:root {
  --page: #ffffff;
  --surface: #f5f8fd;
  --card: #ffffff;
  --line: #e6ecf5;
  --line-strong: #d7e0ee;
  --ink: #0f1e33;
  --muted: #5d6b82;
  --faint: #8b97ab;

  --blue: #2563eb;
  --blue-deep: #1d4ed8;
  --blue-soft: #eaf1ff;
  --sky: #0ea5e9;
  --sky-soft: #e5f6fd;
  --ok: #059669;
  --warn: #b45309;
  --warn-soft: #fef4e6;
  --danger: #dc2626;

  --radius: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 30, 51, 0.05);
  --shadow: 0 10px 30px rgba(20, 50, 100, 0.07);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(760px 380px at 100% -8%, rgba(14, 165, 233, 0.08), transparent 62%),
    radial-gradient(720px 400px at -6% 108%, rgba(37, 99, 235, 0.07), transparent 60%),
    var(--page);
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

main {
  flex: 1;
}

.container {
  width: 100%;
  max-width: 940px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  flex: none;
  display: block;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.brand-name {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.3px;
  color: var(--ink);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease,
    transform 0.15s ease, box-shadow 0.15s ease;
}

.nav-link:hover {
  color: var(--blue);
  background: var(--blue-soft);
}

/* 账号商城：页头主入口，蓝底白字 CTA */
.nav-link--shop {
  color: #fff;
  font-weight: 800;
  padding: 8px 14px;
  border-radius: 10px;
  border-color: transparent;
  background: linear-gradient(135deg, var(--blue), var(--sky));
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.28);
}

.nav-link--shop:hover {
  color: #fff;
  background: linear-gradient(135deg, #1d4ed8, var(--blue));
  border-color: transparent;
  transform: translateY(-1px);
  box-shadow: 0 11px 22px rgba(37, 99, 235, 0.36);
}

/* 窄屏：公司全名 + 多个导航链接一行放不下时允许换行，避免链接被压出屏幕 */
@media (max-width: 560px) {
  .header-inner {
    flex-wrap: wrap;
    row-gap: 2px;
  }

  .header-nav {
    margin-left: auto;
  }

  .nav-link {
    padding: 4px 9px;
  }
}

/* ---------- 顶部说明 ---------- */

.intro {
  text-align: center;
  margin: 40px 0 26px;
}

.intro-logo {
  width: 72px;
  height: 72px;
  object-fit: contain;
  margin-bottom: 12px;
}

.intro-title {
  margin: 0 0 10px;
  font-size: 27px;
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--ink);
}

/* ---------- 步骤标题（1 / 2） ---------- */

.step-lead {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.step-no {
  width: 26px;
  height: 26px;
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 15px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--sky));
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.28);
}

/* ---------- 复制指引（二选一） ---------- */

.copy-guide {
  margin-bottom: 24px;
}

.guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

/* 2026-08-07 起只有一种情况（只要邮箱），单卡居中；2026-08-12 统一发货格式引导加宽做主视觉 */
.guide-grid--single {
  grid-template-columns: 1fr;
  max-width: 640px;
  margin: 0 auto;
}

.guide-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  padding: 22px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.guide-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.guide-card--cyan {
  border-color: rgba(14, 165, 233, 0.45);
  background: linear-gradient(180deg, var(--sky-soft), #fff 70%);
  padding: 28px 22px;
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.14);
}

/* 2026-08-13 引导极简化（商家反馈买家看不懂三种情况展开）：一句大字 + 一行副文案 */
.guide-fmt {
  font-size: 27px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 1px;
}

.guide-sub {
  margin: 12px 0 0;
  font-size: 16px;
  color: var(--muted);
}

.guide-sub strong {
  color: var(--ink);
  font-weight: 800;
  background: rgba(14, 165, 233, 0.14);
  border-radius: 6px;
  padding: 1px 6px;
}

/* ---------- 操作区 ---------- */

.action-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  padding: 26px 22px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font);
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--sky));
  border: none;
  border-radius: 12px;
  padding: 15px 36px;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.38);
}

.btn-primary:active {
  transform: translateY(0);
}

.action-sub {
  margin: 13px 0 0;
  font-size: 13px;
  color: var(--muted);
}

kbd {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 6px;
}

.btn-secondary {
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--blue);
  border: none;
  border-radius: 10px;
  padding: 10px 18px;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.22);
  transition: background 0.15s ease, transform 0.15s ease;
}

.btn-secondary:hover {
  background: var(--blue-deep);
  transform: translateY(-1px);
}

.btn-ghost {
  font-family: var(--font);
  color: var(--muted);
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.btn-ghost:hover {
  color: var(--blue);
  border-color: var(--blue);
  background: var(--blue-soft);
}

.btn-small {
  font-size: 12.5px;
  padding: 6px 12px;
}

/* 常驻粘贴框（2026-08-12 融合：原独立「邮箱+密码」双框表单撤除，统一整串识别） */

.fallback {
  margin-top: 18px;
  padding: 14px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  text-align: left;
}

.fallback-lead {
  margin: 0 0 10px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}

/* 剪贴板读取失败时点亮的警示行（默认 hidden） */
.fallback-msg {
  margin: 0 0 10px;
  font-size: 13.5px;
  color: var(--warn);
}

.fallback-row {
  display: flex;
  gap: 10px;
}

.fallback-row input {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.fallback-row input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* 粘贴框下的账密号提示行（cred-hint 沿用旧类名，双框表单撤除后仍在用；2026-08-13 起纯文本，接码外链已移除） */

.cred-hint {
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--muted);
}

/* 识别结果 */

.result {
  margin-top: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  font-size: 12.5px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.chip-violet {
  color: var(--blue-deep);
  background: var(--blue-soft);
  border: 1px solid rgba(37, 99, 235, 0.3);
}

.chip-cyan {
  color: #0284c7;
  background: var(--sky-soft);
  border: 1px solid rgba(14, 165, 233, 0.3);
}

.detect-text {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 12px;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copied-tip {
  font-size: 12.5px;
  color: var(--ok);
  font-weight: 600;
}

.detect-note {
  flex-basis: 100%;
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--danger);
}

/* ---------- 结果面板 ---------- */

.result-panel {
  margin-top: 18px;
  scroll-margin-top: 84px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  padding: 30px 22px;
  text-align: center;
  box-shadow: var(--shadow);
}

.rp-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

/* 加载态 */

.rp-loading-text {
  margin: 4px 0 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.rp-loading-sub {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  min-height: 18px;
}

/* 成功态 */

.rp-head {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 4px;
}

.rp-source {
  font-size: 12.5px;
  font-weight: 700;
  color: #0284c7;
  background: var(--sky-soft);
  border: 1px solid rgba(14, 165, 233, 0.3);
  border-radius: 999px;
  padding: 4px 12px;
}

.rp-fellback {
  font-size: 12.5px;
  color: var(--warn);
  background: var(--warn-soft);
  border: 1px solid rgba(180, 83, 9, 0.3);
  border-radius: 999px;
  padding: 4px 12px;
}

.code-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin: 10px auto 2px;
  padding: 20px 44px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--blue-soft), var(--sky-soft));
  border: 1px solid rgba(37, 99, 235, 0.28);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.code-box:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.22);
}

.code-label {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--muted);
}

.code-big {
  font-family: var(--mono);
  font-size: 42px;
  font-weight: 800;
  letter-spacing: 6px;
  line-height: 1.1;
  color: var(--blue-deep);
}

.code-copy {
  font-size: 12px;
  color: var(--blue);
  font-weight: 600;
}

.code-expire {
  margin: 4px 0 0;
  font-size: 12.5px;
  color: var(--muted);
}

.rp-empty-hint {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--warn);
}

/* 失败态 */

.rp-fail-icon svg {
  width: 44px;
  height: 44px;
}

.rp-fail-msg {
  margin: 4px 0 8px;
  font-size: 14.5px;
  color: var(--ink);
  max-width: 520px;
  line-height: 1.6;
}

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

.rp-fail-hint {
  margin: 12px 0 0;
  font-size: 12.5px;
  color: var(--muted);
}

/* 纯邮箱：跳转接码站取码 */
.spinner {
  width: 30px;
  height: 30px;
  flex: none;
  border-radius: 50%;
  border: 3px solid rgba(37, 99, 235, 0.2);
  border-top-color: var(--blue);
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- footer ---------- */

.site-footer {
  margin-top: auto;
  padding: 0 0 24px;
}

.footer-panel {
  padding: 16px 0 0;
  text-align: center;
}

.footer-note {
  margin: 0 auto 10px;
  max-width: 640px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--faint);
  text-align: center;
}

.footer-note svg {
  display: none;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 14px;
}

.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--faint);
  text-decoration: none;
  padding: 0;
  border: none;
  background: none;
  transition: color 0.15s ease;
}

.footer-badge svg {
  display: none;
}

.footer-badge--mps svg {
  color: var(--sky);
}

.footer-badge:hover {
  color: var(--muted);
  border-color: transparent;
  background: none;
}

.footer-badge--mps:hover {
  color: var(--muted);
  background: none;
}

.site-footer a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

.hidden {
  display: none !important;
}

/* ---------- 响应式 ---------- */

@media (max-width: 720px) {
  .brand-name {
    font-size: 14px;
  }

  .intro {
    margin: 30px 0 22px;
  }

  .intro-title {
    font-size: 22px;
  }

  .guide-grid {
    grid-template-columns: 1fr;
  }

  /* 引导卡：窄屏回缩 */
  .guide-fmt {
    font-size: 21px;
  }

  .guide-sub {
    font-size: 14.5px;
  }

  .guide-card--cyan {
    padding: 22px 16px;
  }

  .btn-primary {
    width: 100%;
    justify-content: center;
    font-size: 16px;
    padding: 14px 20px;
  }

  .fallback-row {
    flex-direction: column;
  }

  .code-big {
    font-size: 36px;
    letter-spacing: 4px;
  }

  .code-box {
    padding: 18px 30px;
  }

  .footer-panel {
    padding: 12px 0 0;
  }

  .footer-note {
    font-size: 10.5px;
  }

  .footer-legal {
    flex-direction: column;
    align-items: center;
  }
}