/* Yabao Brand — 首页组件样式（WWW-DESIGN-001）。
 * 编译自设计包 design/www-yabaocloud-v1/homepage.css：
 *  - Hero 背景路径改为子主题 assets/img/（WebP 优先，PNG 源保留）；
 *  - 追加 .yb-fallback 回退样式与 .yrc-*（插件推荐频道卡）在 .yb-home 上下文的布局适配；
 *  - 其余规则与设计包一致。仅在 front page 加载（见 functions.php）。 */

.yb-home { color: var(--yb-ink); background: var(--yb-cream); font-family: var(--yb-font); line-height: 1.55; }
.yb-home *, .yb-home *::before, .yb-home *::after { box-sizing: border-box; }
.yb-home .yb-wrap { width: min(calc(100% - 40px), var(--yb-max)); margin-inline: auto; }
.yb-home section { padding-block: var(--yb-s6); }
.yb-home h1, .yb-home h2, .yb-home h3, .yb-home p { margin-top: 0; }
.yb-home h1 { max-width: 760px; margin-bottom: 20px; color: #fff; font-size: clamp(40px, 5vw, 68px); line-height: 1.04; letter-spacing: -.045em; }
.yb-home h2 { margin-bottom: 16px; font-size: clamp(30px, 3.4vw, 46px); line-height: 1.1; letter-spacing: -.035em; }
.yb-home h3 { margin-bottom: 8px; font-size: 19px; line-height: 1.25; }
.yb-home .yb-eyebrow { display: inline-flex; gap: 8px; align-items: center; margin-bottom: 18px; color: var(--yb-gold); font-size: 13px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.yb-home .yb-eyebrow::before { width: 22px; height: 2px; background: currentColor; content: ""; }
.yb-home .yb-lead { max-width: 640px; color: #eff7f2; font-size: clamp(17px, 1.6vw, 21px); }
.yb-home .yb-btn { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 9px; padding: 13px 21px; border: 1px solid transparent; border-radius: 999px; font-weight: 800; text-decoration: none; transition: transform .18s ease, background-color .18s ease, box-shadow .18s ease; }
.yb-home .yb-btn:hover { transform: translateY(-2px); }
.yb-home .yb-btn:focus-visible { outline: 3px solid var(--yb-gold); outline-offset: 3px; }
.yb-home .yb-btn--primary { background: var(--yb-gold); color: var(--yb-ink); box-shadow: 0 8px 25px rgba(215,165,71,.26); }
.yb-home .yb-btn--primary:hover { background: #e9bc61; }
.yb-home .yb-btn--light { border-color: rgba(255,255,255,.65); color: #fff; background: rgba(255,255,255,.08); backdrop-filter: blur(8px); }
.yb-home .yb-btn--dark { background: var(--yb-forest); color: #fff; }
.yb-home .yb-hero { position: relative; min-height: min(750px, calc(100vh - 82px)); display: grid; align-items: center; overflow: hidden; isolation: isolate; background: var(--yb-ink); }
.yb-home .yb-hero::before { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(7,30,25,.96) 0%, rgba(7,30,25,.76) 36%, rgba(7,30,25,.14) 74%, rgba(7,30,25,.12) 100%), url("../img/yabaocloud-hero-logistics-v1.webp") center / cover no-repeat; content: ""; }
.yb-home .yb-hero__content { padding-block: 116px 80px; }
.yb-home .yb-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.yb-home .yb-proof { display: flex; flex-wrap: wrap; gap: 24px 38px; margin-top: 60px; color: #eff7f2; }
.yb-home .yb-proof strong { display: block; color: var(--yb-gold); font-size: 21px; line-height: 1.1; }
.yb-home .yb-proof span { display: block; margin-top: 4px; font-size: 13px; }
.yb-home .yb-intro { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: var(--yb-s5); align-items: end; }
.yb-home .yb-muted { color: var(--yb-slate); font-size: 18px; }
.yb-home .yb-steps, .yb-home .yb-services, .yb-home .yb-channels { display: grid; gap: 16px; }
.yb-home .yb-steps { grid-template-columns: repeat(4, 1fr); margin-top: var(--yb-s4); }
.yb-home .yb-step, .yb-home .yb-service, .yb-home .yb-channel { border: 1px solid var(--yb-line); border-radius: var(--yb-r-lg); background: var(--yb-paper); box-shadow: var(--yb-shadow-sm); }
.yb-home .yb-step { padding: 26px 22px; }
.yb-home .yb-step__no { display: block; margin-bottom: 26px; color: var(--yb-gold); font-weight: 900; font-size: 13px; letter-spacing: .1em; }
.yb-home .yb-spotlight { background: var(--yb-mint); }
.yb-home .yb-channels { grid-template-columns: repeat(5, 1fr); margin-top: var(--yb-s4); }
.yb-home .yb-channel { min-height: 190px; padding: 22px; color: var(--yb-ink); text-decoration: none; transition: transform .18s ease, box-shadow .18s ease; }
.yb-home .yb-channel:hover { transform: translateY(-5px); box-shadow: var(--yb-shadow-lg); }
.yb-home .yb-channel__icon { display: grid; width: 46px; height: 46px; place-items: center; margin-bottom: 34px; border-radius: 50%; background: var(--yb-mint); color: var(--yb-forest); font-size: 22px; }
.yb-home .yb-services { grid-template-columns: repeat(2, 1fr); }
.yb-home .yb-service { min-height: 190px; padding: 30px; }
.yb-home .yb-service__icon { margin-bottom: 20px; color: var(--yb-forest); font-size: 26px; }
.yb-home .yb-cta { background: var(--yb-forest); color: #fff; }
.yb-home .yb-cta .yb-wrap { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.yb-home .yb-cta h2 { max-width: 680px; margin-bottom: 0; }
.yb-home .yb-cta .yb-btn--primary { flex: 0 0 auto; }
.yb-home .yb-disclaimer { color: #7b8d84; font-size: 13px; }

/* 布局适配：[yabao_reco_channels] 输出的 .yrc-* 组件嵌入 .yb-channels 五列网格。
 * 业务卡样式归插件（内联），此处仅做首页上下文的呈现适配（归子主题）。 */
.yb-home .yb-channels .yrc-grid { max-width: none; margin: 0; gap: 16px; grid-template-columns: repeat(5, 1fr); display: grid; }
.yb-home .yb-channels .yrc-card { border-radius: var(--yb-r-lg); border-color: var(--yb-line); box-shadow: var(--yb-shadow-sm); }
.yb-home .yb-channels .yrc-name { color: var(--yb-ink); }
.yb-home .yb-channels .yrc-name-zh, .yb-home .yb-channels .yrc-desc { color: var(--yb-slate); }
.yb-home .yb-channels .yrc-count { color: var(--yb-forest); }
.yb-home .yb-channels .yrc-cta { color: var(--yb-forest-strong); }
.yb-home .yb-channels .yrc-icon { background: var(--yb-mint); }
.yb-home .yb-channels .yrc-card:hover { box-shadow: var(--yb-shadow-lg); }

/* 回退正文样式（插件不可用时 front-page.php 的呈现，保持品牌一致且不白屏） */
.yb-fallback { padding-block: var(--yb-s5); background: var(--yb-cream); }
.yb-fallback__wrap { width: min(calc(100% - 40px), var(--yb-max)); margin-inline: auto; color: var(--yb-ink); }
.yb-fallback__wrap a { color: var(--yb-forest); }
.yb-fallback__wrap a:focus-visible { outline: 3px solid var(--yb-gold); outline-offset: 3px; }

@media (max-width: 900px) {
  .yb-home section { padding-block: var(--yb-s5); }
  .yb-home .yb-steps { grid-template-columns: repeat(2, 1fr); }
  .yb-home .yb-channels { grid-template-columns: repeat(3, 1fr); }
  .yb-home .yb-channels .yrc-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 680px) {
  .yb-home .yb-wrap { width: min(calc(100% - 28px), var(--yb-max)); }
  .yb-home .yb-hero { min-height: 690px; }
  .yb-home .yb-hero::before { background-position: 61% center; }
  .yb-home .yb-hero__content { padding-block: 92px 48px; }
  .yb-home .yb-actions .yb-btn { width: 100%; }
  .yb-home .yb-proof { gap: 16px 22px; margin-top: 42px; }
  .yb-home .yb-intro, .yb-home .yb-services { grid-template-columns: 1fr; gap: 16px; }
  .yb-home .yb-steps { grid-template-columns: 1fr; }
  .yb-home .yb-channels { grid-template-columns: repeat(2, 1fr); }
  .yb-home .yb-channels .yrc-grid { grid-template-columns: repeat(2, 1fr); }
  .yb-home .yb-channel { min-height: 160px; }
  .yb-home .yb-cta .yb-wrap { align-items: flex-start; flex-direction: column; }
  .yb-fallback__wrap { width: min(calc(100% - 28px), var(--yb-max)); }
}