #e5e7eb;
  --hairline-strong: #d4d8de;

  /* 动作 */
  --primary-bg: #1c1d22;
  --primary-bg-hover: #34363d;
  --primary-ink: #ffffff;
  --focus: #1677ff;
  --focus-ring: rgba(22, 119, 255, .14);

  /* 状态 */
  --warn-bg: #fbf3de;
  --warn-ink: #7a5f14;
  --danger: #c2453d;
  --danger-tint: rgba(194, 69, 61, .08);

  /* 质感:环境光、取景框角标、阴影 */
  --wash-a: rgba(22, 119, 255, .07);
  --wash-w: rgba(7, 193, 96, .06);
  --tick-a: rgba(22, 119, 255, .42);
  --tick-w: rgba(7, 193, 96, .42);
  --tick-ink: rgba(28, 29, 34, .32);
  --inset-hi: rgba(255, 255, 255, .65);
  --radius-card: 16px;
  --radius-control: 10px;
  --shadow-card: 0 1px 2px rgba(28, 29, 34, .04), 0 10px 28px -14px rgba(28, 29, 34, .10);
  --shadow-lift: 0 8px 20px -8px rgba(28, 29, 34, .35);
  --shadow-pop: 0 8px 28px rgba(16, 24, 40, .18);
}

@media (prefers-color-scheme: dark) {
  :root {
    --alipay-ink: #7db4ff;
    --alipay-tint: #15283f;
    --wechat-ink: #5edc9d;
    --wechat-tint: #0f2c1e;

    --bg: #121317;
    --surface: #191b20;
    --paper: #202228;
    --ink: #e8e9ec;
    --ink-2: #a2a7b0;
    --ink-3: #7a808a;
    --hairline: #282b31;
    --hairline-strong: #3a3e46;

    --primary-bg: #e8e9ec;
    --primary-bg-hover: #ffffff;
    --primary-ink: #141519;
    --focus: #4c9aff;
    --focus-ring: rgba(76, 154, 255, .18);

    --warn-bg: #2e2611;
    --warn-ink: #e0c373;
    --danger: #ee7c74;
    --danger-tint: rgba(238, 124, 116, .1);

    --wash-a: rgba(22, 119, 255, .10);
    --wash-w: rgba(7, 193, 96, .08);
    --tick-a: rgba(22, 119, 255, .55);
    --tick-w: rgba(7, 193, 96, .55);
    --inset-hi: rgba(255, 255, 255, .04);
    --shadow-card: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px -16px rgba(0, 0, 0, .5);
    --shadow-lift: 0 8px 20px -8px rgba(0, 0, 0, .6);
    --shadow-pop: 0 8px 28px rgba(0, 0, 0, .5);
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* 双通道环境光:左蓝右绿在页首汇合,呼应"两码合一" */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(60% 42% at 12% -4%, var(--wash-a), transparent 70%),
    radial-gradient(60% 42% at 88% -4%, var(--wash-w), transparent 70%);
}

code { font-family: ui-monospace, "SF Mono", Consolas, monospace; }

::selection { background: rgba(22, 119, 255, .18); }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  /* 加载指示属于必要反馈:保留旋转但放慢 */
  .spinner { animation: spin 2.4s linear infinite !important; }
}

/* ============ 顶部警示条 ============ */
.banner {
  background: var(--warn-bg);
  color: var(--warn-ink);
  border-bottom: 1px solid rgba(127, 127, 127, .25);
  padding: 10px 16px;
  font-size: 13px;
  line-height: 1.6;
  text-align: center;
}
.banner code {
  background: rgba(127, 127, 127, .14);
  padding: 1px 6px;
  border-radius: 5px;
  font-size: 12px;
}

/* ============ 页首 ============ */
.hero { text-align: center; padding: 60px 20px 40px; }
.hero-logo { display: flex; justify-content: center; margin-bottom: 20px; }
.hero-logo svg { width: 58px; height: 58px; display: block; }
.hero h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .01em;
}
.hero .subtitle { color: var(--ink-2); font-size: 15px; margin-top: 12px; }
.privacy-note {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 12.5px;
  color: var(--ink-3);
}
.privacy-note svg { flex: none; opacity: .85; }

/* 唯一一处编排动效:logo 两半滑入合并,文字逐行浮起 */
@keyframes mark-l { from { transform: translateX(-12px); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes mark-r { from { transform: translateX(12px); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes rise { from { opacity: 0; transform: translateY(9px); } to { opacity: 1; transform: none; } }
.hero-logo .half-l { animation: mark-l .55s cubic-bezier(.2, .8, .3, 1) both; }
.hero-logo .half-r { animation: mark-r .55s cubic-bezier(.2, .8, .3, 1) both; }
.hero-logo .eyes { animation: rise .45s .22s cubic-bezier(.2, .8, .3, 1) both; }
.hero h1 { animation: rise .45s .1s cubic-bezier(.2, .8, .3, 1) both; }
.hero .subtitle { animation: rise .45s .17s cubic-bezier(.2, .8, .3, 1) both; }
.privacy-note { animation: rise .45s .24s cubic-bezier(.2, .8, .3, 1) both; }

/* ============ 布局 ============ */
.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card), inset 0 1px 0 var(--inset-hi);
  padding: 24px;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.card-head h2 { font-size: 16px; font-weight: 600; letter-spacing: .01em; }

/* 步骤圆:完成后填色,序列进度一眼可读 */
.step {
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 1.5px solid var(--ink-3);
  color: var(--ink-2);
  font-size: 12.5px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  transition: background .25s, border-color .25s, color .25s;
}
.upload-card.is-done .step,
.options-card.is-done .step {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--surface);
}
.accent-alipay.is-done .step { background: var(--alipay); border-color: var(--alipay); color: #fff; }
.accent-wechat.is-done .step { background: var(--wechat); border-color: var(--wechat); color: #fff; }

.badge {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}
.badge-alipay { background: var(--alipay-tint); color: var(--alipay-ink); }
.badge-wechat { background: var(--wechat-tint); color: var(--wechat-ink); }

/* ============ 上传卡片 ============ */
.upload-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 720px) {
  .upload-grid { grid-template-columns: 1fr; }
}

/* 取景框母题:扫码器四角括号,拖拽/悬停时点亮 */
.accent-alipay .dropzone { --tick: var(--tick-a); }
.accent-wechat .dropzone { --tick: var(--tick-w); }

.dropzone {
  position: relative;
  border: 1.5px dashed var(--hairline-strong);
  border-radius: var(--radius-control);
  background: var(--surface);
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.dropzone::before {
  content: "";
  position: absolute;
  inset: 9px;
  pointer-events: none;
  opacity: .55;
  transition: opacity .15s;
  background:
    linear-gradient(var(--tick), var(--tick)) left top / 14px 2px,
    linear-gradient(var(--tick), var(--tick)) left top / 2px 14px,
    linear-gradient(var(--tick), var(--tick)) right top / 14px 2px,
    linear-gradient(var(--tick), var(--tick)) right top / 2px 14px,
    linear-gradient(var(--tick), var(--tick)) left bottom / 14px 2px,
    linear-gradient(var(--tick), var(--tick)) left bottom / 2px 14px,
    linear-gradient(var(--tick), var(--tick)) right bottom / 14px 2px,
    linear-gradient(var(--tick), var(--tick)) right bottom / 2px 14px;
  background-repeat: no-repeat;
}
.dropzone:hover { border-color: var(--ink-3); }
.dropzone:hover::before,
.dropzone.dragover::before { opacity: 1; }
.accent-alipay .dropzone.dragover { border-color: var(--alipay); background: var(--alipay-tint); }
.accent-wechat .dropzone.dragover { border-color: var(--wechat); background: var(--wechat-tint); }

.dz-empty {
  text-align: center;
  padding: 24px 16px;
  pointer-events: none;
}
.dz-empty svg { color: var(--ink-3); margin-bottom: 12px; opacity: .85; }
.dz-empty p { font-size: 14px; font-weight: 600; color: var(--ink); }
.dz-empty span { font-size: 12.5px; color: var(--ink-3); display: block; margin-top: 5px; }

.dz-loading { text-align: center; pointer-events: none; }
.dz-loading p { font-size: 13px; color: var(--ink-2); margin-top: 10px; }

.spinner {
  width: 34px; height: 34px;
  border: 3px solid var(--hairline);
  border-top-color: var(--alipay);
  border-radius: 50%;
  margin: 0 auto;
  animation: spin .8s linear infinite;
}
.accent-wechat .spinner { border-top-color: var(--wechat); }
@keyframes spin { to { transform: rotate(360deg); } }

.dz-done {
  text-align: center;
  padding: 18px 16px;
  width: 100%;
}
.dz-done img {
  max-width: 124px;
  max-height: 124px;
  border-radius: 10px;
  border: 1px solid var(--hairline);
  background: #fff;
}
.url-line { margin: 12px 0; text-align: left; }
.url-line code {
  display: block;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--ink-2);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 7px 10px;
  margin-top: 8px;
  word-break: break-all;
  max-height: 68px;
  overflow: hidden;
}
.type-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 999px;
}
.type-badge.ok { background: var(--wechat-tint); color: var(--wechat-ink); }
.type-badge.warn { background: var(--warn-bg); color: var(--warn-ink); }

.manual { margin-top: 14px; }
.manual summary {
  font-size: 12.5px;
  color: var(--ink-3);
  cursor: pointer;
  user-select: none;
  transition: color .15s;
}
.manual summary:hover,
.manual[open] summary { color: var(--ink-2); }
.manual-row { display: flex; gap: 8px; margin-top: 10px; }
.manual-row input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 8px 11px;
  font-size: 12.5px;
  font-family: inherit;
  background: var(--paper);
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
.manual-row input::placeholder { color: var(--ink-3); }
.manual-row input:focus {
  outline: none;
  border-color: var(--focus);
  box-shadow: 0 0 0 3px var(--focus-ring);
}
.manual-row .btn { padding: 8px 14px; font-size: 12.5px; }

/* ============ 选项区 ============ */
.opt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 28px;
  margin-bottom: 22px;
}
@media (max-width: 720px) {
  .opt-grid { grid-template-columns: 1fr; }
}
.opt-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 9px;
}
.check-line { display: flex; align-items: center; gap: 7px; cursor: pointer; }
.check-line input { accent-color: var(--ink); width: 15px; height: 15px; }

.radio-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill input { position: absolute; opacity: 0; pointer-events: none; }
.pill span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--hairline);
  background: var(--surface);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--ink-2);
  cursor: pointer;
  transition: border-color .15s, color .15s, background .15s, box-shadow .15s;
  user-select: none;
}
.pill span:hover { border-color: var(--hairline-strong); color: var(--ink); }
.pill input:checked + span {
  border-color: var(--ink);
  background: var(--surface);
  color: var(--ink);
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(28, 29, 34, .08);
}
.pill input:focus-visible + span { outline: 2px solid var(--focus); outline-offset: 2px; }
.swatch {
  width: 12px; height: 12px;
  border-radius: 50%;
  display: inline-block;
  box-shadow: inset 0 0 0 1px rgba(127, 127, 127, .45);
}

.text-input {
  width: 100%;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-control);
  padding: 9px 12px;
  font-size: 14px;
  background: var(--paper);
  color: var(--ink);
  font-family: inherit;
  transition: border-color .15s, box-shadow .15s;
}
.text-input::placeholder { color: var(--ink-3); }
.text-input:focus {
  outline: none;
  border-color: var(--focus);
  box-shadow: 0 0 0 3px var(--focus-ring);
}
.text-input:disabled { opacity: .5; cursor: not-allowed; }

/* ============ 按钮 ============ */
.btn {
  display: inline-block;
  border: 1px solid var(--hairline-strong);
  background: var(--surface);
  color: var(--ink);
  border-radius: var(--radius-control);
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: border-color .15s, background .15s, color .15s, transform .15s, box-shadow .15s;
}
.btn:hover { border-color: var(--ink-3); background: var(--paper); }
.btn:active { transform: scale(.985); }
.btn:disabled { opacity: .38; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--primary-bg);
  border-color: transparent;
  color: var(--primary-ink);
  font-weight: 600;
}
.btn-primary:hover:not(:disabled) {
  background: var(--primary-bg-hover);
  border-color: transparent;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lift);
}
.btn-primary:active:not(:disabled) { transform: none; box-shadow: none; }
.btn-primary:disabled {
  opacity: 1;
  background: var(--paper);
  color: var(--ink-3);
}

.btn-lg {
  width: 100%;
  padding: 14px;
  font-size: 15.5px;
  border-radius: 12px;
  letter-spacing: .02em;
}
.btn-small { padding: 5px 12px; font-size: 12.5px; border-radius: 8px; }
.btn-small:hover { border-color: var(--hairline-strong); background: var(--paper); }

.btn-danger-ghost {
  color: var(--danger);
  border-color: transparent;
  background: transparent;
}
.btn-danger-ghost:hover {
  border-color: transparent;
  background: var(--danger-tint);
  color: var(--danger);
}

.hint { text-align: center; font-size: 12.5px; color: var(--ink-3); margin-top: 12px; }

/* ============ 结果区:双通道微光底 + 打印框 ============ */
@keyframes result-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
.result-card {
  background:
    radial-gradient(120% 70% at 50% 0%, var(--wash-a), transparent 62%),
    radial-gradient(120% 70% at 50% 100%, var(--wash-w), transparent 62%),
    var(--surface);
}
.result-card:not([hidden]) { animation: result-in .35s cubic-bezier(.2, .8, .3, 1); }

.result-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 20px;
}
.title-check { color: var(--wechat-ink); flex: none; }

.result-body {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
}
.result-qr {
  position: relative;
  background: #fff;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  padding: 16px;
  line-height: 0;
}
/* 成品同样套取景框,与上传区母题呼应 */
.result-qr::before {
  content: "";
  position: absolute;
  inset: 8px;
  pointer-events: none;
  opacity: .8;
  background:
    linear-gradient(var(--tick-ink), var(--tick-ink)) left top / 14px 2px,
    linear-gradient(var(--tick-ink), var(--tick-ink)) left top / 2px 14px,
    linear-gradient(var(--tick-ink), var(--tick-ink)) right top / 14px 2px,
    linear-gradient(var(--tick-ink), var(--tick-ink)) right top / 2px 14px,
    linear-gradient(var(--tick-ink), var(--tick-ink)) left bottom / 14px 2px,
    linear-gradient(var(--tick-ink), var(--tick-ink)) left bottom / 2px 14px,
    linear-gradient(var(--tick-ink), var(--tick-ink)) right bottom / 14px 2px,
    linear-gradient(var(--tick-ink), var(--tick-ink)) right bottom / 2px 14px;
  background-repeat: no-repeat;
}
.result-qr img { max-width: 264px; width: 100%; height: auto; }
.result-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 220px;
  max-width: 300px;
}
.result-side .btn { text-align: center; }
.result-name { font-weight: 600; font-size: 14.5px; }
.result-tip { font-size: 12.5px; color: var(--ink-3); }
.warn {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--warn-ink);
  background: var(--warn-bg);
  border-radius: 10px;
  padding: 10px 12px;
}

/* ============ 历史记录 ============ */
.history-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.history-head h2 { font-size: 16px; font-weight: 600; }
.empty-tip { font-size: 13px; color: var(--ink-3); line-height: 1.7; }

.history-list { list-style: none; margin-top: 2px; }
.hist-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px 16px;
  padding: 15px 2px;
  border-bottom: 1px solid var(--hairline);
  flex-wrap: wrap;
}
.hist-item:last-child { border-bottom: none; padding-bottom: 2px; }
.hist-main { flex: 1; min-width: 200px; }
.hist-name { font-weight: 600; font-size: 14px; }
.hist-meta {
  font-size: 12.5px;
  color: var(--ink-3);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.hist-warn { font-size: 12px; color: var(--warn-ink); margin-top: 5px; line-height: 1.6; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.a { background: var(--alipay); }
.dot.w { background: var(--wechat); }
.hist-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ============ 项目链接 ============ */
.page-foot {
  display: flex;
  justify-content: center;
  padding: 0 20px 36px;
}
.page-foot a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink-3);
  font-size: 12.5px;
  text-decoration: none;
  transition: color .15s;
}
.page-foot a:hover {
  color: var(--ink-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-foot svg { flex: none; opacity: .85; }

/* ============ Toast ============ */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  background: rgba(24, 26, 31, .92);
  color: #fff;
  font-size: 13.5px;
  padding: 10px 20px;
  border-radius: 999px;
  max-width: min(90vw, 480px);
  text-align: center;
  z-index: 99;
  box-shadow: var(--shadow-pop);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: toast-in .22s cubic-bezier(.2, .8, .3, 1);
}
@keyframes toast-in {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}
@media (prefers-color-scheme: dark) {
  .toast { background: rgba(232, 233, 236, .94); color: #14151a; }
}

/* ============ 小屏微调 ============ */
@media (max-width: 480px) {
  .hero { padding: 44px 16px 30px; }
  .hero h1 { font-size: 26px; }
  .card { padding: 20px 18px; }
  .result-body { gap: 20px; }
  .result-side { max-width: none; width: 100%; }
}