/* ============================================================
   en.css · 英文站样式（en- 前缀，避免与中文站组件冲突）
   复用 theme-2021.css 的 :root 变量：--brand #0048D8 / --accent #F06000
   ============================================================ */

.en-body { background: #fff; color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
.en-body .wrap { width: min(1200px, calc(100% - 40px)); margin: 0 auto; }
.en-skip { position: absolute; left: -9999px; }
.en-skip:focus { left: 12px; top: 12px; z-index: 99; background: #fff; padding: 10px 14px; border: 1px solid var(--brand); }

/* ---------- 顶部 ---------- */
.en-topbar { background: var(--brand-deep); color: #d7e3ff; font-size: 12.5px; }
.en-topbar .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 8px 0; }
.en-topbar a { color: #fff; text-decoration: none; border-bottom: 1px solid rgba(255, 255, 255, .35); }
.en-topbar a:hover { border-bottom-color: #fff; }

.en-head { border-bottom: 1px solid var(--line); background: #fff; }
.en-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 0; flex-wrap: wrap; }
.en-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.en-logo img { width: 52px; height: 52px; object-fit: contain; }
.en-logo b { display: block; font-size: 20px; letter-spacing: 2.5px; line-height: 1.1; }
.en-logo small { display: block; font-size: 10px; letter-spacing: 2px; color: #8492a0; margin-top: 3px; }
.en-nav { display: flex; gap: 26px; flex-wrap: wrap; }
.en-nav a { font-size: 15px; color: var(--ink-soft); text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.en-nav a:hover { color: var(--brand); }
.en-nav a[aria-current="page"] { color: var(--brand); border-bottom-color: var(--brand); font-weight: 600; }
.en-call { font-size: 18px; font-weight: 700; color: var(--brand); text-decoration: none; letter-spacing: .5px; }

/* ---------- Hero ---------- */
.en-hero { padding: 54px 0 46px; background: linear-gradient(180deg, #f4f7fc 0%, #fff 100%); }
.en-hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.en-eyebrow { font-size: 12px; letter-spacing: 2.4px; text-transform: uppercase; color: var(--brand); font-weight: 700; margin: 0 0 12px; }
.en-hero h1 { font-size: clamp(30px, 4vw, 50px); line-height: 1.12; margin: 0 0 18px; letter-spacing: -.5px; }
.en-hero__lead { font-size: 17px; line-height: 1.7; color: var(--ink-soft); margin: 0 0 22px; }
.en-ticks { list-style: none; margin: 0 0 26px; padding: 0; }
.en-ticks li { position: relative; padding-left: 26px; margin-bottom: 9px; font-size: 14.5px; color: var(--ink-soft); line-height: 1.6; }
.en-ticks li::before { content: ""; position: absolute; left: 0; top: 7px; width: 9px; height: 9px; background: var(--brand); border-radius: 50%; box-shadow: 0 0 0 3px rgba(0, 72, 216, .12); }
.en-ticks--lg li { font-size: 15px; margin-bottom: 14px; }
.en-hero__actions { display: flex; gap: 12px; flex-wrap: wrap; }
.en-btn { display: inline-block; background: var(--brand); color: #fff; padding: 13px 26px; font-size: 15px; font-weight: 600; text-decoration: none; border-radius: 4px; border: 1px solid var(--brand); }
.en-btn:hover { background: var(--brand-deep); }
.en-btn--ghost { background: #fff; color: var(--brand); border-color: var(--brand); }
.en-btn--ghost:hover { background: var(--brand-soft); }
.en-hero__figure { margin: 0; }
.en-hero__figure img { width: 100%; height: auto; display: block; border-radius: 6px; box-shadow: 0 24px 48px -28px rgba(13, 27, 38, .45); }
.en-hero__figure figcaption { font-size: 12.5px; color: var(--muted); margin-top: 10px; }

/* ---------- 数据条 ---------- */
.en-facts { background: var(--brand); color: #fff; }
.en-facts__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; }
.en-facts__grid > div { padding: 26px 10px; text-align: center; border-right: 1px solid rgba(255, 255, 255, .18); }
.en-facts__grid > div:last-child { border-right: 0; }
.en-facts strong { display: block; font-size: 34px; line-height: 1; letter-spacing: -.5px; }
.en-facts em { font-style: normal; font-size: 15px; margin-left: 4px; opacity: .85; }
.en-facts span { display: block; font-size: 12.5px; opacity: .82; margin-top: 8px; }

/* ---------- 区块 ---------- */
.en-sec { padding: 58px 0; }
.en-sec--alt { background: #f5f7fb; }
.en-sec--dark { background: #161d26; color: #fff; }
.en-sec h2 { font-size: clamp(22px, 2.4vw, 30px); margin: 0 0 14px; letter-spacing: -.3px; }
.en-sec--dark h2, .en-sec--dark h3 { color: #fff; }
.en-lead { font-size: 15.5px; line-height: 1.75; color: var(--ink-soft); max-width: 860px; margin: 0 0 28px; }
.en-sec--dark .en-lead { color: #b9c6d6; }
.en-small { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ---------- 卡片 ---------- */
.en-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.en-card { background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--brand); padding: 24px 22px; border-radius: 4px; }
.en-card h3 { font-size: 18px; margin: 0 0 10px; }
.en-card p { font-size: 14px; line-height: 1.7; color: var(--ink-soft); margin: 0 0 12px; }
.en-card ul { margin: 0; padding-left: 18px; font-size: 13px; color: var(--muted); line-height: 1.75; }

/* ---------- 分类卡 ---------- */
.en-catgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.en-catcard { display: block; background: #fff; border: 1px solid var(--line); padding: 22px 20px; text-decoration: none; color: var(--ink); border-radius: 4px; }
.en-catcard:hover { border-color: var(--brand); box-shadow: 0 12px 30px -22px rgba(0, 72, 216, .6); }
.en-catcard b { display: block; font-size: 16px; margin-bottom: 4px; }
.en-catcard span { font-size: 12px; color: var(--brand); letter-spacing: .4px; }
.en-catcard p { font-size: 13px; line-height: 1.65; color: var(--muted); margin: 10px 0 0; }

/* ---------- 流程 ---------- */
.en-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; counter-reset: s; }
.en-steps li { border-top: 2px solid var(--line-strong); padding-top: 14px; }
.en-steps b { display: block; font-size: 13px; color: var(--accent); letter-spacing: 1.5px; margin-bottom: 8px; }
.en-steps h3 { font-size: 15.5px; margin: 0 0 8px; }
.en-steps p { font-size: 13px; line-height: 1.7; color: var(--muted); margin: 0; }

/* ---------- 质量区 ---------- */
.en-quality { display: grid; grid-template-columns: .85fr 1.15fr; gap: 46px; align-items: start; }
.en-quality__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 30px; }
.en-quality__grid h3 { font-size: 15.5px; margin: 0 0 7px; color: #fff; }
.en-quality__grid p { font-size: 13.5px; line-height: 1.7; color: #b9c6d6; margin: 0; }

/* ---------- 分栏 ---------- */
.en-split { display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: start; }
.en-note { background: #f5f7fb; border-left: 3px solid var(--accent); padding: 22px 22px 18px; border-radius: 0 4px 4px 0; }
.en-note h3 { font-size: 15px; margin: 0 0 10px; }
.en-note p { font-size: 13.5px; line-height: 1.75; color: var(--ink-soft); margin: 0 0 10px; }
.en-note a { color: var(--brand); }

/* ---------- 页头 ---------- */
.en-pagehead { padding: 46px 0 34px; background: #f4f7fc; border-bottom: 1px solid var(--line); }
.en-pagehead h1 { font-size: clamp(26px, 3.2vw, 40px); margin: 0 0 14px; letter-spacing: -.4px; }

/* ---------- 表格 ---------- */
.en-tablewrap { overflow-x: auto; margin: 0 0 16px; }
.en-table { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
.en-table th, .en-table td { border: 1px solid var(--line); padding: 11px 14px; text-align: left; vertical-align: top; }
.en-table thead th { background: #eef3fb; font-size: 13px; color: var(--ink-soft); }
.en-table tbody th { background: #fafbfd; width: 190px; font-weight: 600; }
.en-table--tight { font-size: 13px; }
.en-table--tight th, .en-table--tight td { padding: 9px 11px; }

/* ---------- 产品组 ---------- */
.en-partgroup { margin-bottom: 46px; }
.en-partgroup h2 { padding-bottom: 10px; border-bottom: 2px solid var(--brand); }
.en-parts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.en-part { border: 1px solid var(--line); padding: 20px; border-radius: 4px; background: #fff; }
.en-part h3 { font-size: 16px; margin: 0 0 8px; }
.en-part p { font-size: 13.5px; line-height: 1.7; color: var(--ink-soft); margin: 0 0 12px; }
.en-part dl { margin: 0; font-size: 12.5px; line-height: 1.65; }
.en-part dt { color: var(--brand); font-weight: 600; margin-top: 8px; }
.en-part dd { margin: 2px 0 0; color: var(--muted); }

/* ---------- 清单 ---------- */
.en-checklist { counter-reset: c; list-style: none; padding: 0; margin: 0 0 20px; }
.en-checklist li { counter-increment: c; position: relative; padding-left: 40px; margin-bottom: 12px; font-size: 14.5px; line-height: 1.65; color: var(--ink-soft); }
.en-checklist li::before { content: counter(c); position: absolute; left: 0; top: 0; width: 26px; height: 26px; border-radius: 50%; background: var(--brand-soft); color: var(--brand); font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; }

/* ---------- 联系卡 ---------- */
.en-contactgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.en-contactcard { border: 1px solid var(--line); border-top: 3px solid var(--brand); padding: 26px; border-radius: 4px; background: #fff; }
.en-contactcard h2 { font-size: 18px; margin: 0 0 14px; }
.en-contactcard p { font-size: 14px; line-height: 1.7; margin: 0 0 14px; color: var(--ink-soft); }
.en-contactcard b { font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); }
.en-contactcard a { color: var(--brand); }

/* ---------- FAQ ---------- */
.en-faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.en-faq summary { cursor: pointer; font-size: 15px; font-weight: 600; color: var(--ink); }
.en-faq summary::marker { color: var(--brand); }
.en-faq p { font-size: 14px; line-height: 1.75; color: var(--ink-soft); margin: 10px 0 0; }

/* ---------- CTA ---------- */
.en-cta { background: var(--brand); color: #fff; padding: 48px 0; }
.en-cta .wrap { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.en-cta h2 { font-size: clamp(21px, 2.3vw, 28px); margin: 0 0 10px; }
.en-cta p { font-size: 14.5px; line-height: 1.7; margin: 0; color: #dbe6ff; max-width: 620px; }
.en-cta__actions { display: flex; gap: 12px; flex-wrap: wrap; }
.en-cta .en-btn { background: #fff; color: var(--brand); border-color: #fff; }
.en-cta .en-btn--ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .7); }
.en-cta .en-btn--ghost:hover { background: rgba(255, 255, 255, .12); }

/* ---------- 页脚 ---------- */
.en-footer { background: #10161e; color: #9fb0c2; padding: 46px 0 22px; font-size: 13px; line-height: 1.7; }
.en-footer__grid { display: grid; grid-template-columns: 1.5fr .8fr 1fr 1.1fr; gap: 32px; }
.en-footer b { color: #fff; font-size: 14.5px; }
.en-footer h3 { color: #fff; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 12px; }
.en-footer ul { list-style: none; margin: 0; padding: 0; }
.en-footer li { margin-bottom: 8px; }
.en-footer a { color: #cddaea; text-decoration: none; }
.en-footer a:hover { color: #fff; text-decoration: underline; }
.en-footer__legal { margin-top: 14px; font-size: 12px; color: #7d8fa3; }
.en-footer__base { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-top: 1px solid #222c38; margin-top: 32px; padding-top: 16px; font-size: 12px; color: #7d8fa3; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .en-hero__grid, .en-split, .en-quality { grid-template-columns: 1fr; gap: 30px; }
  .en-catgrid, .en-parts { grid-template-columns: 1fr 1fr; }
  .en-cards { grid-template-columns: 1fr; }
  .en-steps { grid-template-columns: 1fr 1fr; }
  .en-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .en-body .wrap { width: calc(100% - 28px); }
  .en-topbar .wrap { font-size: 11.5px; }
  .en-head .wrap { gap: 10px; padding: 10px 0; }
  .en-logo b { font-size: 16px; letter-spacing: 1.5px; }
  .en-logo img { width: 42px; height: 42px; }
  .en-nav { width: 100%; gap: 14px; overflow-x: auto; padding-bottom: 4px; }
  .en-nav a { font-size: 14px; white-space: nowrap; }
  .en-call { font-size: 15px; }
  .en-hero { padding: 34px 0 30px; }
  .en-facts__grid { grid-template-columns: 1fr 1fr; }
  .en-facts__grid > div:nth-child(2) { border-right: 0; }
  .en-facts__grid > div { border-bottom: 1px solid rgba(255, 255, 255, .18); }
  .en-catgrid, .en-parts, .en-contactgrid, .en-quality__grid, .en-steps { grid-template-columns: 1fr; }
  .en-sec { padding: 40px 0; }
  .en-footer__grid { grid-template-columns: 1fr; gap: 26px; }
  .en-table { font-size: 12.5px; }
  .en-table th, .en-table td { padding: 8px 9px; }
}