/* ==========================================================================
   白皮书栏目样式（whitepaper）
   依赖 src/style.css 的设计令牌；本文件在其后加载，仅新增 .wp-* 命名空间，
   不覆盖既有类，避免影响其他页面。
   ========================================================================== */

.wp-shell {
  max-width: 1100px;
  margin: 0 auto;
}

.wp-reading {
  max-width: 46rem;
  margin: 0 auto;
}

/* ---------- 列表页 ---------- */

.wp-hero {
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(1.5rem, 3vw, 2.5rem);
}

.wp-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.25;
  margin: 0.75rem 0 0.9rem;
}

.wp-hero .wp-lead {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--ink-soft);
  max-width: 62ch;
}

.wp-note {
  margin-top: 1.1rem;
  padding: 0.85rem 1.1rem;
  border-left: 3px solid var(--accent);
  background: rgba(201, 120, 60, 0.07);
  color: var(--ink-soft);
  font-size: 0.92rem;
  border-radius: 0 6px 6px 0;
}

.wp-list {
  display: grid;
  gap: 1.25rem;
  margin: 0.5rem 0 clamp(2rem, 4vw, 3rem);
}

.wp-card {
  position: relative;          /* 供 .wp-card__link 的拉伸覆盖层定位 */
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1.4rem;
  align-items: start;
  padding: 1.5rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  color: inherit;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

/* 标题链接铺满整张卡片，保持「整卡可点」*/
.wp-card__link {
  color: inherit;
  text-decoration: none;
}

.wp-card__link::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 14px;
}

/* 下载按钮需浮在覆盖层之上，否则点不到 */
.wp-card__dl {
  position: relative;
  z-index: 1;
  margin-top: 0.9rem;
}

.wp-dl {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.34rem 0.85rem;
  border: 1px solid var(--moss);
  border-radius: 999px;
  color: var(--moss);
  font-size: 0.82rem;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease;
}

.wp-dl:hover {
  background: var(--moss);
  color: var(--white);
}

.wp-card:hover {
  transform: translateY(-3px);
  border-color: var(--moss);
  box-shadow: var(--shadow);
}

.wp-card__no {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--moss);
  letter-spacing: 0.06em;
}

.wp-card__sector {
  display: inline-block;
  margin-top: 0.35rem;
  padding: 0.15rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
}

.wp-card h2 {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  margin: 0 0 0.5rem;
  line-height: 1.35;
}

.wp-card p {
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.wp-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.wp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.7rem;
}

.wp-tag {
  padding: 0.12rem 0.6rem;
  border-radius: 999px;
  background: rgba(31, 107, 92, 0.09);
  color: var(--moss);
  font-size: 0.76rem;
}

/* ---------- 文章页 ---------- */

.wp-cover {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(1.5rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
}

.wp-cover h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.6vw, 2.7rem);
  line-height: 1.28;
  margin: 0.75rem 0 1rem;
}

.wp-cover__sub {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--ink-soft);
  max-width: 66ch;
  margin: 0 0 1.4rem;
}

.wp-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--line);
  font-size: 0.84rem;
  color: var(--muted);
}

.wp-meta b {
  color: var(--ink);
  font-weight: 600;
}

.wp-abstract {
  margin: 2rem 0;
  padding: 1.4rem 1.6rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--moss);
  border-radius: 0 12px 12px 0;
  background: rgba(255, 255, 255, 0.66);
}

.wp-abstract h2 {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
  margin: 0 0 0.7rem;
}

.wp-abstract p {
  margin: 0 0 0.6rem;
  color: var(--ink-soft);
}

.wp-abstract p:last-child {
  margin-bottom: 0;
}

.wp-toc {
  margin: 2rem 0 2.5rem;
  padding: 1.2rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(231, 238, 240, 0.5);
}

.wp-toc h2 {
  font-size: 0.95rem;
  margin: 0 0 0.7rem;
  font-family: var(--font-en);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.wp-toc ol {
  margin: 0;
  padding-left: 1.2rem;
  columns: 2;
  column-gap: 2rem;
}

.wp-toc li {
  margin: 0.22rem 0;
  font-size: 0.92rem;
  break-inside: avoid;
}

.wp-toc a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.wp-toc a:hover {
  border-bottom-color: var(--moss);
  color: var(--moss);
}

.wp-body {
  font-size: 1.02rem;
}

.wp-body > section {
  margin: 0 0 2.8rem;
}

.wp-body h2 {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  line-height: 1.35;
  margin: 0 0 0.9rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--mist);
}

.wp-body h2 .wp-h2-no {
  color: var(--accent);
  font-family: var(--font-en);
  font-size: 0.85em;
  margin-right: 0.5rem;
}

.wp-body h3 {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  margin: 1.8rem 0 0.6rem;
}

.wp-body h4 {
  font-size: 1rem;
  margin: 1.3rem 0 0.45rem;
  color: var(--ink-soft);
}

.wp-body p {
  margin: 0 0 1rem;
}

.wp-body ul,
.wp-body ol {
  margin: 0 0 1.1rem;
  padding-left: 1.35rem;
}

.wp-body li {
  margin: 0.35rem 0;
}

.wp-body strong {
  color: var(--ink);
}

.wp-body code {
  padding: 0.1em 0.38em;
  border-radius: 4px;
  background: rgba(31, 107, 92, 0.1);
  font-size: 0.9em;
}

.wp-figure {
  margin: 1.6rem 0;
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.6);
}

.wp-figure figcaption {
  margin-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.wp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.wp-table caption {
  caption-side: top;
  text-align: left;
  font-size: 0.82rem;
  color: var(--muted);
  padding-bottom: 0.5rem;
}

.wp-table th,
.wp-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.wp-table thead th {
  background: rgba(231, 238, 240, 0.75);
  font-weight: 600;
  white-space: nowrap;
}

.wp-table tbody tr:hover {
  background: rgba(31, 107, 92, 0.05);
}

.wp-keypoints {
  margin: 1.8rem 0;
  padding: 1.3rem 1.6rem;
  border-radius: 12px;
  background: rgba(31, 107, 92, 0.07);
  border: 1px solid rgba(31, 107, 92, 0.18);
}

.wp-keypoints h3 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--moss);
}

.wp-keypoints ul {
  margin: 0;
  padding-left: 1.2rem;
}

.wp-quote {
  margin: 2rem 0;
  padding-left: 1.2rem;
  border-left: 3px solid var(--accent);
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.9vw, 1.3rem);
  line-height: 1.6;
  color: var(--ink-soft);
}

.wp-steps {
  counter-reset: wpstep;
  list-style: none;
  padding: 0;
  margin: 1.2rem 0;
}

.wp-steps li {
  counter-increment: wpstep;
  position: relative;
  padding-left: 2.6rem;
  margin: 0.9rem 0;
}

.wp-steps li::before {
  content: counter(wpstep);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--moss);
  color: var(--white);
  font-family: var(--font-en);
  font-size: 0.82rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.wp-notice {
  margin: 2.5rem 0 1rem;
  padding: 1.3rem 1.5rem;
  border: 1px dashed var(--line);
  border-radius: 12px;
  font-size: 0.86rem;
  color: var(--ink-soft);
  background: rgba(244, 248, 249, 0.7);
}

.wp-notice h2 {
  font-family: var(--font-body);
  font-size: 0.95rem;
  margin: 0 0 0.6rem;
  border: 0;
  padding: 0;
}

.wp-notice ul {
  margin: 0.4rem 0 0;
  padding-left: 1.15rem;
}

.wp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.6rem 0 2.6rem;
}

.wp-related {
  margin: 2rem 0 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.wp-related h2 {
  font-size: 0.95rem;
  font-family: var(--font-en);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.8rem;
}

.wp-related ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.wp-related a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.15rem;
}

.wp-related a:hover {
  color: var(--moss);
  border-bottom-color: var(--moss);
}

.wp-backlink {
  display: inline-block;
  margin-bottom: 1.2rem;
  font-size: 0.86rem;
  color: var(--muted);
  text-decoration: none;
}

.wp-backlink:hover {
  color: var(--moss);
}

/* 仅在打印时出现的页眉信息条 */
.wp-print-head {
  display: none;
}

/* ---------- 封面图与正文插图 ---------- */

.wp-cover__media {
  margin: 1.4rem 0 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--mist);
  aspect-ratio: 16 / 9;
}

.wp-cover__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.wp-photo {
  margin: 1.9rem 0;
}

.wp-photo img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--mist);
}

.wp-photo figcaption {
  margin-top: 0.65rem;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--muted);
}

.wp-photo figcaption b {
  color: var(--ink-soft);
  font-weight: 600;
}

/* 列表页的段落块间距 */
.wp-block {
  margin: clamp(2rem, 5vh, 3rem) 0;
}

.wp-block:last-of-type {
  margin-bottom: clamp(1rem, 3vh, 1.5rem);
}

/* ---------- 响应式 ---------- */

@media (max-width: 720px) {
  .wp-card {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .wp-toc ol {
    columns: 1;
  }
}

/* ---------- 打印 / 另存 PDF ---------- */

@page {
  size: A4;
  margin: 18mm 16mm;
}

@media print {
  html,
  body {
    background: #fff !important;
    color: #000;
    font-size: 10.5pt;
    line-height: 1.62;
  }

  .noise,
  .site-header,
  .site-footer,
  .mobile-nav,
  .notice-bar,
  .rail-nav,
  .wp-actions,
  .wp-related,
  .wp-backlink,
  .wp-toc,
  .header-cta,
  .cta-band {
    display: none !important;
  }

  .wp-shell,
  .wp-reading {
    width: auto;
    max-width: none;
    margin: 0;
  }

  .wp-cover {
    padding: 0 0 8mm;
    border-bottom: 1.5pt solid #000;
  }

  .wp-cover h1 {
    font-size: 20pt;
  }

  .wp-cover__sub {
    font-size: 11pt;
  }

  .wp-meta {
    border-top: 0;
    padding-top: 2mm;
    font-size: 8.5pt;
  }

  .wp-abstract {
    background: none;
    border: 0.75pt solid #999;
    border-left: 3pt solid #000;
    padding: 4mm 5mm;
    margin: 6mm 0;
    break-inside: avoid;
  }

  .wp-print-head {
    display: block;
    font-size: 8.5pt;
    color: #444;
    border-bottom: 0.5pt solid #999;
    padding-bottom: 2mm;
    margin-bottom: 4mm;
  }

  .wp-body {
    font-size: 10.5pt;
  }

  .wp-body h2 {
    font-size: 14pt;
    border-bottom: 0.75pt solid #999;
    break-after: avoid;
    page-break-after: avoid;
  }

  .wp-body h3 {
    font-size: 11.5pt;
    break-after: avoid;
    page-break-after: avoid;
  }

  .wp-body > section {
    margin-bottom: 8mm;
  }

  .wp-figure,
  .wp-keypoints,
  .wp-table,
  .wp-quote,
  .wp-steps li,
  .wp-notice {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .wp-figure,
  .wp-keypoints,
  .wp-notice {
    background: none !important;
    border: 0.75pt solid #999;
  }

  /* 图片：打印时完整显示，不裁切、不跨页断开 */
  .wp-cover__media {
    aspect-ratio: auto;
    margin: 5mm 0 0;
    border: 0.5pt solid #bbb;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .wp-cover__media img {
    height: auto;
    object-fit: contain;
  }

  .wp-photo {
    margin: 6mm 0;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .wp-photo img {
    border: 0.5pt solid #bbb;
  }

  .wp-photo figcaption {
    font-size: 8.5pt;
    color: #444;
  }

  .wp-table thead th {
    background: #eee !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .wp-table th,
  .wp-table td {
    border-bottom: 0.5pt solid #bbb;
  }

  .wp-quote {
    border-left: 3pt solid #000;
  }

  .wp-steps li::before {
    background: #000 !important;
    color: #fff !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  a {
    color: #000;
    text-decoration: none;
  }

  main {
    padding: 0;
  }
}