/* =========================================================================
 * 万事牛官网外壳样式（与龙虾社区共用同一套设计系统）
 * -------------------------------------------------------------------------
 * 设计原则（本次统一后）：
 *   1. 组件视觉不再单独重建：所有 .sb-* 组件完全使用 sb-runtime.css，
 *      与龙虾社区同一份样式、同一套维护入口；
 *   2. 外壳（导航/页脚）直接复用社区的 .nav / .footer 结构类与 styles.css；
 *   3. 本文件只保留万事牛站点特有的少量补充：
 *      文字品牌兜底、页脚二维码、联系表单、案例空状态、404、响应式；
 *   4. 颜色/字体/圆角全部取社区 token（--c-* / --font-* / --r-*），
 *      不再定义 --ox-* 视觉变量。
 * ========================================================================= */

.ox-site {
  background: var(--c-cream, #F5F0EB);
  color: var(--c-ink, #1A1A1A);
  font-family: var(--font-cn, "PingFang SC", "Microsoft YaHei", sans-serif);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

.ox-site *,
.ox-site *::before,
.ox-site *::after { box-sizing: border-box; }

/* =========================================================================
 * 导航：文字品牌兜底（上传 Logo 时直接显示图片）
 * ========================================================================= */
.ox-brand-fallback {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.ox-brand-fallback .ox-brand-mark {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--c-ink, #1A1A1A);
  color: #fff;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .02em;
}
.ox-brand-fallback .ox-brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.ox-brand-fallback .ox-brand-name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--c-ink, #1A1A1A);
}
.ox-brand-fallback .ox-brand-sub {
  margin-top: 3px;
  font-family: var(--font-num);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-gray, #8A8A8A);
}

/* =========================================================================
 * 页脚：文字品牌 / 微信二维码 / 社媒列
 * ========================================================================= */
.ox-footer-brandtext {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.ox-footer-mark {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--c-cream, #F5F0EB);
  color: var(--c-ink, #1A1A1A);
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 800;
}
.ox-footer-name {
  display: block;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.1;
}
.ox-footer-sub {
  display: block;
  margin-top: 3px;
  font-family: var(--font-num);
  font-size: 9px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .5);
}
.ox-footer-qr {
  display: block;
  width: 96px;
  height: 96px;
  margin-top: 6px;
  padding: 4px;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
}
/* 配置了社媒时页脚多一列；与社区 .footer-grid 同一结构，仅列数补充 */
.footer-grid.has-social { grid-template-columns: 1.6fr repeat(4, minmax(0, 1fr)); }

/* =========================================================================
 * 案例空状态
 * ========================================================================= */
.ox-empty {
  border: 1px solid var(--c-line, rgba(26, 26, 26, .1));
  background: var(--c-white, #fff);
  border-radius: var(--r-lg, 20px);
  padding: clamp(30px, 4.6vw, 56px);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(24px, 3vw, 48px);
  align-items: center;
}
.ox-empty-label {
  font-family: var(--font-num);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-coral, #E8401C);
  margin-bottom: 18px;
}
.ox-empty h3 {
  margin: 0 0 14px;
  font-size: clamp(23px, 2.6vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.ox-empty p {
  margin: 0 0 24px;
  color: #57534E;
  font-size: 15px;
  line-height: 1.85;
  max-width: 560px;
}
.ox-empty-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.ox-empty-side {
  border-left: 1px solid var(--c-line, rgba(26, 26, 26, .1));
  padding-left: clamp(20px, 3vw, 36px);
}
.ox-empty-side ul { margin: 0; padding: 0; list-style: none; }
.ox-empty-side li {
  padding: 13px 0;
  border-bottom: 1px solid var(--c-line, rgba(26, 26, 26, .1));
  font-size: 14px;
  color: #57534E;
  display: flex;
  gap: 12px;
  align-items: baseline;
}
.ox-empty-side li:last-child { border-bottom: 0; }
.ox-empty-side li span {
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 700;
  color: var(--c-coral, #E8401C);
  letter-spacing: .1em;
}

/* =========================================================================
 * 联系表单（与社区表单同一套输入/按钮观感）
 * ========================================================================= */
.ox-form-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
.ox-form {
  display: grid;
  gap: 18px;
  padding: clamp(24px, 3.4vw, 40px);
  background: var(--c-white, #fff);
  border: 1px solid var(--c-line, rgba(26, 26, 26, .1));
  border-radius: var(--r-lg, 20px);
}
.ox-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.ox-field { display: flex; flex-direction: column; gap: 8px; }
.ox-field label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--c-ink, #1A1A1A);
}
.ox-field label em { color: var(--c-coral, #E8401C); font-style: normal; }
.ox-field input,
.ox-field select,
.ox-field textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-cn, inherit);
  font-size: 14.5px;
  color: var(--c-ink, #1A1A1A);
  background: var(--c-white, #fff);
  border: 1px solid var(--c-line-strong, rgba(26, 26, 26, .18));
  border-radius: var(--r-sm, 12px);
  outline: none;
  transition: border-color .16s ease, box-shadow .16s ease;
}
.ox-field textarea { min-height: 132px; resize: vertical; line-height: 1.7; }
.ox-field input:focus,
.ox-field select:focus,
.ox-field textarea:focus {
  border-color: var(--c-coral, #E8401C);
  box-shadow: 0 0 0 3px rgba(232, 64, 28, .12);
}
.ox-form-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 4px; }
.ox-form-actions button {
  appearance: none;
  border: 2px solid transparent;
  background: var(--c-coral, #E8401C);
  color: #fff;
  font-family: var(--font-cn, inherit);
  font-size: 15px;
  font-weight: 700;
  padding: 13px 26px;
  border-radius: var(--r-pill, 999px);
  cursor: pointer;
  transition: background .18s ease, transform .12s ease;
}
.ox-form-actions button:hover { background: var(--c-coral-dark, #C5330F); }
.ox-form-actions button:active { transform: translateY(1px); }
.ox-form-note { font-size: 12.5px; color: var(--c-gray, #8A8A8A); line-height: 1.7; }
.ox-form-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.ox-alert {
  border: 1px solid var(--c-line, rgba(26, 26, 26, .1));
  border-left: 3px solid var(--c-coral, #E8401C);
  border-radius: var(--r-sm, 12px);
  background: var(--c-white, #fff);
  padding: 16px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: #57534E;
  margin-bottom: 22px;
}
.ox-alert.is-error { border-left-color: #A33A2A; }
.ox-alert strong { color: var(--c-ink, #1A1A1A); }
.ox-contact-aside {
  border-top: 1px solid var(--c-line-strong, rgba(26, 26, 26, .18));
  padding-top: 22px;
}
.ox-contact-aside h4 {
  margin: 0 0 18px;
  font-family: var(--font-num);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-coral, #E8401C);
}
.ox-contact-aside dl { margin: 0; display: grid; gap: 16px; }
.ox-contact-aside dt { font-size: 12.5px; color: var(--c-gray, #8A8A8A); margin-bottom: 4px; }
.ox-contact-aside dd { margin: 0; font-size: 15px; font-weight: 600; color: var(--c-ink, #1A1A1A); line-height: 1.6; }
.ox-contact-aside a { text-decoration: none; border-bottom: 1px solid rgba(232, 64, 28, .35); }
.ox-contact-aside a:hover { color: var(--c-coral, #E8401C); }

/* =========================================================================
 * 404
 * ========================================================================= */
.ox-404 {
  min-height: 58vh;
  display: flex;
  align-items: center;
  padding: clamp(64px, 9vw, 120px) 0;
}
.ox-404-code {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--c-coral, #E8401C);
  margin-bottom: 18px;
}
.ox-404 h1 {
  margin: 0 0 16px;
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.ox-404 p {
  margin: 0 0 28px;
  color: #57534E;
  font-size: 16px;
  line-height: 1.8;
  max-width: 560px;
}

/* =========================================================================
 * 顶部导航：万事牛品牌深色导航
 * -------------------------------------------------------------------------
 * 社区 .nav 是浅色毛玻璃；万事牛首屏是深色 Hero，直接复用会出现
 * 「浅色导航条 + 深色 Hero」的断层（H2.1 回归修复）。
 * 这里只在 .ox-site 作用域内覆盖颜色，社区导航保持原样。
 * ========================================================================= */
.ox-site .nav {
  background: var(--c-ink, #1A1A1A);
  border-bottom-color: rgba(255, 255, 255, .12);
}
.ox-site .nav-links a {
  color: rgba(255, 255, 255, .78);
}
.ox-site .nav-links a:hover {
  background: rgba(255, 255, 255, .10);
  color: #fff;
}
.ox-site .nav-links a.active {
  color: var(--c-coral, #E85C3F);
}
.ox-site .ox-brand-name {
  color: #fff;
}
.ox-site .ox-brand-sub {
  color: rgba(255, 255, 255, .55);
}
.ox-site .ox-brand-mark {
  background: #fff;
  color: var(--c-ink, #1A1A1A);
}
.ox-site .nav-toggle span {
  background: #fff;
}
.ox-site .mobile-menu {
  background: var(--c-ink, #1A1A1A);
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.ox-site .mobile-menu a {
  color: rgba(255, 255, 255, .85);
  border-bottom-color: rgba(255, 255, 255, .12);
}
.ox-site .mobile-menu a:hover {
  color: #fff;
}

/* =========================================================================
 * 响应式
 * ========================================================================= */
@media (max-width: 940px) {
  .footer-grid.has-social { grid-template-columns: 1fr 1fr; }
  .ox-form-wrap { grid-template-columns: 1fr; }
  .ox-empty { grid-template-columns: 1fr; }
  .ox-empty-side { border-left: 0; border-top: 1px solid var(--c-line, rgba(26, 26, 26, .1)); padding-left: 0; padding-top: 20px; }
}

@media (max-width: 720px) {
  .footer-grid.has-social { grid-template-columns: 1fr; }
  .ox-form-row { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .ox-site *,
  .ox-site *::before,
  .ox-site *::after { transition: none !important; animation: none !important; }
}