:root { --blue:#2563eb; --blue-dark:#1d4ed8; --bg:#f5f7fb; --card:#fff; --text:#111827; --muted:#6b7280; --border:#e5e7eb; --danger:#dc2626; --green:#16a34a; --warn:#b45309; }
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif; background:var(--bg); color:var(--text); }
a { color:var(--blue); text-decoration:none; }
code { font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; }
/* ============ 全站头部导航（固定顶部 + 悬浮下拉，所有页面统一样式） ============ */
.nav { position:sticky; top:0; z-index:100; background:#fff; border-bottom:1px solid var(--border); box-shadow:0 1px 3px rgba(17,24,39,.05); }
.nav-inner { max-width:1120px; margin:0 auto; padding:10px 20px; display:flex; align-items:center; gap:16px; flex-wrap:wrap; }
.logo { font-size:18px; font-weight:800; color:var(--blue); white-space:nowrap; }
.nav-menu { display:flex; align-items:center; gap:2px; flex:1; }
.nav-item { position:relative; }
.nav-link { display:inline-flex; align-items:center; gap:6px; padding:9px 12px; border-radius:8px; font-size:14px; font-weight:600; color:var(--text); white-space:nowrap; }
.nav-link:hover { color:var(--blue); background:#f3f6ff; }
.nav-item.active > .nav-link { color:var(--blue); background:#eef3ff; }
.caret { width:0; height:0; border-left:4px solid transparent; border-right:4px solid transparent; border-top:5px solid currentColor; transition:transform .15s; }
.nav-item.has-children:hover .caret,
.nav-item.has-children:focus-within .caret,
.nav-item.open .caret { transform:rotate(180deg); }
/* 悬浮桥：鼠标从主菜单移向下拉时不被空隙断开 */
.nav-item.has-children::after { content:''; position:absolute; left:0; right:0; top:100%; height:10px; }
.nav-dropdown { position:absolute; left:0; top:calc(100% + 8px); min-width:320px; background:#fff; border:1px solid var(--border); border-radius:12px; box-shadow:0 14px 30px rgba(17,24,39,.12); padding:8px; opacity:0; visibility:hidden; transform:translateY(-6px); transition:opacity .16s, transform .16s, visibility .16s; z-index:110; }
.nav-item.has-children:hover .nav-dropdown,
.nav-item.has-children:focus-within .nav-dropdown,
.nav-item.open .nav-dropdown { opacity:1; visibility:visible; transform:translateY(0); }
.nav-dropdown-item { display:block; padding:10px 12px; border-radius:9px; }
.nav-dropdown-item b { display:block; font-size:14px; color:var(--text); }
.nav-dropdown-item span { display:block; font-size:12px; color:var(--muted); margin-top:2px; line-height:1.6; }
.nav-dropdown-item:hover { background:#f3f6ff; }
.nav-dropdown-item:hover b { color:var(--blue); }
.nav-right { display:flex; align-items:center; gap:10px; font-size:14px; color:var(--muted); flex-wrap:wrap; }
.nav-toggle { display:none; width:38px; height:34px; padding:7px 8px; border:1px solid var(--border); border-radius:8px; background:#fff; cursor:pointer; }
.nav-toggle span { display:block; height:2px; margin:3px 0; background:var(--text); border-radius:2px; }
@media (max-width:900px) {
  .nav-inner { gap:10px; }
  .nav-toggle { display:block; margin-left:auto; }
  .nav-menu { display:none; order:3; width:100%; flex-direction:column; align-items:stretch; gap:2px; border-top:1px solid var(--border); padding-top:8px; }
  .nav-menu.open { display:flex; }
  .nav-item.has-children::after { display:none; }
  .nav-dropdown { position:static; opacity:1; visibility:visible; transform:none; box-shadow:none; border:0; padding:0 0 6px 12px; min-width:0; display:none; }
  .nav-item.open .nav-dropdown { display:block; }
  .nav-right { order:4; width:100%; }
}
.btn { display:inline-block; padding:9px 18px; border-radius:8px; font-size:14px; font-weight:600; cursor:pointer; border:1px solid transparent; background:var(--blue); color:#fff; transition:.15s; }
.btn:hover { background:var(--blue-dark); }
.btn:disabled { opacity:.6; cursor:not-allowed; }
.btn-primary { background:var(--blue); color:#fff; }
.btn-primary:hover { background:var(--blue-dark); }
.btn-outline { background:#fff; color:var(--blue); border-color:var(--border); }
.btn-outline:hover { background:#fff; border-color:var(--blue); }
.btn.sm { padding:6px 12px; font-size:13px; }
.btn.ghost { background:#fff; color:var(--blue); border:1px solid var(--border); }
.btn.ghost:hover { background:#fff; border-color:var(--blue); }
.btn.danger { background:#fff; color:var(--danger); border:1px solid var(--border); }
.btn.danger:hover { background:#fff; border-color:var(--danger); }
.user-chip { font-size:14px; color:var(--muted); display:flex; align-items:center; gap:8px; }
.footer { text-align:center; color:var(--muted); font-size:13px; padding:20px 24px; }

/* 布局 */
.wrap { max-width:1120px; margin:24px auto; padding:0 20px 40px; }
.wrap.narrow { max-width:520px; }
.card { background:var(--card); border:1px solid var(--border); border-radius:14px; padding:22px; margin-bottom:18px; }
.card h2 { font-size:16px; margin-bottom:6px; }
.card h2 + .sub { margin-bottom:16px; }
.sub { font-size:13px; color:var(--muted); }
.row { display:flex; gap:14px; flex-wrap:wrap; }
.row > * { flex:1; min-width:220px; }
.grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:14px; }
.between { display:flex; justify-content:space-between; align-items:center; gap:12px; flex-wrap:wrap; }
.mt { margin-top:14px; }

/* 表单 */
.field { margin-bottom:14px; }
.field label { display:block; font-size:13px; color:var(--muted); margin-bottom:6px; }
input, select, textarea { width:100%; padding:10px 12px; border:1px solid var(--border); border-radius:9px; font-size:14px; font-family:inherit; background:#fff; color:var(--text); }
input:focus, select:focus, textarea:focus { outline:none; border-color:var(--blue); }
textarea { min-height:110px; resize:vertical; font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:12px; }
.inline { display:flex; gap:10px; align-items:center; }
.inline input { flex:1; }
.checkbox { display:flex; align-items:flex-start; gap:8px; font-size:13px; color:var(--muted); }
.checkbox input { width:auto; margin-top:2px; }
.form-actions { display:flex; gap:10px; align-items:center; margin-top:6px; }
.hint { font-size:12px; color:var(--muted); margin-top:6px; }


/* 提示 */
.alert { padding:10px 14px; border-radius:9px; font-size:13px; margin-bottom:14px; display:none; }
.alert.show { display:block; }
.alert.ok { background:#ecfdf5; color:#047857; border:1px solid #a7f3d0; }
.alert.err { background:#fef2f2; color:#b91c1c; border:1px solid #fecaca; }
.toast { position:fixed; left:50%; top:24px; transform:translateX(-50%); background:#111827; color:#fff; padding:11px 20px; border-radius:9px; font-size:14px; z-index:9999; opacity:0; transition:.2s; pointer-events:none; }
.toast.show { opacity:1; }
.tag { display:inline-block; padding:2px 9px; border-radius:999px; font-size:12px; }
.tag.ok { background:#ecfdf5; color:#047857; }
.tag.off { background:#fef2f2; color:#b91c1c; }
.tag.warn { background:#fffbeb; color:var(--warn); }
.tag.info { background:#eff6ff; color:var(--blue); }

/* 表格 / 列表 */
table { width:100%; border-collapse:collapse; font-size:13px; }
th, td { padding:9px 10px; border-bottom:1px solid var(--border); text-align:left; }
th { background:#f9fafb; color:var(--muted); font-weight:600; white-space:nowrap; }
.site-item { border:1px solid var(--border); border-radius:12px; padding:16px; background:#fff; display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap; margin-bottom:12px; }
.site-item .name { font-weight:700; font-size:15px; }
.site-item .meta { font-size:12px; color:var(--muted); margin-top:6px; line-height:1.7; }
.site-item .ops { display:flex; gap:8px; align-items:center; flex-wrap:wrap; }
.copy-box { display:flex; gap:8px; align-items:center; background:#f9fafb; border:1px dashed var(--border); border-radius:9px; padding:10px 12px; font-size:13px; }
.copy-box code { flex:1; word-break:break-all; }
.stat { background:#fff; border:1px solid var(--border); border-radius:12px; padding:16px; }
.stat .label { font-size:13px; color:var(--muted); }
.stat .value { font-size:20px; font-weight:800; color:var(--blue); margin-top:6px; }
.progress { height:8px; background:#e5e7eb; border-radius:999px; overflow:hidden; margin-top:10px; }
.progress span { display:block; height:100%; background:var(--blue); }
.tabs { display:flex; gap:6px; border-bottom:1px solid var(--border); margin-bottom:18px; flex-wrap:wrap; }
.tabs button { background:none; border:none; padding:10px 14px; font-size:14px; color:var(--muted); cursor:pointer; border-bottom:2px solid transparent; font-family:inherit; }
.tabs button.active { color:var(--blue); font-weight:700; border-bottom-color:var(--blue); }
.pane { display:none; }
.pane.active { display:block; }
.steps { font-size:13px; color:var(--muted); line-height:1.9; padding-left:18px; }
.file-list { max-height:340px; overflow:auto; border:1px solid var(--border); border-radius:9px; }
.progress-log { max-height:180px; overflow:auto; font-size:12px; color:var(--muted); background:#f9fafb; border-radius:9px; padding:10px; margin-top:12px; line-height:1.8; display:none; }
.progress-log.show { display:block; }
pre.code { background:#0f172a; color:#e2e8f0; padding:14px; border-radius:10px; font-size:12px; overflow:auto; line-height:1.7; }

/* 首页 */
.hero { text-align:center; padding:60px 20px 40px; }
.hero h1 { font-size:34px; line-height:1.3; margin-bottom:14px; }
.hero p { color:var(--muted); font-size:15px; max-width:640px; margin:0 auto 26px; line-height:1.8; }
.hero .actions { display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }
.features { max-width:1120px; margin:0 auto; padding:0 20px 40px; }
.feature { background:#fff; border:1px solid var(--border); border-radius:14px; padding:20px; }
.feature h3 { font-size:15px; margin-bottom:8px; }
.feature p { font-size:13px; color:var(--muted); line-height:1.8; }

/* ============ 套餐页（/packages：A/B/C/D × 国内版 / 外贸版） ============ */
.pkg-hero { text-align:center; padding:34px 0 10px; }
.pkg-hero h1 { font-size:28px; margin-bottom:12px; }
.pkg-hero p { color:var(--muted); font-size:14px; max-width:860px; margin:0 auto 18px; line-height:1.9; }
.pkg-hero .tabs { justify-content:center; margin-bottom:10px; }
.pkg-hero .sub { max-width:860px; margin:0 auto; line-height:1.8; }
.plan-grid { grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); align-items:start; }
.plan-card { background:var(--card); border:1px solid var(--border); border-radius:14px; padding:20px; display:flex; flex-direction:column; }
.plan-card.active { border-color:var(--blue); box-shadow:0 0 0 2px rgba(37,99,235,.12); }
.plan-name { font-size:16px; font-weight:800; }
.plan-title-line { font-size:12px; color:var(--muted); margin-top:4px; }
.plan-price { font-size:26px; font-weight:800; color:var(--blue); margin:12px 0 4px; }
.plan-unit { font-size:13px; font-weight:600; color:var(--muted); margin-left:4px; }
.plan-summary { font-size:13px; color:var(--muted); line-height:1.8; margin-bottom:12px; }
.plan-spec { margin-bottom:12px; }
.plan-spec th { width:88px; background:#f9fafb; font-size:12px; }
.plan-spec td { font-size:12px; }
.plan-features, .plan-limits { list-style:none; font-size:12px; line-height:1.9; margin-bottom:10px; }
.plan-features li::before { content:'✓ '; color:var(--green); font-weight:700; }
.plan-limits li::before { content:'! '; color:var(--warn); font-weight:700; }
.plan-usecase { font-size:12px; color:var(--muted); margin-bottom:10px; }
.plan-actions { margin-top:auto; display:flex; gap:8px; }
.plan-actions .btn { width:100%; text-align:center; }

.d-base { display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.d-base-label { font-size:13px; color:var(--muted); }
.chip { display:inline-block; padding:4px 12px; margin:2px 6px 2px 0; border-radius:999px; background:#eff6ff; color:var(--blue); font-size:12px; }
.lang-row { display:flex; gap:10px; align-items:center; margin-bottom:10px; flex-wrap:wrap; }
.lang-row-no { flex:0 0 88px; font-size:13px; color:var(--muted); }
.lang-row select { flex:1; min-width:220px; }
.quote-box { background:#f9fafb; border:1px dashed var(--border); border-radius:12px; padding:16px; margin-top:16px; }
.quote-title { font-size:13px; color:var(--muted); margin-bottom:8px; }
.quote-list { list-style:none; font-size:13px; line-height:1.9; }
.quote-list li::before { content:'· '; color:var(--blue); font-weight:700; }
.quote-total { font-size:22px; font-weight:800; color:var(--blue); margin-top:8px; }
.quote-formula { font-size:12px; color:var(--muted); margin-top:6px; line-height:1.8; }
.quote-actions { display:flex; gap:12px; align-items:center; flex-wrap:wrap; margin-top:14px; }
.table-scroll { overflow:auto; }
.table-scroll table { min-width:620px; }
.ex-price { font-weight:800; color:var(--blue); font-size:14px; }
#compareTable th:first-child { width:110px; }

/* ============ 首页套餐展示（双 Tab：外贸网站 / 国内网站） ============ */
.home-plans { max-width:1120px; margin:0 auto; padding:0 20px 40px; }
.home-plans-head { text-align:center; margin-bottom:16px; }
.home-plans-head h2 { font-size:24px; margin-bottom:8px; }
.home-plans-head p { color:var(--muted); font-size:14px; max-width:820px; margin:0 auto; line-height:1.9; }
/* ============ 首页：网站迁移服务介绍区块（页面最上方独立区块） ============ */
.migrate-block { max-width:1120px; margin:24px auto 8px; padding:0 20px; }
.migrate-block-inner { background:linear-gradient(135deg,#eff6ff 0%,#f7faff 60%,#fff 100%); border:1px solid #c7d7f7; border-radius:16px; padding:24px 26px; }
.migrate-tag { display:inline-block; padding:3px 10px; border-radius:999px; background:var(--blue); color:#fff; font-size:12px; font-weight:700; }
.migrate-block h2 { font-size:22px; margin:10px 0 8px; }
.migrate-block .migrate-text { font-size:14px; color:var(--text); line-height:1.9; max-width:860px; }
.migrate-block .migrate-text b, .migrate-block .migrate-text strong { color:var(--blue); }
.migrate-block .actions { display:flex; gap:10px; flex-wrap:wrap; margin-top:16px; }
@media (max-width:640px) { .migrate-block-inner { padding:18px; } .migrate-block h2 { font-size:19px; } }

/* 首页套餐模块：线路提示 */
.home-line-notice { text-align:center; line-height:1.8; margin-bottom:18px; }
/* 第一行：A / B / C 三卡同行 */
.plan-row-3 { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; align-items:stretch; }
/* 第二行：D 套餐独立大卡片（自定义多语言套餐） */
.plan-wide { border:1px solid #c7d7f7; background:linear-gradient(180deg,#f7faff 0%,#fff 42%); }
.plan-wide-head { display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap; align-items:flex-start; }
.plan-wide-head .plan-intro { flex:1 1 320px; min-width:280px; }
.plan-wide-spec { flex:0 0 360px; max-width:100%; }
.plan-wide-spec .plan-spec { margin-bottom:0; }
.plan-wide-body { margin-top:18px; }
@media (max-width:900px) {
  .plan-row-3 { grid-template-columns:minmax(0,1fr); }
}
.d-calc { border:1px dashed var(--border); border-radius:12px; padding:16px; background:#fff; }
.tier-hint { font-size:12px; color:var(--muted); margin-top:4px; line-height:1.7; }
/* D 套餐：语言复选多选框（紧凑小字，一行 4~5 个，自动换行） */
.d-field > b { display:block; font-size:14px; margin-bottom:8px; }
.lang-checks { max-width:780px; display:grid; grid-template-columns:repeat(5, minmax(0, 1fr)); gap:6px; }
@media (max-width:1100px) { .lang-checks { grid-template-columns:repeat(4, minmax(0, 1fr)); } }
@media (max-width:760px) { .lang-checks { grid-template-columns:repeat(3, minmax(0, 1fr)); } }
@media (max-width:480px) { .lang-checks { grid-template-columns:repeat(2, minmax(0, 1fr)); } }
.lang-check { display:flex; align-items:center; gap:4px; padding:5px 8px; border:1px solid var(--border); border-radius:7px; font-size:12px; line-height:1.25; cursor:pointer; background:#fff; overflow:hidden; }
.lang-check > span { white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.lang-check:hover { border-color:var(--blue); }
.lang-check input { width:auto; margin:0; flex:0 0 auto; }
.lang-check.is-base { background:#f3f6ff; border-color:#c7d7f7; }
.lang-check:has(input:checked) { border-color:var(--blue); box-shadow:0 0 0 1px rgba(37,99,235,.18); color:var(--blue); font-weight:600; }
.lang-check:has(input:disabled:not(:checked)) { opacity:.5; cursor:not-allowed; }
.lang-base-tag { margin-left:auto; font-size:10.5px; color:var(--blue); font-style:normal; flex:0 0 auto; }
/* D 套餐说明文字（配置组件下方） */
.d-note { margin-top:16px; padding:12px 14px; background:#f8fafc; border:1px solid var(--border); border-left:3px solid var(--blue); border-radius:10px; font-size:12.5px; color:var(--muted); line-height:1.9; }
/* D 套餐：产品数量单选框 */
.product-radios { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; }
@media (max-width:640px) { .product-radios { grid-template-columns:minmax(0,1fr); } }
.radio-card { display:block; padding:12px; border:1px solid var(--border); border-radius:10px; cursor:pointer; background:#fff; }
.radio-card:hover { border-color:var(--blue); }
.radio-card:has(input:checked) { border-color:var(--blue); background:#f7faff; box-shadow:0 0 0 1px rgba(37,99,235,.18); }
.radio-card input { width:auto; margin:0 6px 0 0; }
.radio-card b { font-size:14px; color:var(--text); }
.radio-card span { display:block; font-size:12px; color:var(--muted); margin-top:4px; padding-left:22px; }
.radio-card:has(input:checked) b { color:var(--blue); }