:root {
  --wb-primary: #2d6dff;
  --wb-primary-dark: #1f54cb;
  --wb-line: #d9e4fb;
  --wb-bg: #f4f8ff;
  --wb-ink: #18253d;
  --wb-muted: #5e7292;
  --wb-wrap: 1200px;
  --wb-topbar-h: 68px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--wb-ink);
  background: linear-gradient(180deg, #f1f6ff 0, #ffffff 380px);
  line-height: 1.7;
  padding-top: var(--wb-topbar-h);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wb-wrap { max-width: var(--wb-wrap); margin: 0 auto; padding: 0 18px; }
.wb-main { padding: 22px 0 30px; }
.wb-skip { position: absolute; left: -9999px; }
.wb-skip:focus { left: 10px; top: 10px; z-index: 999; background: #111; color: #fff; padding: 8px 10px; }

.wb-topbar {
  position: fixed; left: 0; right: 0; top: 0; z-index: 90;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--wb-line);
}
.wb-topbar__inner { height: var(--wb-topbar-h); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.wb-brand__mark { font-size: 22px; font-weight: 800; color: var(--wb-primary); }
.wb-topnav { display: flex; align-items: center; gap: 8px; }
.wb-topnav a { font-size: 14px; padding: 7px 12px; border-radius: 999px; color: #355174; }
.wb-topnav a:hover { color: var(--wb-primary); background: #eef4ff; }
.wb-topbar__right { display: flex; align-items: center; gap: 10px; }
.wb-menu { display: none; border: 1px solid var(--wb-line); background: #fff; border-radius: 10px; padding: 8px; }
.wb-menu svg { width: 20px; height: 20px; }

.wb-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 18px; border-radius: 12px; border: 1px solid #cfdcf2;
  background: #fff; color: #284061; font-weight: 600;
}
.wb-btn--primary { color: #fff !important; border-color: var(--wb-primary); background: linear-gradient(135deg, #2d6dff, #4c89ff); }
.wb-btn--primary:hover { background: linear-gradient(135deg, var(--wb-primary-dark), #2d6dff); }
.wb-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

.yd-hero {
  border: 1px solid var(--wb-line);
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff, #f7faff);
  box-shadow: 0 18px 40px rgba(45,109,255,.08);
  padding: 30px 24px;
}
.yd-hero h1 { margin: 0; font-size: clamp(30px, 4.4vw, 52px); line-height: 1.14; }
.yd-hero p { margin: 12px 0 0; color: var(--wb-muted); }
.yd-translator {
  margin-top: 18px; border: 1px solid var(--wb-line); border-radius: 14px;
  background: #fff; padding: 14px;
}
.yd-translator__bar {
  display: flex; gap: 8px; flex-wrap: wrap; border-bottom: 1px solid #e5edfd; padding-bottom: 10px;
}
.yd-translator__bar span { font-size: 13px; background: #f2f6ff; border: 1px solid #d4e1fb; border-radius: 999px; padding: 4px 10px; color: #42608a; }
.yd-translator__body { margin-top: 12px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.yd-translator__panel { min-height: 130px; border: 1px solid #dce7fc; border-radius: 10px; background: #fafcff; padding: 12px; }
.yd-translator__panel p { margin: 0; color: #617a9f; }

.wb-block { border: 1px solid var(--wb-line); border-radius: 14px; background: #fff; padding: 22px; margin-top: 16px; }
.wb-block h2 { margin: 0 0 10px; font-size: clamp(24px, 3.1vw, 34px); line-height: 1.2; }
.wb-grid { display: grid; gap: 14px; }
.wb-grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.wb-grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.wb-grid--4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.wb-grid--articles { grid-template-columns: repeat(2, minmax(0,1fr)); }
.wb-card { border: 1px solid var(--wb-line); border-radius: 12px; padding: 16px; background: #fff; }
.wb-card h3 { margin: 0 0 6px; font-size: 19px; }
.wb-card p { margin: 0; color: #5b7292; }
.wb-card a { margin-top: 10px; display: inline-flex; }
.wb-card--lg { padding: 20px; }

.wb-tagbar { margin-top: 14px; display: flex; gap: 8px; flex-wrap: wrap; }
.wb-tag { border: 1px solid #c9dafb; background: #f2f7ff; border-radius: 999px; padding: 5px 10px; font-size: 13px; color: #345987; }
.wb-price { border: 1px solid var(--wb-line); border-radius: 12px; overflow: hidden; }
.wb-price table { width: 100%; border-collapse: collapse; }
.wb-price th, .wb-price td { border-bottom: 1px solid #e4edfc; padding: 11px 10px; text-align: left; font-size: 14px; }
.wb-price th { background: #f1f6ff; color: #2a4469; }

.wb-article { border: 1px solid var(--wb-line); border-radius: 12px; overflow: hidden; background: #fff; }
.wb-article__img img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.wb-article__body { padding: 14px; display: grid; gap: 8px; }
.wb-article__body h2, .wb-article__body h3 { margin: 0; font-size: 20px; line-height: 1.34; }
.wb-article__body p { margin: 0; color: #5c7190; }
.wb-article__body span { color: #7387a5; font-size: 13px; }

.wb-shell { display: grid; grid-template-columns: 240px minmax(0,1fr); gap: 18px; }
.wb-sidebar { border: 1px solid var(--wb-line); border-radius: 12px; padding: 14px; background: #fff; position: sticky; top: calc(var(--wb-topbar-h) + 12px); height: fit-content; }
.wb-sidebar h2 { margin: 0 0 8px; font-size: 16px; }
.wb-sidebar a { display: block; padding: 7px 8px; border-radius: 8px; color: #3a5577; }
.wb-sidebar a:hover { background: #eff5ff; color: var(--wb-primary); }
.wb-content { display: grid; gap: 14px; }
.wb-breadcrumb { display: flex; gap: 7px; flex-wrap: wrap; color: #7084a2; font-size: 13px; margin: 0 0 8px; }
.wb-toolbar { border: 1px solid var(--wb-line); border-radius: 12px; padding: 10px; display: flex; flex-wrap: wrap; gap: 8px; }
.wb-toolbar a { border: 1px solid #d0def8; background: #f3f7ff; border-radius: 999px; padding: 6px 11px; font-size: 13px; }
.wb-toolbar a:hover { color: var(--wb-primary); }
.wb-meta { color: #6b81a0; font-size: 14px; margin-top: 8px; }
.wb-articleBody { border: 1px solid var(--wb-line); border-radius: 12px; background: #fff; padding: 18px; }
.wb-intro { border: 1px solid #cdddfb; border-left: 4px solid var(--wb-primary); border-radius: 10px; background: #f0f6ff; padding: 12px; margin-bottom: 14px; color: #3d5373; }
.wb-prose a { color: var(--wb-primary); text-decoration: underline; }
.wb-cta { margin-top: 18px; border: 1px solid #d5e2fb; border-radius: 12px; background: #f5f9ff; padding: 16px; }
.wb-pn { margin-top: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.wb-disabled { opacity: .58; pointer-events: none; }
.wb-btn--block { width: 100%; }
.wb-pagination { margin-top: 16px; display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; }

.wb-footer { margin-top: 24px; background: #10284c; color: rgba(255,255,255,.9); padding-top: 22px; }
.wb-foot-cta { border: 1px solid rgba(255,255,255,.15); border-radius: 14px; background: linear-gradient(135deg, rgba(45,109,255,.45), rgba(73,142,255,.24)); padding: 20px; display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; }
.wb-foot-cta__k { margin: 0; color: #d4e5ff; font-weight: 700; }
.wb-foot-cta h2 { margin: 8px 0 0; color: #fff; }
.wb-foot-cta p { margin: 8px 0 0; color: rgba(255,255,255,.8); }
.wb-foot-grid { margin-top: 18px; display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 14px; }
.wb-foot-grid h3 { margin: 0 0 8px; color: #fff; }
.wb-foot-grid p, .wb-foot-grid ul { margin: 0; color: rgba(255,255,255,.78); }
.wb-foot-bottom { margin-top: 16px; border-top: 1px solid rgba(255,255,255,.14); padding: 12px 0; }
.wb-foot-bottom__in { display: flex; justify-content: space-between; align-items: center; gap: 10px; font-size: 14px; }

@media (max-width: 1024px) {
  :root { --wb-topbar-h: 62px; }
  .wb-menu { display: inline-flex; }
  .wb-topnav { position: absolute; top: calc(var(--wb-topbar-h) - 1px); left: 12px; right: 12px; border: 1px solid var(--wb-line); border-radius: 12px; background: #fff; padding: 10px; display: grid; }
  .wb-topnav[aria-hidden="true"] { display: none; }
  .yd-translator__body, .wb-grid--2, .wb-grid--3, .wb-grid--4, .wb-grid--articles, .wb-shell, .wb-pn, .wb-foot-grid, .wb-foot-cta { grid-template-columns: 1fr; }
  .wb-sidebar { position: static; }
}
@media (max-width: 640px) {
  .wb-btn { width: 100%; }
}