/* 爬花楼 - 浅色论坛式内容站 */

:root {
  --brand: #2368b3;
  --brand-deep: #1b5596;
  --brand-dark: #123a63;
  --brand-line: #c2d5e3;
  --brand-soft: #eaf3fb;
  --brand-wash: #eef4f9;
  --ink: #2f3338;
  --ink-soft: #565d66;
  --muted: #6b7280;
  --line: #d6dde4;
  --line-soft: #e7edf3;
  --bg: #ffffff;
  --bg-soft: #f5f8fa;
  --bg-top: #f2f2f2;
  --notice: #fefee9;
  --notice-line: #e5dfb0;
  --accent: #2368b3;
  --accent-2: #b5472f;
  --accent-ink: #ffffff;
  --radius-md: 4px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  --cta-fill: #123a63;
  --cta-edge: #0d2c4d;
  --cta-elevation: 0 10px 28px rgba(15, 45, 75, 0.2);
  --cta-rail: rgba(255, 255, 255, 0.16);
  --cta-sheen: rgba(255, 255, 255, 0.08);
  --wrap: 1000px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.75 var(--font-body);
  padding-bottom: 96px;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: #2f6f9f;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--brand-deep);
  outline-offset: 2px;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0;
}

p {
  margin: 0 0 14px;
  overflow-wrap: anywhere;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button,
input {
  font: inherit;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 16px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: normal;
  border: 0;
}

.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--brand-dark);
  color: #fff;
  border-radius: var(--radius-md);
}

.skip:focus {
  top: 12px;
}

/* 顶部工具条 */
.topbar {
  background: var(--bg-top);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  line-height: 30px;
  color: #4a5563;
}

.topbar-in {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.topbar a {
  color: #4a5563;
  padding: 0 2px;
}

.sep {
  color: #b6bec7;
  margin: 0 6px;
}

/* 站头 */
.site-head {
  background: linear-gradient(180deg, #eaf3fb 0%, #f7fbfe 62%, #ffffff 100%);
  border-bottom: 1px solid var(--brand-line);
}

.head-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.logo {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.logo img {
  display: block;
  width: 118px;
  height: 60px;
  object-fit: contain;
}

.head-side {
  text-align: right;
}

.head-line {
  margin: 0 0 2px;
  font-size: 15px;
  color: var(--ink-soft);
}

.head-line strong {
  color: var(--brand-dark);
  font-size: 17px;
}

.head-meta {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

/* 主导航 */
.nav {
  background: var(--brand);
  border-bottom: 1px solid var(--brand-deep);
}

.nav-in {
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  scrollbar-width: thin;
}

.nav a {
  flex: 0 0 auto;
  padding: 10px 17px;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

.nav a:hover {
  background: #1f5fa8;
  text-decoration: none;
}

.nav a.on {
  background: var(--brand-deep);
}

/* 搜索条 */
.searchbar {
  background: #e8eff5;
  border-bottom: 1px solid #e1eaf2;
}

.search-in {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 9px;
  padding-bottom: 9px;
}

.search {
  display: flex;
  flex: 1 1 auto;
  max-width: 470px;
}

.search input {
  flex: 1 1 auto;
  min-width: 0;
  height: 38px;
  padding: 0 12px;
  border: 1px solid #c9d7e4;
  border-right: 0;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  background: #fff;
  color: var(--ink);
  font-size: 15px;
}

.search button {
  flex: 0 0 auto;
  height: 38px;
  padding: 0 20px;
  border: 1px solid var(--brand-deep);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--brand);
  color: #fff;
  font-size: 15px;
  cursor: pointer;
}

.search button:hover {
  background: var(--brand-deep);
}

.hot {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
}

.hot span {
  color: var(--ink-soft);
  font-weight: 600;
}

.hot a {
  color: #2f6f9f;
}

/* 面包屑 */
.crumb {
  padding: 12px 0 10px;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
}

.crumb a {
  color: #4a5563;
}

.crumb .gt {
  color: #aeb6bf;
}

/* 通知 */
.notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  padding: 9px 12px;
  background: var(--notice);
  border: 1px solid var(--notice-line);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: #5a5230;
}

.notice-tag {
  flex: 0 0 auto;
  padding: 1px 7px;
  background: #efe1a6;
  color: #5a4a12;
  border-radius: 2px;
  font-size: 12px;
  font-weight: 700;
}

.notice p {
  margin: 0;
}

/* 两栏骨架 */
.home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 296px;
  gap: 18px;
  align-items: start;
}

.home-main {
  min-width: 0;
}

.side {
  min-width: 0;
}

/* 面板 */
.pane {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.pane-h {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 42px;
  padding: 6px 14px;
  background: var(--brand-wash);
  border-bottom: 1px solid var(--brand-line);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.pane-h h2 {
  font-size: 19px;
  color: #245a8b;
}

.pane-h .more {
  font-size: 13px;
  color: #2f6f9f;
}

.pane-body {
  padding: 15px 16px;
}

/* 首页英雄区 */
.hero {
  padding: 22px 22px 18px;
}

.hero h1 {
  font-size: 29px;
  line-height: 1.35;
  color: #1f3f5c;
  margin-bottom: 10px;
}

.lede {
  font-size: 17px;
  line-height: 1.85;
  color: #4b5563;
  margin-bottom: 12px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  color: var(--muted);
}

.hero-stats strong {
  color: var(--brand-dark);
  font-size: 19px;
}

/* 栏目板 */
.boards {
  padding: 0;
}

.board {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 15px 16px;
  border-bottom: 1px dashed var(--line);
}

.board:last-child {
  border-bottom: 0;
}

.board-icon,
.col-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border: 1px solid var(--brand-line);
  border-radius: 3px;
  background: var(--brand-soft);
  color: #25639f;
  font-size: 20px;
  font-weight: 700;
}

.board-body {
  flex: 1 1 auto;
  min-width: 0;
}

.board h3 {
  font-size: 18px;
  line-height: 1.45;
  margin-bottom: 2px;
}

.board h3 a {
  color: #235a8c;
}

.board-desc {
  margin: 0 0 4px;
  font-size: 14px;
  color: var(--ink-soft);
}

.board-tags {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.board-tags a {
  margin-right: 8px;
  color: #2f6f9f;
}

.board-latest {
  flex: 0 0 196px;
  width: 196px;
  font-size: 13px;
  color: var(--muted);
  text-align: right;
}

.board-latest span {
  display: block;
  margin-bottom: 2px;
}

.board-latest a {
  display: block;
  color: #2f6f9f;
  font-size: 13px;
  line-height: 1.55;
}

/* 文章卡片 */
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 20px;
  padding: 4px 16px 12px;
}

.cards.one {
  grid-template-columns: minmax(0, 1fr);
}

.card {
  padding: 13px 0;
  border-bottom: 1px dashed var(--line);
  min-width: 0;
}

.card-kicker {
  margin: 0 0 3px;
  font-size: 12px;
  color: var(--muted);
}

.card-kicker a {
  color: #2f6f9f;
}

.card h3 {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 4px;
}

.card h3 a {
  color: #235a8c;
}

.card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* 标签云 */
.tagcloud {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 15px 16px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 4px 12px;
  border: 1px solid var(--brand-line);
  border-radius: 3px;
  background: #f8fbfd;
  color: #2b5f8f;
  font-size: 14px;
}

.chip:hover {
  background: var(--brand-soft);
  text-decoration: none;
}

.chip span {
  color: var(--muted);
  font-size: 12px;
}

/* 侧栏 */
.side-pane .pane-body {
  padding: 8px 14px 12px;
}

.side-list li {
  border-bottom: 1px dashed var(--line);
}

.side-list li:last-child {
  border-bottom: 0;
}

.side-list a {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 0;
  font-size: 14px;
  color: #2f5f86;
  line-height: 1.55;
}

.side-list span {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 12px;
}

.side-note {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.side-links {
  margin: 8px 0 0;
  font-size: 13px;
}

/* 栏目头 */
.col-hero {
  padding: 20px 22px;
}

.col-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.col-icon {
  width: 56px;
  height: 56px;
  font-size: 24px;
}

.col-head h1 {
  font-size: 27px;
  line-height: 1.35;
  color: #1f3f5c;
}

.col-sub {
  margin: 2px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.col-meta {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--muted);
}

.tag-row {
  display: grid;
  gap: 10px;
  padding: 14px 16px;
}

.tag-item {
  padding: 10px 12px;
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  background: #fbfdfe;
}

.tag-item h3 {
  font-size: 15px;
  margin-bottom: 3px;
}

.tag-item h3 a {
  color: #235a8c;
}

.tag-item p {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.65;
}

/* 文章列表 */
.list {
  padding: 2px 16px 10px;
}

.row {
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

.row:last-child {
  border-bottom: 0;
}

.row h3 {
  font-size: 17px;
  line-height: 1.55;
  margin-bottom: 4px;
}

.row h3 a {
  color: #235a8c;
}

.row p {
  margin: 0 0 4px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.row-meta {
  font-size: 12px;
  color: var(--muted);
}

.row-meta a {
  color: #2f6f9f;
}

/* 文章页 */
.thread {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  margin-bottom: 16px;
}

.thread-h {
  padding: 15px 20px;
  background: var(--brand-wash);
  border-bottom: 1px solid var(--brand-line);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.thread-h h1 {
  font-size: 25px;
  line-height: 1.45;
  color: #1f3f5c;
  margin-bottom: 5px;
}

.thread-meta {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.thread-meta a {
  color: #2f6f9f;
}

.thread-body {
  display: grid;
  grid-template-columns: 154px minmax(0, 1fr);
  align-items: stretch;
}

.poster {
  padding: 18px 14px;
  border-right: 1px solid var(--line-soft);
  background: #fbfdff;
  text-align: center;
}

.poster img {
  display: block;
  width: 60px;
  height: 60px;
  margin: 0 auto 8px;
  object-fit: contain;
}

.poster-name {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--brand-dark);
}

.poster-role {
  margin: 1px 0 6px;
  font-size: 12px;
  color: var(--muted);
}

.poster-note {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.post {
  padding: 22px 26px 20px;
  min-width: 0;
}

.post p {
  margin: 0 0 17px;
  font-size: 17px;
  line-height: 1.95;
  color: #333940;
}

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

.post-foot {
  margin-top: 20px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  color: var(--muted);
}

.back-col {
  margin: 0 0 20px;
  font-size: 14px;
}

/* 全部文章 */
.all-tools {
  padding: 14px 16px;
  border-bottom: 1px dashed var(--line);
}

.all-tools form {
  display: flex;
  max-width: 520px;
}

.all-tools input {
  flex: 1 1 auto;
  min-width: 0;
  height: 40px;
  padding: 0 12px;
  border: 1px solid #c9d7e4;
  border-right: 0;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  font-size: 15px;
}

.all-tools button {
  flex: 0 0 auto;
  height: 40px;
  padding: 0 20px;
  border: 1px solid var(--brand-deep);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--brand);
  color: #fff;
  cursor: pointer;
}

.all-list {
  padding: 4px 16px 12px;
}

.all-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.6;
}

.all-list li:last-child {
  border-bottom: 0;
}

.all-list a {
  color: #235a8c;
}

.all-list .meta {
  margin-left: 8px;
  font-size: 12px;
  color: var(--muted);
}

.all-hint {
  margin: 0;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--muted);
}

/* 静态页 */
.doc {
  padding: 22px;
}

.doc h1 {
  font-size: 26px;
  color: #1f3f5c;
  margin-bottom: 14px;
}

.doc p {
  font-size: 16px;
  line-height: 1.9;
  color: #3f4650;
}

/* 页脚 */
.site-foot {
  margin-top: 8px;
  background: var(--bg-soft);
  border-top: 1px solid var(--brand-line);
}

.foot-in {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2fr;
  gap: 24px;
  padding-top: 24px;
  padding-bottom: 20px;
}

.foot-brand a {
  font-size: 20px;
  font-weight: 700;
  color: var(--brand-dark);
}

.foot-brand p {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.foot-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.foot-nav h2 {
  font-size: 14px;
  color: #3c4651;
  margin-bottom: 6px;
}

.foot-nav li {
  margin-bottom: 3px;
}

.foot-nav a {
  font-size: 13px;
  color: #5a6572;
}

.foot-bottom {
  padding-top: 12px;
  padding-bottom: 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}

.foot-bottom p {
  margin: 0;
}

/* 404 */
.nf {
  padding: 40px 22px;
  text-align: left;
}

.nf h1 {
  font-size: 30px;
  color: #1f3f5c;
  margin-bottom: 10px;
}

.nf p {
  font-size: 16px;
  color: var(--ink-soft);
}

/* 响应式 */
@media (max-width: 900px) {
  .home-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .side {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 16px;
  }

  .board-latest {
    flex-basis: 170px;
    width: 170px;
  }

  .foot-in {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 680px) {
  body {
    padding-bottom: 84px;
  }

  .head-in {
    align-items: flex-start;
  }

  .head-side {
    text-align: left;
  }

  .head-line {
    font-size: 14px;
  }

  .head-line strong {
    font-size: 15px;
  }

  .search-in {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .search {
    max-width: none;
  }

  .hero {
    padding: 18px 16px;
  }

  .hero h1 {
    font-size: 24px;
  }

  .lede {
    font-size: 16px;
  }

  .board {
    flex-wrap: wrap;
  }

  .board-latest {
    flex-basis: 100%;
    width: 100%;
    text-align: left;
    padding-top: 4px;
  }

  .cards {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .side {
    grid-template-columns: minmax(0, 1fr);
  }

  .thread-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .poster {
    display: flex;
    align-items: center;
    gap: 10px;
    text-align: left;
    border-right: 0;
    border-bottom: 1px solid var(--line-soft);
    padding: 12px 16px;
  }

  .poster img {
    margin: 0;
    width: 44px;
    height: 44px;
  }

  .poster-name {
    font-size: 14px;
  }

  .poster-role,
  .poster-note {
    margin: 0;
    font-size: 12px;
  }

  .poster-note {
    display: none;
  }

  .post {
    padding: 18px 16px;
  }

  .post p {
    font-size: 16px;
    line-height: 1.9;
  }

  .foot-nav {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .col-head h1 {
    font-size: 23px;
  }

  .thread-h {
    padding: 13px 15px;
  }

  .thread-h h1 {
    font-size: 22px;
  }
}

.use-list {
  padding: 4px 16px 12px;
}

.use-item {
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.use-item:last-child {
  border-bottom: 0;
}

.use-item h3 {
  font-size: 16px;
  color: #235a8c;
  margin-bottom: 2px;
}

.use-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.all-list.compact li {
  font-size: 14px;
}

/* 底部固定条留白：覆盖 CTA 的 bottom 偏移与条高 */
body {
  padding-bottom: 144px !important;
}

@media (max-width: 680px) {
  body {
    padding-bottom: 128px !important;
  }
}