/* ============ 基础重置 ============ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: #ebebeb;
  color: #1a1a1a;
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
button { font-family: inherit; }

/* ============ 主题变量 ============ */
:root {
  --theme-width: 1200px;
  --brand-red: #e4002b;
  --brand-red-dark: #c20024;
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --ink-mute: #767676;
  --line: #e2e2e2;
  --line-strong: #1a1a1a;
  --panel: #ffffff;
  --page-bg: #ebebeb;
  --header-h: 56px;
  --nav-h: 44px;
}

/* ============ 顶部一级栏 ============ */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 60;
}
.header-bar {
  max-width: var(--theme-width);
  margin: 0 auto;
  height: var(--header-h);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.hamburger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px 4px;
  color: var(--ink);
  font-size: 14px;
  flex: 0 0 auto;
}
.hamburger .bars { width: 20px; height: 14px; position: relative; flex: 0 0 auto; }
.hamburger .bars::before,
.hamburger .bars::after,
.hamburger .bars span {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--ink);
  transition: transform .25s ease, opacity .2s ease;
}
.hamburger .bars span { top: 6px; }
.hamburger .bars::before { top: 0; }
.hamburger .bars::after { top: 12px; }
.hamburger[aria-expanded="true"] .bars span { opacity: 0; }
.hamburger[aria-expanded="true"] .bars::before { transform: translateY(6px) rotate(45deg); }
.hamburger[aria-expanded="true"] .bars::after  { transform: translateY(-6px) rotate(-45deg); }

.brand {
  text-decoration: none;
  font-weight: 800;
  font-style: italic;
  letter-spacing: .5px;
  font-size: 22px;
  line-height: 1;
  color: var(--brand-red);
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  white-space: nowrap;
}
.brand .brand-sub {
  font-style: italic;
  font-weight: 800;
  color: var(--ink);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  flex: 0 0 auto;
}
.header-actions a {
  color: var(--ink);
  text-decoration: none;
  font-size: 13.5px;
  white-space: nowrap;
}
.header-actions a:hover { color: var(--brand-red); }
.header-actions .cart { display: inline-flex; align-items: center; gap: 6px; }
.cart-icon { width: 17px; height: 17px; flex: 0 0 auto; }

/* ============ 二级导航 ============ */
.site-nav {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: var(--header-h);
  z-index: 55;
}
.nav-list {
  max-width: var(--theme-width);
  margin: 0 auto;
  height: var(--nav-h);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  list-style: none;
  margin-block: 0;
}
.nav-list li { position: relative; }
.nav-list li + li::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 14px;
  background: #dcdcdc;
}
.nav-list a {
  display: block;
  padding: 12px 22px;
  color: var(--ink);
  text-decoration: none;
  font-size: 13.5px;
  white-space: nowrap;
  transition: color .2s ease;
}
.nav-list a:hover { color: var(--brand-red); }
.nav-list a.active { color: var(--brand-red); font-weight: 700; }

/* ============ 移动端抽屉 ============ */
.drawer-mask {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  opacity: 0; visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
  z-index: 70;
}
.drawer-mask.show { opacity: 1; visibility: visible; }
.drawer {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 78%;
  max-width: 320px;
  background: #fff;
  z-index: 80;
  transform: translateX(-100%);
  transition: transform .3s cubic-bezier(.4,0,.2,1);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.drawer.open { transform: translateX(0); }
.drawer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
.drawer-head .brand { font-size: 19px; }
.drawer-close {
  border: 0; background: none; font-size: 26px; line-height: 1;
  color: var(--ink-mute); cursor: pointer; padding: 4px 8px;
}
.drawer-nav { list-style: none; margin: 0; padding: 8px 0; }
.drawer-nav li + li { border-top: 1px solid #f0f0f0; }
.drawer-nav a {
  display: block; padding: 14px 20px; color: var(--ink);
  text-decoration: none; font-size: 15px;
}
.drawer-nav a.active { color: var(--brand-red); font-weight: 700; }
.drawer-foot { margin-top: auto; padding: 16px 20px 28px; border-top: 1px solid var(--line); }
.drawer-foot a {
  display: block; padding: 8px 0; color: var(--ink-soft);
  text-decoration: none; font-size: 14px;
}

/* ============ 面包屑 ============ */
.breadcrumb {
  max-width: var(--theme-width);
  margin: 0 auto;
  padding: 16px 20px 0;
  font-size: 12.5px;
  color: var(--ink-mute);
}
.breadcrumb a { color: var(--ink-mute); text-decoration: none; }
.breadcrumb a:hover { color: var(--brand-red); }
.breadcrumb .sep { margin: 0 8px; color: #bdbdbd; }

/* ============ 主题主体（1200px） ============ */
.theme {
  max-width: var(--theme-width);
  margin: 0 auto;
  padding: 14px 20px 48px;
}
.panel {
  background: var(--panel);
  padding: 34px 44px 40px;
  min-height: 600px;
}
.page-title {
  margin: 0 0 14px;
  font-size: 30px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--ink);
}
.page-title .hl { color: var(--brand-red); }
.lede {
  margin: 0 0 10px;
  font-size: 14.5px;
  color: var(--ink-soft);
  max-width: 900px;
}
.lede.sub { color: var(--ink-mute); font-size: 13.5px; margin-bottom: 4px; }

/* ============ 分区标题 ============ */
.faq-section { margin-top: 34px; }
.faq-section:first-of-type { margin-top: 26px; }
.section-title {
  margin: 0 0 6px;
  padding-bottom: 9px;
  font-size: 21px;
  font-weight: 700;
  color: var(--ink);
  border-bottom: 2px solid var(--line-strong);
}

/* ============ 手风琴 ============ */
.acc-item { border-bottom: 1px solid var(--line); }
.acc-head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 2px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  transition: color .2s ease;
}
.acc-head:hover { color: var(--brand-red); }
.acc-item.open > .acc-head { color: var(--brand-red); }
.acc-icon {
  flex: 0 0 auto;
  width: 20px;
  height: 16px;
  position: relative;
}
/* 收起状态：向下三角 */
.acc-icon::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 52%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid #7a7a7a;
  transition: opacity .2s ease;
}
/* 展开状态：向上三角 */
.acc-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 48%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 8px solid var(--brand-red);
  opacity: 0;
  transition: opacity .2s ease;
}
.acc-item.open .acc-icon::before { opacity: 0; }
.acc-item.open .acc-icon::after { opacity: 1; }

.acc-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .32s cubic-bezier(.4,0,.2,1);
}
.acc-item.open .acc-panel { grid-template-rows: 1fr; }
.acc-inner { overflow: hidden; }
/* 不支持 grid-template-rows 动画的浏览器（如旧版 iOS Safari）降级为 max-height */
.no-grid-anim .acc-panel {
  display: block;
  max-height: 0;
  overflow: hidden;
  transition: max-height .32s cubic-bezier(.4,0,.2,1);
}
.no-grid-anim .acc-item.open .acc-panel { max-height: 3000px; }
.acc-content {
  padding: 2px 2px 20px;
  font-size: 14.5px;
  color: var(--ink-soft);
  max-width: 920px;
}
.acc-content p { margin: 0 0 12px; }
.acc-content ul { margin: 0 0 12px; padding-left: 20px; }
.acc-content li { margin-bottom: 6px; }
.acc-content strong { color: var(--ink); }

/* ============ 表格 ============ */
.tbl-wrap { margin: 10px 0 16px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.hours {
  width: 100%;
  max-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
  background: #fff;
}
table.hours caption {
  text-align: left;
  font-size: 13.5px;
  color: var(--ink-mute);
  padding-bottom: 8px;
}
table.hours th,
table.hours td {
  border: 1px solid #dcdcdc;
  padding: 10px 14px;
  text-align: left;
}
table.hours thead th {
  background: #f2f2f2;
  font-weight: 600;
  color: var(--ink);
  font-size: 13.5px;
}
table.hours tbody tr:nth-child(even) td { background: #fafafa; }
table.hours tbody td:first-child { color: var(--ink); }

/* ============ 底部免责 ============ */
.disclaimer {
  margin-top: 34px;
  background: #f3f3f3;
  padding: 20px 24px;
  font-size: 12.5px;
  line-height: 1.85;
  color: #5c5c5c;
}
.disclaimer p { margin: 0 0 6px; }
.disclaimer p:last-child { margin-bottom: 0; }
.disclaimer b { color: #2f2f2f; }

/* ============ 移动端适配 ============ */
@media (max-width: 1024px) {
  :root { --theme-width: 100%; }
  .nav-list { justify-content: flex-start; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .nav-list::-webkit-scrollbar { display: none; }
  .panel { padding: 28px 24px 34px; }
}

@media (max-width: 760px) {
  body { font-size: 14.5px; }
  .header-bar { height: 52px; padding: 0 14px; }
  .header-actions { gap: 14px; }
  .header-actions .opt-store, .header-actions .opt-account { display: none; }
  .brand { font-size: 19px; }
  .hamburger span.label { display: none; }
  .site-nav { display: none; }
  .breadcrumb { padding: 12px 14px 0; font-size: 12px; }
  .theme { padding: 10px 12px 32px; }
  .panel { padding: 22px 16px 28px; box-shadow: none; }
  .page-title { font-size: 21px; }
  .lede { font-size: 13.5px; }
  .section-title { font-size: 17px; }
  .acc-head { padding: 14px 0; font-size: 14.5px; font-weight: 600; }
  .acc-content { font-size: 13.8px; padding-bottom: 16px; }
  table.hours { font-size: 13px; }
  table.hours th, table.hours td { padding: 8px 10px; }
  .disclaimer { padding: 16px; font-size: 11.8px; line-height: 1.8; }
}

@media (max-width: 400px) {
  .header-actions .cart span { display: none; }
  .page-title { font-size: 19px; }
}

/* 桌面端 hover 之外不做额外动画，移动端减少动效 */
@media (prefers-reduced-motion: reduce) {
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}