* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--offer-page-bg, #f7f7f7);
  color: #222;
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.7;
}

.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px;
  background: #fff;
  min-height: 100vh;
}

.center {
  text-align: center;
}

.notice {
  background: #fdecec;
  border-left: 4px solid #ef4444;
  color: #ef3333;
  padding: 16px;
  border-radius: 4px;
  font-weight: 700;
  text-align: center;
}

.section {
  margin: 26px 0;
  border-bottom: 1px solid #eee;
  padding-bottom: 18px;
}

.section h2 {
  margin: 0 0 16px;
  font-size: 22px;
}

.row-copy {
  display: flex;
  gap: 8px;
  align-items: center;
}

.display-text {
  flex: 1;
  min-width: 0;
  color: #e53935;
  font-size: 20px;
  font-weight: 700;
  word-break: break-all;
}

button,
.button {
  border: 0;
  border-radius: 6px;
  background: #1f73d2;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  min-height: 42px;
  padding: 0 18px;
  text-decoration: none;
}

button:disabled {
  background: #bbb;
  cursor: not-allowed;
}

.image {
  display: block;
  max-width: 100%;
  margin: 18px auto;
}

.main-comment-guide {
  color: var(--main-comment-guide-color, #1f2937);
}

.main-comment-image {
  width: min(100%, var(--main-comment-image-width, 700px));
}

.promo-shell {
  max-width: 760px;
  margin: 22px auto;
  padding: 28px 34px;
  background: #fff;
}

.promo-notice {
  background: var(--promo-notice-bg);
  border-left: 4px solid var(--promo-border);
  color: var(--promo-title);
  padding: 16px;
  text-align: center;
  border-radius: 4px;
  font-weight: 700;
}

.promo-button {
  background: var(--promo-button-bg);
  color: var(--promo-button-color);
  width: 250px;
  margin-top: 0;
}

.keyword-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--keyword-row-gap, 10px);
}

.keyword-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--keyword-text, #e53935);
  font-weight: 700;
}

.keyword-list button {
  background: var(--keyword-button-bg, #1f73d2);
  color: var(--keyword-button-color, #ffffff);
}

.comment-box {
  background: #f4f7fb;
  border: 1px solid #ddd;
  border-left: 4px solid #ef4444;
  border-radius: 18px;
  color: #536278;
  font-family: Georgia, serif;
  padding: 18px;
  word-break: break-all;
}

.badge {
  font-size: 14px;
  font-weight: 400;
}

.debug {
  color: #777;
  font-size: 13px;
  margin-top: 8px;
}

.upload-card {
  max-width: 600px;
  margin: 32px auto;
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(0,0,0,.1);
}

.upload-header {
  background: linear-gradient(90deg, #4776e6, #8e54e9);
  color: #fff;
  padding: 28px;
  text-align: center;
}

.upload-area {
  margin: 28px;
  border: 3px dashed #8e54e9;
  border-radius: 16px;
  padding: 34px 18px;
  text-align: center;
  background: #f9f7ff;
  cursor: pointer;
}

.upload-area.drag-over {
  background: #eef2ff;
}

.progress {
  height: 12px;
  background: #e9ecef;
  margin: 20px 28px;
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #2ecc71, #1abc9c);
}

.resource-card {
  width: min(400px, calc(100% - 40px));
  margin: 60px auto;
  background: var(--resource-card-bg);
  border-radius: 20px;
  padding: 32px 20px;
  text-align: center;
  box-shadow: 0 6px 24px rgba(0,0,0,.12);
}

.resource-button {
  display: flex;
  justify-content: center;
  gap: 10px;
  color: #fff;
  border-radius: 12px;
  font-size: 22px;
  padding: 14px 0;
  margin: 16px 0;
  text-decoration: none;
}

.offer-card {
  max-width: 430px;
  margin: 50px auto;
  background: var(--offer-card-bg, #fff);
  border-radius: 18px;
  padding: 28px;
  text-align: center;
  box-shadow: var(--offer-card-shadow, 0 10px 30px rgba(0,0,0,.12));
  color: var(--offer-text-color, #222);
}

.offer-card h1 {
  color: var(--offer-title-color, #222);
}

#offer-rewards {
  color: var(--offer-reward-color, #222);
}

#offer-warning {
  color: var(--offer-warning-color, #222);
}

.offer-countdown {
  color: var(--offer-countdown-color, #222);
}

#offer-button {
  background: var(--offer-button-bg, #1f73d2);
  color: var(--offer-button-color, #fff);
}

.mask {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--offer-mask-bg, rgba(0,0,0,.45));
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.mask.visible {
  display: flex;
}

.popup {
  background: var(--offer-popup-bg, #fff);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  max-width: 360px;
  color: var(--offer-popup-text-color, #222);
}

.popup h3 {
  color: var(--offer-popup-title-color, #222);
}

.qr-url {
  margin: 18px 0 12px;
  padding: 14px 16px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  background: #f9fafb;
  color: var(--offer-popup-text-color, #222);
  font-size: 14px;
  line-height: 1.6;
  word-break: break-all;
  text-align: left;
}

.popup-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

#confirm-cancel,
#qr-copy,
#qr-close {
  background: var(--offer-secondary-button-bg, #e5e7eb);
  color: var(--offer-secondary-button-color, #111827);
}

#confirm-ok {
  background: var(--offer-primary-button-bg, #1f73d2);
  color: var(--offer-primary-button-color, #ffffff);
}

button:disabled {
  background: var(--offer-button-disabled-bg, #bbb);
  color: var(--offer-button-disabled-color, #fff);
  cursor: not-allowed;
}

@media (max-width: 520px) {
  .page {
    padding: 16px;
  }
  .row-copy {
    align-items: stretch;
    flex-direction: column;
  }
  .promo-shell {
    padding: 18px;
  }
}

.config-highlight {
  animation: configPulse 1.4s ease-out 1;
  box-shadow: 0 0 0 5px rgba(245, 158, 11, .35), 0 16px 42px rgba(245, 158, 11, .35) !important;
  outline: 3px solid #f59e0b !important;
  outline-offset: 4px;
}

@keyframes configPulse {
  0% { transform: scale(.995); }
  40% { transform: scale(1.01); }
  100% { transform: scale(1); }
}