:root {
  --l3-green: #06C755;
  --l3-green-dark: #05a848;
  --l3-ink: #111827;
  --l3-text: #374151;
  --l3-muted: #6b7280;
  --l3-line: #e5e7eb;
  --l3-soft: #f3faf6;
  --l3-max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--l3-text);
  background: #fff;
  line-height: 1.7;
}
a { color: var(--l3-green-dark); text-decoration: none; }
a:hover { color: var(--l3-green); }
img { max-width: 100%; height: auto; display: block; }

.l3-skip { position: absolute; left: -9999px; }
.l3-skip:focus { left: 12px; top: 12px; z-index: 99; padding: 8px 12px; background: var(--l3-green); color: #fff; }

.l3-container { width: 100%; max-width: var(--l3-max); margin: 0 auto; padding: 0 24px; }
.l3-container--narrow { max-width: 760px; }

.l3-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--l3-line);
}
.l3-header__inner { display: flex; align-items: center; gap: 16px; min-height: 68px; }
.l3-brand { display: flex; align-items: center; gap: 10px; color: var(--l3-ink); }
.l3-brand:hover { color: var(--l3-ink); }
.l3-brand__mark {
  width: 32px; height: 32px; border-radius: 10px; background: var(--l3-green); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-weight: 800;
}
.l3-brand strong { display: block; font-size: 16px; line-height: 1.1; }
.l3-brand small { display: block; font-size: 11px; color: var(--l3-muted); }
.l3-nav { display: flex; flex-wrap: wrap; gap: 2px; flex: 1; }
.l3-nav a { padding: 8px 10px; color: var(--l3-text); font-size: 14px; border-radius: 8px; }
.l3-nav a:hover { background: var(--l3-soft); color: var(--l3-ink); }
.l3-nav-toggle {
  display: none; margin-left: auto; flex-direction: column; gap: 5px;
  border: 0; background: none; padding: 8px; cursor: pointer;
}
.l3-nav-toggle span { width: 20px; height: 2px; background: #111; display: block; }

.l3-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 24px; border-radius: 999px; background: var(--l3-green);
  color: #fff !important; font-weight: 700; font-size: 14px; border: 2px solid var(--l3-green);
}
.l3-btn:hover { background: var(--l3-green-dark); border-color: var(--l3-green-dark); color: #fff !important; }
.l3-btn--sm { padding: 8px 16px; font-size: 13px; margin-left: auto; }
.l3-btn--ghost { background: #fff; color: var(--l3-ink) !important; }
.l3-btn--ghost:hover { background: var(--l3-soft); color: var(--l3-ink) !important; }
.l3-btn--white { background: #fff; color: var(--l3-green-dark) !important; border-color: #fff; }

.l3-hero { padding: 56px 0 40px; background: linear-gradient(180deg, #f3faf6 0%, #fff 100%); }
.l3-hero__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.l3-hero__badge {
  display: inline-block; margin: 0 0 12px; padding: 4px 12px;
  background: #dcfce7; color: var(--l3-green-dark); border-radius: 999px; font-size: 12px; font-weight: 700;
}
.l3-hero__kicker { margin: 0 0 8px; color: var(--l3-muted); font-size: 15px; }
.l3-hero h1 { margin: 0 0 14px; font-size: clamp(32px, 5vw, 52px); line-height: 1.15; color: var(--l3-ink); }
.l3-hero__lead { margin: 0 0 24px; max-width: 520px; }
.l3-hero__actions { display: flex; flex-wrap: wrap; gap: 10px; }

.l3-chat {
  background: #fff; border-radius: 20px; padding: 18px;
  box-shadow: 0 20px 50px rgba(6,199,85,.12); border: 1px solid var(--l3-line);
}
.l3-chat__bar { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; font-size: 13px; }
.l3-chat__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--l3-green); }
.l3-chat__bar em { margin-left: auto; color: var(--l3-green); font-style: normal; font-size: 12px; }
.l3-chat__msg { max-width: 80%; padding: 10px 14px; border-radius: 16px; margin-bottom: 10px; font-size: 14px; }
.l3-chat__msg--in { background: #f3f4f6; }
.l3-chat__msg--out { background: #dcfce7; margin-left: auto; }
.l3-chat__stickers { margin-top: 8px; font-size: 12px; color: var(--l3-muted); text-align: center; }

.l3-stats { border-top: 1px solid var(--l3-line); border-bottom: 1px solid var(--l3-line); padding: 28px 0; }
.l3-stats__row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; text-align: center; }
.l3-stats strong { display: block; font-size: 28px; color: var(--l3-green-dark); }
.l3-stats span { font-size: 13px; color: var(--l3-muted); }

.l3-section { padding: 64px 0; }
.l3-section--soft { background: var(--l3-soft); }
.l3-head { text-align: center; margin-bottom: 32px; }
.l3-head h2, h2.l3-head { margin: 0 0 8px; font-size: clamp(22px, 3vw, 30px); color: var(--l3-ink); }
.l3-head p { margin: 0; color: var(--l3-muted); }
.l3-head--row { display: flex; justify-content: space-between; align-items: baseline; text-align: left; }
.l3-more { font-size: 14px; color: var(--l3-muted); }

.l3-feat { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.l3-feat article {
  padding: 24px; border: 1px solid var(--l3-line); border-radius: 16px; background: #fff;
}
.l3-feat__ico {
  display: inline-flex; width: 36px; height: 36px; border-radius: 10px;
  background: var(--l3-soft); color: var(--l3-green-dark); font-weight: 800; font-size: 12px;
  align-items: center; justify-content: center; margin-bottom: 12px;
}
.l3-feat h3 { margin: 0 0 8px; font-size: 17px; }
.l3-feat p { margin: 0; font-size: 14px; color: var(--l3-muted); }

.l3-mag { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; }
.l3-mag a { color: inherit; display: block; }
.l3-mag__media { position: relative; border-radius: 16px; overflow: hidden; aspect-ratio: 16/9; background: #ddd; }
.l3-mag__media img { width: 100%; height: 100%; object-fit: cover; }
.l3-mag__media time {
  position: absolute; left: 12px; bottom: 12px;
  background: var(--l3-green); color: #fff; font-size: 12px; padding: 4px 10px; border-radius: 999px;
}
.l3-mag__hero h3 { margin: 14px 0 8px; font-size: 22px; }
.l3-mag__hero p, .l3-mag__side p {
  margin: 0; color: var(--l3-muted); font-size: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.l3-mag__side { display: flex; flex-direction: column; gap: 16px; }
.l3-mag__side article { padding: 18px; background: #fff; border-radius: 14px; border: 1px solid var(--l3-line); }
.l3-mag__side time { font-size: 12px; color: var(--l3-green-dark); }
.l3-mag__side h3 { margin: 4px 0 6px; font-size: 16px; }

.l3-time { position: relative; padding-left: 22px; }
.l3-time::before {
  content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px;
  width: 2px; background: #d1fae5;
}
.l3-time article {
  position: relative; display: grid; grid-template-columns: 110px 1fr; gap: 16px;
  padding: 0 0 24px;
}
.l3-time article::before {
  content: ""; position: absolute; left: -20px; top: 8px;
  width: 10px; height: 10px; border-radius: 50%; background: var(--l3-green);
}
.l3-time time { color: var(--l3-muted); font-size: 13px; }
.l3-time h2, .l3-time h3 { margin: 0 0 6px; font-size: 18px; }
.l3-time h2 a, .l3-time h3 a { color: var(--l3-ink); }
.l3-time h2 a:hover, .l3-time h3 a:hover { color: var(--l3-green-dark); }
.l3-time p {
  margin: 0; color: var(--l3-muted); font-size: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.l3-pills { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.l3-pills article { background: #fff; border: 1px solid var(--l3-line); border-radius: 14px; }
.l3-pills a { display: block; padding: 16px; color: inherit; }
.l3-pills time { font-size: 12px; color: var(--l3-green-dark); }
.l3-pills h3 { margin: 4px 0 0; font-size: 15px; }

.l3-faq details {
  background: #fff; border: 1px solid var(--l3-line); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px;
}
.l3-faq summary { cursor: pointer; font-weight: 700; color: var(--l3-ink); }
.l3-faq p { margin: 10px 0 0; color: var(--l3-muted); font-size: 14px; }

.l3-cta { background: var(--l3-green); color: #fff; padding: 48px 0; }
.l3-cta__inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.l3-cta h2 { margin: 0 0 6px; font-size: 26px; }
.l3-cta p { margin: 0; opacity: .92; }

.l3-links { display: flex; flex-wrap: wrap; gap: 10px 16px; justify-content: center; }
.l3-links a { color: var(--l3-muted); }

.l3-pagehead { padding: 40px 0 8px; background: var(--l3-soft); }
.l3-pagehead h1 { margin: 0; font-size: clamp(24px, 4vw, 34px); color: var(--l3-ink); }
.l3-pagehead p { margin: 8px 0 0; color: var(--l3-muted); }
.l3-crumb { font-size: 13px; color: var(--l3-muted); margin-bottom: 20px; }
.l3-crumb a { color: var(--l3-muted); }
.l3-crumb span { margin: 0 8px; }

.l3-article { padding: 36px 0 24px; }
.l3-article__label {
  display: inline-block; margin: 0 0 10px; padding: 2px 10px;
  background: var(--l3-soft); color: var(--l3-green-dark); border-radius: 999px; font-size: 12px; font-weight: 700;
}
.l3-article__head h1 { margin: 0 0 12px; font-size: clamp(26px, 4vw, 36px); line-height: 1.3; text-align: center; }
.l3-article__meta { display: flex; justify-content: center; gap: 14px; color: var(--l3-muted); font-size: 13px; margin-bottom: 20px; }
.l3-article__lead {
  margin: 0 0 28px; text-align: center; color: var(--l3-muted); font-size: 16px;
  padding-bottom: 20px; border-bottom: 1px dashed var(--l3-line);
}
.l3-article__body { font-size: 16px; line-height: 1.9; }
.l3-article__body h2, .l3-article__body h3 { margin: 1.5em 0 .7em; }
.l3-article__body p { margin: 0 0 1em; }
.l3-article__body img { border-radius: 12px; margin: 14px 0; }
.l3-article__source { margin-top: 24px; padding-top: 14px; border-top: 1px solid var(--l3-line); font-size: 13px; color: var(--l3-muted); word-break: break-all; }

.l3-pn { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
.l3-pn a { display: block; padding: 14px; border: 1px solid var(--l3-line); border-radius: 12px; color: inherit; }
.l3-pn em { display: block; font-style: normal; font-size: 12px; color: var(--l3-muted); }

.l3-dl-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.l3-dl-card { text-align: center; padding: 28px 16px; border: 1px solid var(--l3-line); border-radius: 16px; }
.l3-dl-card h2 { margin: 0 0 8px; }
.l3-dl-card p { margin: 0 0 18px; color: var(--l3-muted); font-size: 14px; }
.l3-tips { margin-top: 32px; padding: 22px; background: var(--l3-soft); border-radius: 12px; }
.l3-tips h2 { margin: 0 0 8px; font-size: 18px; }
.l3-tips ul { margin: 0; padding-left: 18px; color: var(--l3-muted); }

.l3-pages { margin-top: 24px; text-align: center; }
.l3-pages a, .l3-pages span {
  display: inline-block; padding: 6px 12px; margin: 0 3px;
  border: 1px solid var(--l3-line); border-radius: 8px; font-size: 14px; color: var(--l3-text);
}
.l3-empty { text-align: center; padding: 64px 16px; color: var(--l3-muted); }
.l3-empty h1 { margin: 0 0 10px; color: var(--l3-ink); }

.l3-footer { background: #111827; color: #9ca3af; padding: 40px 0 20px; font-size: 13px; }
.l3-footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.l3-footer__brand a { display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 800; margin-bottom: 10px; }
.l3-footer__title { color: #fff; font-weight: 700; margin-bottom: 10px; }
.l3-footer a { display: block; color: #9ca3af; margin-bottom: 8px; }
.l3-footer a:hover { color: #fff; }
.l3-footer__bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 14px; }
.l3-footer__bottom p { margin: 0 0 6px; }
.l3-footer__meta { font-size: 12px; }

@media (max-width: 960px) {
  .l3-hero__grid, .l3-mag { grid-template-columns: 1fr; }
  .l3-feat, .l3-pills, .l3-dl-grid { grid-template-columns: 1fr 1fr; }
  .l3-stats__row, .l3-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .l3-nav-toggle { display: flex; }
  .l3-header .l3-btn--sm { display: none; }
  .l3-nav {
    display: none; position: absolute; left: 0; right: 0; top: 68px;
    flex-direction: column; background: #fff; padding: 8px 16px 16px;
    border-bottom: 1px solid var(--l3-line);
  }
  .l3-nav.is-open { display: flex; }
  .l3-feat, .l3-pills, .l3-dl-grid, .l3-pn, .l3-stats__row, .l3-footer__grid { grid-template-columns: 1fr; }
  .l3-time article { grid-template-columns: 1fr; }
  .l3-chat { display: none; }
}