/* ---------- 全局：hidden 属性优先级修复 ---------- */
[hidden] { display: none !important; }

/* ============================================================
 * url.css — 迪妙可信认证共享组件样式
 * 供 url.html（安全中转页）与 index.html（核验平台）共同引用
 * 导航/页脚由 ../style.css 决定，本文件不得覆盖其桌面端样式
 * ============================================================ */

/* ---------- 按钮（与官网首页 inline 样式保持一致） ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
  line-height: 1.5;
}
.btn-primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 8px 24px rgba(26, 110, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(26, 110, 255, 0.45); }
.btn-secondary {
  background: white;
  color: var(--text);
  border: 1.5px solid var(--border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ---------- 核验模式切换页签 ---------- */
.mode-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.mode-tab {
  padding: 9px 22px;
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(6px);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 700;
  border-radius: 100px;
  cursor: pointer;
  transition: var(--transition);
}
.mode-tab:hover { border-color: white; background: rgba(255, 255, 255, 0.7); }
.mode-tab.active {
  background: white;
  color: var(--primary);
  border-color: white;
  box-shadow: 0 4px 14px rgba(26, 110, 255, 0.25);
}

/* ---------- 页面骨架 ---------- */
.url-main { padding: 40px 0 80px; background: var(--bg-warm); min-height: 50vh; }
.url-grid { display: grid; grid-template-columns: 1fr; gap: 20px; max-width: 860px; margin: 0 auto; }

.url-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  box-shadow: var(--shadow);
}
.card-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-title::before {
  content: '';
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: var(--primary-gradient);
  flex-shrink: 0;
}

/* ---------- 目标链接卡片 ---------- */
.url-dest-card { border-top: 3px solid var(--primary); }
.dest-label { font-size: 12px; font-weight: 700; letter-spacing: 2px; color: var(--text-light); margin-bottom: 8px; }
.dest-url {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
  line-height: 1.6;
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  user-select: all;
}
.dest-host-row { display: flex; align-items: center; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.dest-host { font-size: 13px; color: var(--text-secondary); font-weight: 600; }
.host-tag { font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 100px; }
.host-tag.is-https { background: var(--success-light); color: var(--success); }
.host-tag.is-http  { background: var(--warning-light); color: var(--warning); }
.host-tag.is-danger { background: var(--danger-light); color: var(--danger); }
.host-tag.is-gray  { background: var(--bg-warm); color: var(--text-secondary); border: 1px solid var(--border); }

/* ---------- 品牌识别卡片 ---------- */
.brand-card { display: flex; align-items: center; gap: 18px; border-left: 4px solid var(--success); }
.brand-card.brand-warn { border-left-color: var(--warning); }
.brand-badge {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 24px;
  font-weight: 900;
  flex-shrink: 0;
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
  overflow: hidden;
}
.brand-badge img { width: 72%; height: 72%; object-fit: contain; display: block; }
.brand-badge-logo { background: #ffffff; border: 1px solid var(--border); }
.brand-badge-green   { background: linear-gradient(135deg, #16a34a, #15803d); }
.brand-badge-orange  { background: linear-gradient(135deg, #f97316, #ea580c); }
.brand-badge-yellow  { background: linear-gradient(135deg, #eab308, #ca8a04); }
.brand-name { font-size: 17px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.brand-name small { font-size: 13px; font-weight: 600; color: var(--text-light); margin-left: 8px; }
.brand-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }

/* ---------- 核验清单 ---------- */
.check-list { list-style: none; display: grid; grid-template-columns: 1fr; gap: 10px; }
@media(min-width: 769px) {
  .check-list { grid-template-columns: repeat(2, 1fr); }
}
.check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-warm);
  border: 1px solid var(--border);
}
.check-icon { width: 22px; height: 22px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px; }
.check-icon svg { width: 13px; height: 13px; }
.check-icon.pass { background: var(--success-light); color: var(--success); }
.check-icon.warn { background: var(--warning-light); color: var(--warning); }
.check-icon.fail { background: var(--danger-light); color: var(--danger); }
.check-body { flex: 1; min-width: 0; }
.check-label { font-size: 14px; font-weight: 700; color: var(--text); }
.check-detail { font-size: 12.5px; color: var(--text-secondary); line-height: 1.6; word-break: break-all; }


/* ---------- 深度核验项（异步追加） ---------- */
.check-item.deep {
  background: linear-gradient(135deg, #f5f9ff 0%, #ffffff 100%);
  border-color: rgba(26, 110, 255, 0.25);
}
.check-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  border-radius: 4px;
  padding: 1px 7px;
  margin-left: 8px;
  vertical-align: 2px;
  letter-spacing: 1px;
  flex-shrink: 0;
}

/* ---------- 标准条款映射标签（YD/T 7.4） ---------- */
.check-clause { font-size: 10px; color: var(--text-light); font-weight: 500; margin-left: 6px; letter-spacing: 0; white-space: nowrap; }
@media(max-width:768px){ .check-clause { display: block; margin: 2px 0 0; white-space: normal; } }

/* ---------- 标准体系依据提示（卡片级统一声明） ---------- */
.check-standard-note { font-size: 11.5px; color: var(--text-light); line-height: 1.8; background: var(--bg-warm); border: 1px dashed var(--border); border-radius: 8px; padding: 8px 12px; margin: -4px 0 14px; word-break: break-all; overflow-wrap: anywhere; }
.dm-title-count { color: var(--text-light); font-weight: 500; }
@media(max-width:768px){
  .check-standard-note { font-size: 11px; padding: 8px 10px; line-height: 1.75; word-break: break-all; }
  .card-title { flex-wrap: wrap; row-gap: 4px; line-height: 1.5; }
  .dm-title-count { flex-basis: 100%; font-size: 12px; margin-top: 2px; }
}

/* ---------- 事件三维分类建议行（GB/T 分类分级指南 5.2） ---------- */
.risk-event-class { font-size: 12px; color: var(--text-light); margin-top: 8px; padding: 6px 10px; background: rgba(255,255,255,0.6); border-radius: 8px; line-height: 1.7; }

/* ---------- 跳过/不可达状态（检测未完成 ≠ 检测通过） ---------- */
.check-icon.skip { background: var(--bg-warm); color: var(--text-light); }
.check-item.skip { opacity: 0.92; }
.check-item.skip .check-label { color: var(--text-light); }
.check-item.skip .check-detail { color: var(--text-light); font-style: italic; }

/* ---------- 深度核验实时进度 ---------- */
.whois-progress-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.whois-progress-label::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  animation: dm-progress-pulse 1.2s infinite;
  flex-shrink: 0;
}
@keyframes dm-progress-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.75); }
}
.whois-progress {
  height: 6px;
  background: var(--bg-warm);
  border-radius: 100px;
  overflow: hidden;
}
.whois-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--primary-gradient);
  border-radius: 100px;
  transition: width 0.4s ease;
}

/* ---------- 主要风险因子（可解释性） ---------- */
.risk-factors { padding: 0 32px 22px; font-size: 12.5px; line-height: 1.9; }
.rf-label { font-weight: 800; color: var(--danger); margin-right: 2px; }
.rf-item { color: var(--text-secondary); }
.rf-item + .rf-item::before { content: ' · '; color: var(--text-light); }

/* ---------- 风险结论 ---------- */
.risk-card { padding: 0; overflow: hidden; }
.risk-banner { display: flex; align-items: flex-start; gap: 16px; padding: 24px 32px; }
.risk-banner.level-trusted { background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%); }
.risk-banner.level-normal  { background: linear-gradient(135deg, #e8f1ff 0%, #ffffff 100%); }
.risk-banner.level-caution { background: linear-gradient(135deg, #fff7ed 0%, #ffffff 100%); }
.risk-banner.level-high    { background: linear-gradient(135deg, #fef2f2 0%, #ffffff 100%); }
.risk-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.risk-icon svg { width: 24px; height: 24px; }
.level-trusted .risk-icon { background: var(--success-light); color: var(--success); }
.level-normal  .risk-icon { background: var(--primary-light); color: var(--primary); }
.level-caution .risk-icon { background: var(--warning-light); color: var(--warning); }
.level-high    .risk-icon { background: var(--danger-light); color: var(--danger); }
.risk-title { font-size: 17px; font-weight: 800; margin-bottom: 4px; }
.risk-desc { font-size: 13.5px; color: var(--text-secondary); line-height: 1.7; }
.reco-list { list-style: none; padding: 0 32px 24px; display: flex; flex-direction: column; gap: 8px; }
.reco-list li { font-size: 13px; color: var(--text-secondary); line-height: 1.7; padding-left: 20px; position: relative; }
.reco-list li::before {
  content: '';
  position: absolute;
  left: 2px; top: 8px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--danger);
}

/* ---------- 中转页操作区 ---------- */
.action-card { text-align: center; }
.agree-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-bottom: 18px;
  cursor: pointer;
  text-align: left;
}
.agree-row input { width: 18px; height: 18px; accent-color: var(--danger); cursor: pointer; flex-shrink: 0; }
.action-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.action-tip { font-size: 12.5px; color: var(--text-light); margin-top: 16px; line-height: 1.7; }

/* ---------- 中转页演示区 ---------- */
.demo-card { max-width: 860px; margin: 0 auto 20px; }
.demo-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.9; margin-bottom: 24px; }
.demo-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 28px; }
.demo-step {
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.demo-step strong { color: var(--text); font-size: 14px; }
.demo-step code {
  display: inline-block;
  margin-top: 4px;
  font-size: 12px;
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 2px 8px;
  border-radius: 6px;
  word-break: break-all;
}
.demo-step-num {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.demo-form { border-top: 1px dashed var(--border); padding-top: 24px; }
.demo-input-row { display: flex; gap: 12px; }
.demo-input-row input {
  flex: 1;
  min-width: 0;
  height: 48px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 0 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  outline: none;
  transition: var(--transition);
}
.demo-input-row input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.demo-error { font-size: 12.5px; color: var(--danger); margin-top: 8px; }

/* ---------- 四级风险等级标尺 ---------- */
.level-meter { display: flex; gap: 6px; padding: 0 32px 22px; }
.lm-seg {
  flex: 1;
  text-align: center;
  padding: 7px 0;
  font-size: 12px;
  font-weight: 700;
  border-radius: 8px;
  background: var(--bg-warm);
  color: var(--text-light);
  border: 1px solid var(--border);
}
.lm-seg.active { color: #fff; border-color: transparent; }
.lm-trusted.active { background: var(--success); }
.lm-normal.active  { background: var(--primary); }
.lm-caution.active { background: var(--warning); }
.lm-high.active    { background: var(--danger); }

/* ---------- 域名基础设施信息卡 ---------- */
.whois-body { min-height: 20px; }
.whois-loading, .whois-note { font-size: 13px; color: var(--text-light); line-height: 1.7; }
.whois-grid { display: grid; grid-template-columns: 96px 1fr; gap: 8px 14px; }
.whois-label { font-size: 12.5px; font-weight: 600; color: var(--text-light); padding-top: 1px; }
.whois-value { font-size: 13px; color: var(--text); word-break: break-all; line-height: 1.6; }
.whois-insight { margin-top: 14px; padding: 10px 14px; border-radius: 8px; font-size: 12.5px; line-height: 1.7; }
.whois-insight.warn { background: var(--warning-light); color: #9a3412; }
.whois-insight.fail { background: var(--danger-light); color: var(--danger); }
@media(min-width: 769px) {
  .whois-grid { grid-template-columns: 96px 1fr 96px 1fr; }
}
@media(max-width:768px) {
  .level-meter { padding: 0 20px 16px; }
}

/* ---------- 科普卡片 ---------- */
.edu-card { max-width: 860px; margin: 20px auto 0; }
.edu-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.edu-item { text-align: center; padding: 8px 4px; }
.edu-item strong { display: block; font-size: 14.5px; color: var(--text); margin: 12px 0 6px; }
.edu-item p { font-size: 12.5px; color: var(--text-secondary); line-height: 1.8; }
.edu-icon { width: 48px; height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin: 0 auto; }
.edu-icon svg { width: 24px; height: 24px; }
.edu-icon-blue { background: var(--primary-light); color: var(--primary); }
.edu-icon-green { background: var(--success-light); color: var(--success); }
.edu-icon-orange { background: var(--warning-light); color: var(--warning); }

/* ---------- 数据加载失败提示 ---------- */
.data-error {
  max-width: 860px;
  margin: 0 auto 20px;
  background: var(--danger-light);
  border: 1px solid rgba(220, 38, 38, 0.25);
  color: var(--danger);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 综合内容核验文本域 ---------- */
#verifyText {
  flex: 1;
  min-width: 0;
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  outline: none;
  resize: vertical;
  min-height: 96px;
  line-height: 1.7;
  transition: var(--transition);
}
#verifyText:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.chip-file { display: inline-flex; align-items: center; gap: 4px; border-style: dashed; }

/* ---------- 核验溯源页分享 ---------- */
.share-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
  border: 1.5px solid rgba(22, 163, 74, 0.25);
  border-radius: 12px; padding: 10px 16px;
  font-size: 12.5px; color: #166534; line-height: 1.7; margin-top: 4px;
}
.share-row a { color: var(--primary); font-weight: 700; word-break: break-all; }
.share-row button {
  border: 1.5px solid #16a34a; background: #fff; color: #16a34a;
  font-family: inherit; font-size: 12px; font-weight: 700;
  padding: 5px 12px; border-radius: 8px; cursor: pointer; flex-shrink: 0;
}
.share-row button:hover { background: #16a34a; color: #fff; }

/* ---------- 覆盖口径提示（块级居中版：无 flex，结构永不分片） ---------- */
div.coverage-tip {
  margin: 14px auto 0;
  max-width: 760px;
  font-size: 12.5px !important;
  font-weight: 400 !important;
  color: var(--text-light) !important;
  line-height: 1.7 !important;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 100px;
  padding: 6px 18px;
  text-align: center;
}
div.coverage-tip svg { vertical-align: -2px; margin-right: 6px; color: var(--text-light); }
div.coverage-tip .ct-text { font-size: 12.5px !important; color: var(--text-light) !important; }
div.coverage-tip strong { color: var(--primary) !important; font-weight: 600 !important; font-size: 12.5px !important; }
div.coverage-tip a { color: var(--primary) !important; font-weight: 400 !important; font-size: 12.5px !important; text-decoration: none; }
div.coverage-tip a:hover { text-decoration: underline; }
@media(max-width:768px) {
  div.coverage-tip { border-radius: 14px; text-align: left; }
}

/* ---------- 缓存结果横幅 ---------- */
.cache-banner {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  flex-wrap: wrap;
  background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
  border: 1.5px solid rgba(14, 165, 233, 0.3);
  border-radius: 12px; padding: 10px 16px;
  font-size: 12.5px; color: #0369a1; line-height: 1.7;
}
.cache-banner button {
  border: 1.5px solid #0ea5e9; background: #fff; color: #0284c7;
  font-family: inherit; font-size: 12px; font-weight: 700;
  padding: 6px 14px; border-radius: 8px; cursor: pointer; flex-shrink: 0;
  transition: var(--transition);
}
.cache-banner button:hover { background: #0ea5e9; color: #fff; }

/* ---------- 举报闭环（第十九条/二十条） ---------- */
.report-row { padding: 0 32px 22px; }
.report-btn {
  border: none; background: transparent; cursor: pointer;
  font-family: inherit; font-size: 12.5px; font-weight: 600; color: var(--text-light);
  padding: 6px 10px; border-radius: 8px; transition: var(--transition);
}
.report-btn:hover { background: var(--danger-light); color: var(--danger); }
.dm-mask {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(15, 23, 42, 0.55); backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.dm-modal {
  background: #fff; border-radius: 16px; max-width: 460px; width: 100%;
  padding: 26px 26px 22px; box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
  max-height: 90vh; overflow-y: auto;
}
.dm-modal h3 { font-size: 17px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.dm-sub { font-size: 12px; color: var(--text-light); margin-bottom: 16px; line-height: 1.7; }
.dm-modal label { display: block; font-size: 12.5px; font-weight: 700; color: var(--text); margin: 12px 0 6px; }
.dm-modal select, .dm-modal input, .dm-modal textarea {
  width: 100%; border: 1.5px solid var(--border); border-radius: 10px;
  padding: 10px 12px; font-family: inherit; font-size: 13.5px; color: var(--text);
  outline: none; transition: var(--transition); box-sizing: border-box;
}
.dm-modal select:focus, .dm-modal input:focus, .dm-modal textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.dm-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }
.dm-cancel { border: 1.5px solid var(--border); background: #fff; color: var(--text-secondary); padding: 9px 18px; border-radius: 10px; font-family: inherit; font-size: 13px; font-weight: 600; cursor: pointer; }
.dm-submit { border: none; background: var(--primary-gradient); color: #fff; padding: 9px 22px; border-radius: 10px; font-family: inherit; font-size: 13px; font-weight: 700; cursor: pointer; box-shadow: 0 4px 14px rgba(26,110,255,0.3); }
.dm-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.dm-result { margin-top: 14px; font-size: 12.5px; line-height: 1.8; padding: 10px 14px; border-radius: 10px; }
.dm-result.dm-ok { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.dm-result.dm-err { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.dm-result a { color: var(--primary); font-weight: 700; }
@media(max-width:768px) {
  .report-row { padding: 0 20px 16px; }
  .dm-modal { padding: 20px 18px 18px; }
}

/* ---------- 内嵌链接清单（内容模式） ---------- */
.url-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.url-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 10px;
  transition: var(--transition);
}
.url-item:hover { border-color: rgba(26, 110, 255, 0.35); background: var(--bg-warm); }
.url-badge {
  font-size: 11px; font-weight: 800; padding: 2px 9px;
  border-radius: 100px; flex-shrink: 0; letter-spacing: 1px;
}
.ub-trusted { background: #dcfce7; color: #16a34a; }
.ub-normal  { background: #e8f1ff; color: #1a6eff; }
.ub-caution { background: #fef3c7; color: #d97706; }
.ub-high    { background: #fee2e2; color: #dc2626; }
.ub-unknown { background: var(--bg-warm); color: var(--text-light); }
.url-link {
  background: none; border: none; font-family: inherit; font-size: 13px;
  color: var(--primary); cursor: pointer; text-align: left;
  padding: 0; word-break: break-all; font-weight: 600;
}
.url-link:hover { text-decoration: underline; }
.url-main-tag {
  font-size: 10px; font-weight: 800; color: #fff; letter-spacing: 1px;
  background: var(--primary-gradient); padding: 2px 9px; border-radius: 100px; flex-shrink: 0;
}

/* ---------- 人机验证（频率阈值触发） ---------- */
.captcha-row { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
.captcha-code {
  font-family: 'Courier New', monospace;
  font-size: 18px; font-weight: 800; letter-spacing: 7px;
  padding: 9px 8px 9px 15px;
  background: repeating-linear-gradient(45deg, #f1f5f9 0 6px, #e8eef5 6px 12px);
  border: 1.5px solid var(--border); border-radius: 8px;
  color: var(--primary-dark); user-select: none;
  transform: rotate(-2deg);
  min-width: 96px; text-align: center;
}
#captchaInput {
  width: 130px; height: 40px;
  border: 1.5px solid var(--border); border-radius: 8px;
  padding: 0 12px; font-family: inherit; font-size: 14px;
  outline: none; transition: var(--transition);
}
#captchaInput:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.captcha-refresh {
  border: none; background: transparent; color: var(--primary);
  font-family: inherit; font-size: 12.5px; font-weight: 600;
  cursor: pointer; padding: 6px 8px; border-radius: 6px;
}
.captcha-refresh:hover { background: var(--primary-light); }

/* ---------- 响应式 ---------- */
@media(max-width:768px) {
  .url-main { padding: 24px 0 56px; }
  .url-card { padding: 20px; border-radius: var(--radius-sm); }
  .risk-banner { padding: 18px 20px; gap: 12px; }
  .risk-icon { width: 38px; height: 38px; border-radius: 10px; }
  .reco-list { padding: 0 20px 18px; }
  .risk-factors { padding: 0 20px 16px; }
  .brand-card { gap: 12px; }
  .brand-badge { width: 46px; height: 46px; font-size: 20px; border-radius: 12px; }
  .brand-name { font-size: 15px; }
  .demo-steps { grid-template-columns: 1fr; }
  .edu-grid { grid-template-columns: 1fr; gap: 22px; }
  .demo-input-row { flex-direction: column; }
  .captcha-row { flex-wrap: wrap; }
  #captchaInput { flex: 1; min-width: 100px; width: auto; }
  .demo-input-row .btn { justify-content: center; }
  .action-btns .btn { width: 100%; justify-content: center; }
  .agree-row { align-items: flex-start; }
  .btn { padding: 12px 22px; font-size: 14px; }
}