/* ============================================================
   中州古城 · 站点样式
   配色规范（定稿）：
   主蓝   #1B6DC1   深蓝 #0D3B66   浅蓝底 #EAF4FC
   点缀绿 #3F9D63   云白 #FFFFFF   文字 #24384D
   ============================================================ */

:root {
  --blue: #1B6DC1;
  --blue-deep: #0D3B66;
  --blue-soft: #EAF4FC;
  --green: #3F9D63;
  --green-soft: #E7F4EC;
  --white: #FFFFFF;
  --ink: #24384D;
  --ink-light: #5B7186;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(13, 59, 102, .10);
  --serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.75;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(13, 59, 102, .08);
}

.nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--blue-deep);
  letter-spacing: 2px;
}

.brand-tower { width: 30px; height: 30px; }

.nav-links { display: flex; gap: 6px; }

.nav-links a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 15px;
  color: var(--ink-light);
  transition: all .2s;
}

.nav-links a:hover { color: var(--blue); background: var(--blue-soft); }

.nav-links a.active {
  color: var(--white);
  background: var(--blue);
}

/* ---------- 首页主视觉 ---------- */
.hero {
  position: relative;
  overflow: hidden;
}

.hero svg.scene {
  width: 100%;
  height: auto;
}

.hero-caption {
  position: absolute;
  left: 50%;
  bottom: 9%;
  transform: translateX(-50%);
  text-align: center;
  color: var(--white);
  text-shadow: 0 2px 12px rgba(13, 59, 102, .55);
  pointer-events: none;
  width: 90%;
}

.hero-caption h1 {
  font-family: var(--serif);
  font-size: clamp(34px, 5.4vw, 60px);
  letter-spacing: 10px;
  font-weight: 700;
}

.hero-caption p {
  margin-top: 10px;
  font-size: clamp(14px, 1.6vw, 18px);
  letter-spacing: 4px;
  opacity: .95;
}

/* 云朵飘动 */
@keyframes drift {
  from { transform: translateX(0); }
  to   { transform: translateX(70px); }
}
.cloud-a { animation: drift 16s ease-in-out infinite alternate; }
.cloud-b { animation: drift 22s ease-in-out infinite alternate-reverse; }
.cloud-c { animation: drift 28s ease-in-out infinite alternate; }

/* 水面微光 */
@keyframes shimmer {
  from { opacity: .35; }
  to   { opacity: .8; }
}
.shimmer { animation: shimmer 4s ease-in-out infinite alternate; }

/* ---------- 通用区块 ---------- */
.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 24px;
}

.section-head { text-align: center; margin-bottom: 44px; }

.section-head .kicker {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--green);
  background: var(--green-soft);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.section-head h2 {
  font-family: var(--serif);
  font-size: 32px;
  color: var(--blue-deep);
  letter-spacing: 4px;
}

.section-head .sub {
  margin-top: 8px;
  color: var(--ink-light);
  font-size: 15px;
}

/* ---------- 卡片 ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid rgba(13, 59, 102, .08);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(13, 59, 102, .16);
}

.card-thumb {
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
}

.thumb-blue { background: linear-gradient(135deg, #DCEBFA, #B9D9F5); }
.thumb-green { background: linear-gradient(135deg, #E2F2E8, #BCE3CC); }
.thumb-mix { background: linear-gradient(135deg, #DCEBFA, #CBE8D6); }

.card-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }

.card-tag {
  font-size: 12px;
  color: var(--blue);
  background: var(--blue-soft);
  align-self: flex-start;
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.card-body h3 {
  font-size: 18px;
  color: var(--blue-deep);
  margin-bottom: 8px;
}

.card-body p {
  font-size: 14px;
  color: var(--ink-light);
  flex: 1;
}

.card-meta {
  margin-top: 14px;
  font-size: 13px;
  color: #8CA2B5;
  display: flex;
  justify-content: space-between;
}

/* 诗歌引文卡 */
.quote-card {
  background: linear-gradient(160deg, var(--blue-soft), var(--white) 65%);
  border-left: 4px solid var(--blue);
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: var(--shadow);
}

.quote-card .verse {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--blue-deep);
  line-height: 2;
}

.quote-card .author {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-light);
  text-align: right;
}

/* ---------- 下载专区 ---------- */
.dl-row {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--white);
  border: 1px solid rgba(13, 59, 102, .08);
  border-radius: var(--radius);
  padding: 18px 22px;
  box-shadow: var(--shadow);
}

.dl-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--blue-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  flex-shrink: 0;
}

.dl-info { flex: 1; }
.dl-info h3 { font-size: 16px; color: var(--blue-deep); }
.dl-info p { font-size: 13px; color: var(--ink-light); margin-top: 2px; }

.btn-dl {
  background: var(--blue);
  color: var(--white);
  font-size: 14px;
  padding: 9px 22px;
  border-radius: 999px;
  transition: background .2s;
  white-space: nowrap;
}

.btn-dl:hover { background: var(--blue-deep); }

.btn-dl.green { background: var(--green); }
.btn-dl.green:hover { background: #2F7F4F; }

/* ---------- 内页页头 ---------- */
.page-hero {
  background: linear-gradient(160deg, var(--blue-deep), var(--blue) 60%, #4C97DC);
  color: var(--white);
  text-align: center;
  padding: 84px 24px 72px;
  position: relative;
  overflow: hidden;
}

.page-hero h1 {
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: 8px;
}

.page-hero p {
  margin-top: 12px;
  font-size: 15px;
  letter-spacing: 3px;
  opacity: .9;
}

.page-hero .deco {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
}

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: 40px;
  background: var(--blue-deep);
  color: rgba(255, 255, 255, .82);
  padding: 48px 24px 28px;
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
}

.footer-inner h4 {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.footer-inner a { display: block; font-size: 14px; padding: 4px 0; opacity: .85; }
.footer-inner a:hover { opacity: 1; color: #9CC9EE; }

.footer-brand {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 4px;
  color: var(--white);
  margin-bottom: 10px;
}

.copyright {
  max-width: 1120px;
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  text-align: center;
  font-size: 13px;
  opacity: .6;
}

/* ---------- 社区：导航右侧动作区 ---------- */
.nav-actions { display: flex; align-items: center; gap: 12px; }

.link-login {
  font-size: 14px;
  color: var(--ink-light);
  padding: 7px 10px;
  border-radius: 8px;
}
.link-login:hover { color: var(--blue); background: var(--blue-soft); }

.btn-post {
  background: var(--green);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  transition: background .2s;
}
.btn-post:hover { background: #2F7F4F; }

/* ---------- 社区：帖子列表 ---------- */
.post-list { display: flex; flex-direction: column; gap: 14px; }

.post-row {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--white);
  border: 1px solid rgba(13, 59, 102, .08);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
  transition: transform .2s, box-shadow .2s;
}
.post-row:hover {
  transform: translateX(4px);
  box-shadow: 0 10px 26px rgba(13, 59, 102, .14);
}

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--green));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.avatar.g2 { background: linear-gradient(135deg, #4C97DC, #6FBF7E); }
.avatar.g3 { background: linear-gradient(135deg, #0D3B66, #1B6DC1); }

.post-main { flex: 1; min-width: 0; }
.post-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--blue-deep);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.post-title:hover { color: var(--blue); }
.post-excerpt {
  font-size: 13px;
  color: var(--ink-light);
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.post-tags { display: flex; gap: 8px; margin-top: 6px; }
.mini-tag {
  font-size: 12px;
  padding: 1px 9px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
}
.mini-tag.hot { background: #FDEEE3; color: #D97A2B; }
.mini-tag.best { background: var(--green-soft); color: var(--green); }

.post-stats {
  display: flex;
  gap: 18px;
  font-size: 13px;
  color: #8CA2B5;
  flex-shrink: 0;
  align-items: center;
}
.post-stats b { color: var(--blue); font-weight: 600; }

.section-more {
  text-align: right;
  margin-top: 18px;
  font-size: 14px;
  color: var(--blue);
}
.section-more:hover { color: var(--blue-deep); }

/* ---------- 帖子详情 ---------- */
.post-detail {
  max-width: 820px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid rgba(13, 59, 102, .08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 40px;
}

.post-detail h1 {
  font-family: var(--serif);
  font-size: 28px;
  color: var(--blue-deep);
  line-height: 1.5;
}

.post-detail .who {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0 6px;
  font-size: 14px;
  color: var(--ink-light);
}

.post-detail .content { margin-top: 20px; font-size: 16px; color: var(--ink); }
.post-detail .content p { margin-bottom: 16px; }
.post-detail .content .verse-block {
  font-family: var(--serif);
  background: var(--blue-soft);
  border-left: 4px solid var(--blue);
  border-radius: 10px;
  padding: 18px 22px;
  line-height: 2.1;
  color: var(--blue-deep);
  margin: 18px 0;
}

/* 回复 */
.comment {
  display: flex;
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px dashed rgba(13, 59, 102, .12);
}
.comment .c-body { flex: 1; }
.comment .c-who { font-size: 13px; color: var(--ink-light); }
.comment .c-who b { color: var(--blue-deep); margin-right: 8px; }
.comment .c-text { font-size: 15px; margin-top: 4px; }
.comment .c-actions { font-size: 12px; color: #8CA2B5; margin-top: 8px; }
.comment .c-actions a { margin-right: 16px; }
.comment .c-actions a:hover { color: var(--blue); }

/* ---------- 表单（发帖 / 登录） ---------- */
.form-card {
  max-width: 720px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid rgba(13, 59, 102, .08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 40px;
}
.form-card.narrow { max-width: 420px; }

.form-field { margin-bottom: 20px; }
.form-field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: 8px;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  padding: 12px 14px;
  border: 1px solid rgba(13, 59, 102, .18);
  border-radius: 10px;
  background: #FBFDFF;
  outline: none;
  transition: border .2s, box-shadow .2s;
}
.form-field textarea { min-height: 180px; resize: vertical; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(27, 109, 193, .15);
}
.form-field .hint { font-size: 12px; color: #8CA2B5; margin-top: 5px; }

.btn-submit {
  width: 100%;
  background: var(--blue);
  color: var(--white);
  font-size: 16px;
  font-weight: 600;
  padding: 13px;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s;
}
.btn-submit:hover { background: var(--blue-deep); }
.btn-submit.green { background: var(--green); }
.btn-submit.green:hover { background: #2F7F4F; }

.form-foot {
  text-align: center;
  font-size: 14px;
  color: var(--ink-light);
  margin-top: 18px;
}
.form-foot a { color: var(--blue); }
.form-foot a:hover { text-decoration: underline; }

/* ---------- 全站公告横幅 ---------- */
.announce-bar {
  max-width: 1120px;
  margin: 14px auto 0;
  padding: 10px 44px 10px 18px;
  background: linear-gradient(90deg, #FFF7E6, #FFFDF6);
  border: 1px solid #F2DCB3;
  border-left: 4px solid #D97A2B;
  border-radius: 10px;
  font-size: 14px;
  color: #8A5A1E;
  position: relative;
}
.announce-close {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: #C09B67;
  font-size: 14px;
}
.announce-close:hover { color: #8A5A1E; }

/* ---------- 管理后台 ---------- */
.adm-tabs { display: flex; gap: 8px; margin-bottom: 24px; flex-wrap: wrap; }
.adm-tab {
  font-size: 15px;
  padding: 9px 20px;
  border: 1px solid rgba(13, 59, 102, .18);
  background: #FBFDFF;
  color: var(--ink-light);
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--sans);
  transition: all .2s;
}
.adm-tab.active { background: var(--blue); border-color: var(--blue); color: var(--white); }

.adm-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.adm-table th {
  text-align: left;
  font-size: 13px;
  color: var(--ink-light);
  font-weight: 600;
  padding: 10px 8px;
  border-bottom: 2px solid rgba(13, 59, 102, .12);
}
.adm-table td {
  padding: 10px 8px;
  border-bottom: 1px solid rgba(13, 59, 102, .08);
  vertical-align: middle;
}
.adm-table td a { color: var(--blue-deep); }
.adm-table td a:hover { color: var(--blue); }
.adm-actions button {
  font-size: 12px;
  padding: 4px 10px;
  margin-right: 6px;
  border: 1px solid rgba(27, 109, 193, .4);
  background: var(--blue-soft);
  color: var(--blue);
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--sans);
}
.adm-actions button.danger {
  border-color: rgba(217, 90, 43, .4);
  background: #FDEEE3;
  color: #D97A2B;
}
.adm-actions button:hover { filter: brightness(.96); }
.adm-table { display: block; overflow-x: auto; }
.adm-table tr { display: table-row; }

.dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
@media (max-width: 640px) { .dl-grid { grid-template-columns: 1fr; } }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .nav-links a { padding: 8px 8px; font-size: 13px; }
}

@media (max-width: 560px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .brand span.name { display: none; }
  .link-login { display: none; }
  .post-row { flex-wrap: wrap; }
  .post-stats { width: 100%; justify-content: flex-end; }
  .post-detail, .form-card { padding: 26px 20px; }
}