/**
 * 自适应居中布局与柔和背景：控制内容行宽，让两侧低饱和渐变自然衔接阅读区域。
 * 只组织视觉和信息密度；文章阅读宽度、统计查询及分类吸顶状态保持各自职责。
 */
:root { --qingyu-page-gutter: clamp(20px, 3vw, 32px); --qingyu-shell-width: 1280px; }
/* 背景跨越整张画布，中央保持近白，避免在内容边缘形成盒状色块或硬分界。 */
body.wp-child-theme-qingyu {
  background-color: var(--canvas);
  background-image:
    radial-gradient(ellipse 48vw 65vh at 0% 12%, rgb(107 139 191 / 10%), transparent 76%),
    radial-gradient(ellipse 42vw 72vh at 100% 76%, rgb(179 150 108 / 9%), transparent 78%),
    linear-gradient(90deg, #f0f3f9, #f9fafc 29%, #f9fafc 71%, #f6f3ee);
  background-attachment: fixed;
}
.header-inner, .site-main {
  width: 100%;
  max-width: var(--qingyu-shell-width);
  padding-inline: var(--qingyu-page-gutter);
}
.header-inner { padding-block: 16px; }
.site-footer {
  width: calc(100% - var(--qingyu-page-gutter) * 2);
  max-width: calc(var(--qingyu-shell-width) - var(--qingyu-page-gutter) * 2);
  margin-inline: auto;
}

/* 首屏采用横向品牌卡片，避免正方形图片决定整块内容的高度。 */
.home-layout .home-hero {
  max-width: none;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr);
  gap: clamp(24px, 3vw, 64px);
  padding: 28px 0 20px;
}
.home-layout .hero-copy { min-width: 0; }
.home-layout .hero-copy h1 {
  font-size: clamp(34px, 3.5vw, 58px);
  line-height: 1.2;
  letter-spacing: -1.2px;
  margin: 12px 0 16px;
}
.home-layout .hero-copy h1 br { display: none; }
.home-layout .hero-copy h1 > span { display: inline-block; }
.home-layout .hero-copy > p { font-size: 14px; line-height: 1.85; margin: 0 0 14px; }
.home-layout .hero-copy > .hero-writing-note { font-size: 13px; padding: 10px 13px; }
.home-layout .hero-actions { flex-wrap: wrap; gap: 12px 24px; }
.home-layout .hero-actions .button-primary { min-height: 44px; padding: 11px 18px; }
.home-layout .focus-note.brand-feature {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1fr);
  grid-template-areas: "figure eyebrow" "figure focus";
  gap: 8px 24px;
  align-items: center;
  padding: 24px 28px;
  text-align: left;
}
.home-layout .brand-feature > .eyebrow { grid-area: eyebrow; align-self: end; font-size: 9px; }
.home-layout .brand-feature-figure { grid-area: figure; min-width: 0; }
.home-layout .brand-feature-figure picture { width: min(100%, 210px); }
.home-layout .brand-feature-figure figcaption { text-align: center; }
.home-layout .brand-feature-figure figcaption > p { font-size: 10px; white-space: nowrap; }
.home-layout .brand-feature-focus {
  grid-area: focus;
  align-self: start;
  margin: 0;
  padding-top: 12px;
  text-align: left;
}
.home-layout .brand-feature-focus strong { font-size: clamp(18px, 1.6vw, 26px); line-height: 1.4; }
.home-layout .brand-feature-focus > span { font-size: 12px; }

/* 入口紧邻首屏；标题、说明和箭头自然分栏，保留完整文字与点击区域。 */
.home-layout .sections-directory { gap: 20px; padding-bottom: 0; margin-bottom: 20px; border: 0; }
.home-layout .section-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 18px;
  padding: 16px 20px;
}
.home-layout .section-card-top, .home-layout .section-card h2, .home-layout .section-card p { grid-column: 1; }
.home-layout .section-card h2 { font-size: 20px; margin: 0; }
.home-layout .section-card p { font-size: 12px; max-width: none; margin: 0; }
.home-layout .section-card-bottom { grid-column: 2; grid-row: 1 / 4; border: 0; margin: 0; padding: 0; }
.home-layout .section-card-bottom > span { display: none; }

/* 简介与技术方向同排对齐，作品横跨下一行，避免右侧叠放撑出左下空洞。 */
.home-layout .author-profile {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  grid-template-areas: "bio expertise" "product product";
  align-items: start;
  gap: 24px 30px;
  padding: 26px;
  margin-bottom: 30px;
}
.home-layout .author-profile-copy { grid-area: bio; }
.home-layout .author-profile h2 { font-size: 30px; margin: 8px 0 14px; }
.home-layout .author-profile .author-profile-label { font-size: 9px; line-height: 1.6; font-weight: 600; letter-spacing: 2.5px; margin: 0 0 16px; }
.home-layout .author-profile-copy > p { font-size: 14px; line-height: 1.85; margin-bottom: 13px; }
.home-layout .author-credentials { margin-bottom: 14px; }
.home-layout .author-primary-credentials { margin-bottom: 7px; }
.home-layout .author-expertise { grid-area: expertise; padding-left: 24px; align-self: stretch; display: flex; flex-direction: column; }
.home-layout .author-expertise-heading { display: flex; flex-wrap: wrap; }
.home-layout .author-expertise-heading > span { margin: 0; }
.home-layout .author-expertise-list { display: flex; flex-direction: column; flex: 1; }
.home-layout .author-expertise-list li { display: flex; align-items: center; flex: 1; }
.home-layout .author-expertise-list a { width: 100%; }
.home-layout .author-expertise-list li + li { border-top: 1px solid var(--line); }
.home-layout .author-expertise-list a { padding-block: 11px; }
.home-layout .author-contact { padding: 13px 15px; margin: 16px 0 12px; }
.home-layout .author-contact-email { font-size: 16px; }
.home-layout .author-mini-program {
  grid-area: product;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 1fr);
  column-gap: 36px;
  min-width: 0;
  margin: 0;
  padding: 22px 24px;
}
.home-layout .author-mini-program > :is(.mini-program-heading, h3, p:not(.mini-program-signature), .mini-program-topics) { grid-column: 1; }
.home-layout .author-mini-program h3 { margin-block: 8px; }
.home-layout .author-mini-program .mini-program-search { grid-column: 2; grid-row: 1 / 5; align-self: center; }
.home-layout .author-mini-program > .mini-program-signature { grid-column: 2; grid-row: 5; align-self: center; margin: 0; }
.home-layout .author-mini-program > p { line-height: 1.85; margin-bottom: 12px; }
.home-layout .mini-program-search { padding: 12px 14px; }
.home-layout .mini-program-topics { margin-bottom: 0; }

/* 列表随可用宽度增减列数，卡片保持可读下限；正文不继承门户容器宽度。 */
.archive-layout { grid-template-columns: minmax(0, 1fr) 260px; gap: 32px; }
.archive-layout > div { min-width: 0; }
.post-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.history-category-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
.history-category-card { padding: 23px; }
.history-category-description { font-size: 12px; }
.project-shortcut-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }

@media (max-width: 1100px) {
  .home-layout .home-hero { grid-template-columns: 1fr; gap: 20px; }
  .home-layout .focus-note.brand-feature { grid-template-columns: minmax(140px, .65fr) minmax(0, 1fr); }
  .archive-layout { grid-template-columns: 1fr; }
  .sidebar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; border-top: 1px solid var(--line); padding-top: 26px; }
  .search-panel, .about-note { margin: 0; }
  .history-category-section { grid-column: 1 / -1; margin: 0; }
}

@media (max-width: 900px) {
  .home-layout .author-profile { grid-template-columns: 1fr; grid-template-areas: "bio" "expertise" "product"; }
  .home-layout .author-expertise { border-left: 0; border-top: 1px solid var(--line); padding: 20px 0 0; }
  .home-layout .author-expertise-list { display: grid; flex: none; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 22px; }
  .home-layout .author-expertise-list li:nth-child(2) { border-top: 0; }
}

@media (max-width: 760px) {
  .home-layout .sections-directory { grid-template-columns: 1fr; gap: 12px; }
  .home-layout .author-mini-program { display: block; }
  .home-layout .author-mini-program .mini-program-search { margin-top: 16px; }
  .home-layout .author-mini-program > .mini-program-signature { margin-top: 14px; }
}

@media (max-width: 620px) {
  :root { --qingyu-page-gutter: 20px; }
  body.wp-child-theme-qingyu { background-image: linear-gradient(135deg, #f5f7fb, #f9fafc 45%, #f9f7f3); background-attachment: scroll; }
  .header-inner { padding-block: 12px; }
  .mobile-menu > summary { white-space: nowrap; }
  .home-layout .home-hero { padding-top: 24px; gap: 18px; }
  .home-layout .hero-copy h1 { font-size: clamp(32px, 8.5vw, 42px); letter-spacing: -.8px; }
  .home-layout .hero-copy > p { font-size: 13px; }
  .home-layout .hero-copy > .hero-writing-note { font-size: 12px; }
  .home-layout .hero-actions { gap: 12px 18px; }
  .home-layout .focus-note.brand-feature { grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 8px 14px; padding: 18px; }
  .home-layout .brand-feature-figure picture { width: min(100%, 140px); }
  .home-layout .brand-feature-figure figcaption > p { font-size: 9px; white-space: normal; }
  .home-layout .brand-feature > .eyebrow { font-size: 8px; letter-spacing: 1.3px; }
  .home-layout .brand-feature-focus strong { font-size: 16px; }
  .home-layout .brand-feature-focus > span { font-size: 11px; }
  .home-layout .section-card { padding: 14px 16px; }
  .home-layout .section-card h2 { font-size: 18px; }
  .home-layout .author-profile { padding: 22px 18px; }
  .home-layout .author-profile-copy > p { font-size: 13px; line-height: 1.9; }
  .home-layout .author-expertise-list { grid-template-columns: 1fr; }
  .home-layout .author-expertise-list li:nth-child(2) { border-top: 1px solid var(--line); }
  .home-layout .author-mini-program { padding: 18px; }
  .sidebar { grid-template-columns: 1fr; }
  .history-category-section { grid-column: auto; }
  .site-footer { margin-top: 36px; }
}

/* 极窄手机为页头留出完整菜单宽度，同时给正文多留一点可用空间。 */
@media (max-width: 360px) {
  :root { --qingyu-page-gutter: 16px; }
}

@media print { body.wp-child-theme-qingyu { background: #fff; } }