/* 首页介绍（index.html #landing，features/welcome/welcomeView.js 复用） */
.landing { display: grid; gap: 34px; max-width: 1120px; }
.view .landing .hero-copy h1 { display: block; margin: 13px 0 12px; font-size: clamp(27px, 2.6vw, 40px); line-height: 1.45; font-weight: 800; letter-spacing: -1px; color: #244b3e; }
.landing .hero-copy > p { max-width: 32em; }
.landing .hero-cta { gap: 10px; }
.landing-sec h2 { margin: 0 0 14px; font-size: 22px; color: var(--ink); }
.landing-grid { display: grid; gap: 14px; }
.landing-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.landing-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.landing-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.landing-card, .landing-stat { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 18px 20px; }
.landing-card h3 { display: flex; align-items: center; gap: 8px; margin: 0 0 6px; font-size: 16px; color: var(--primary-ink); }
.landing-card p, .landing-stat span, .landing-note, .landing-faq p, .landing-steps li { font-size: 14px; line-height: 1.8; color: var(--ink-soft); margin: 0; }
.landing-note { margin-top: 14px; max-width: 52em; }
.landing-stat { display: flex; flex-direction: column; gap: 4px; }
.landing-stat strong { font-size: 26px; font-weight: 800; color: var(--primary); letter-spacing: -.5px; }
.landing-steps { margin: 0; padding: 0; list-style: none; counter-reset: step; display: grid; gap: 10px; }
.landing-steps li { counter-increment: step; position: relative; padding: 14px 18px 14px 58px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; }
.landing-steps li::before { content: counter(step); position: absolute; left: 18px; top: 13px; width: 28px; height: 28px; border-radius: 50%; background: var(--primary-soft); color: var(--primary-ink); font-weight: 800; display: flex; align-items: center; justify-content: center; }
.landing-steps strong { color: var(--ink); }
.landing-faq { display: grid; gap: 6px; max-width: 56em; }
.landing-faq h3 { margin: 14px 0 2px; font-size: 16px; color: var(--ink); }
.landing-faq h3:first-child { margin-top: 0; }
.landing-end { text-align: center; padding: 28px 20px; background: var(--primary-soft); border-radius: 20px; }
.landing-end p { margin: 0 0 16px; color: var(--ink-soft); }
.landing-end .hero-cta { display: inline-flex; }
.landing-foot { border-top: 1px solid var(--border); padding-top: 16px; }
.landing-foot p { font-size: 12px; color: var(--muted); line-height: 1.8; margin: 0; }
.landing-foot a { color: var(--primary-dark); }
.sidebar-about { font-size: 12px !important; color: var(--muted) !important; min-height: 0 !important; padding: 6px 14px !important; }
@media (max-width: 960px) {
  .landing-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .landing-grid.three { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .landing { gap: 26px; }
  .landing-grid.two { grid-template-columns: 1fr; }
  .view .landing .hero-copy h1 { font-size: 29px; position: relative; z-index: 1; }
  /* 首页介绍文字长，插画会压住正文：手机上不放插画 */
  .landing .hero-art { display: none; }
  .landing .hero-copy > p { max-width: none; padding-right: 0; }
}
@media (max-width: 480px) {
  .landing-grid.four { grid-template-columns: 1fr; }
  .landing-steps li { padding-left: 52px; }
}
.landing-end h2 { justify-content: center; text-align: center; }