/* =====================================================================
   scholar-blue · 学院蓝主题（参考语言：经典学院派门户）
   设计语言：深蓝顶栏/品牌行 + 白底主导航(吸顶反蓝) + 主蓝半透明下拉面板
             + 居中双线栏目标题 + 日期方块 + 深蓝圆环纹理页脚
   色彩令牌全部走 CSS 变量，theme.json color 参数经 :root 覆盖真实生效。
   ===================================================================== */

/* ---------------------------------------------------------------------
   1. 设计令牌（与 theme.json params 一一对应，禁止出现未消费的声明）
   --------------------------------------------------------------------- */
:root {
  --sp-primary: #0a5aa8;        /* 主色：顶栏/品牌行/标题/强调 */
  --sp-primary-dark: #033d70;   /* 主色加深：hover/渐变端/页脚深端 */
  --sp-primary-light: #1167bb;  /* 主色提亮：亮线条/hover 链接/角标 */
  --sp-nav-bg: #ffffff;         /* 主导航条底色（白条学院风） */
  --sp-footer-bg: #0b4781;      /* 页脚主底 */
  --sp-text: #333333;           /* 正文 */
  --sp-text-light: #777777;     /* 次要文字 */
  --sp-bg: #eff2f6;             /* 页面底色 */
  --sp-card-bg: #ffffff;        /* 卡片底 */
  --sp-border: #e3e7ee;         /* 边框/分隔线 */

  --sp-ink-on-dark: #ffffff;                 /* 深底主文字 */
  --sp-ink-on-dark-soft: rgba(255,255,255,.72); /* 深底次要文字 */
  --sp-ink-on-dark-faint: rgba(255,255,255,.45);
  --sp-panel: rgba(10,90,168,.94);           /* 下拉面板（主色半透明） */
  --sp-shadow-sm: 0 1px 4px rgba(3,61,112,.08);
  --sp-shadow-md: 0 6px 18px rgba(3,61,112,.12);
  --sp-shadow-lg: 0 14px 34px rgba(3,61,112,.18);
  --sp-radius: 6px;
  --sp-radius-lg: 10px;
  --sp-speed: .28s;
  --sp-font: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}

/* ---------------------------------------------------------------------
   2. Reset 与基础
   --------------------------------------------------------------------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--sp-font);
  font-size: 14px;
  line-height: 1.7;
  color: var(--sp-text);
  background: var(--sp-bg);
  word-break: break-word;
}

ul, ol { list-style: none; }

a { color: var(--sp-primary); text-decoration: none; transition: color var(--sp-speed) ease; }
a:hover { color: var(--sp-primary-light); }

img { max-width: 100%; display: block; border: 0; }

button { font-family: inherit; cursor: pointer; }

input, button, select, textarea { font-size: inherit; color: inherit; }

::selection { background: var(--sp-primary); color: #fff; }

/* 跳转链接：仅键盘聚焦时可见 */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 300;
  background: var(--sp-primary-dark); color: #fff;
  padding: 8px 18px; border-radius: 0 0 var(--sp-radius) 0;
}
.skip-link:focus { left: 0; color: #fff; }

/* 通用容器 */
.sp-container {
  width: 1200px; max-width: calc(100% - 40px);
  margin: 0 auto;
}

/* 屏幕阅读器专用 */
.sp-visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* 置顶徽章 */
.sp-top-badge {
  display: inline-block; flex: none;
  padding: 0 7px; line-height: 18px;
  font-size: 12px; color: #fff;
  background: var(--sp-primary-light);
  border-radius: 2px;
  letter-spacing: 1px;
}

/* 空状态 */
.sp-empty {
  padding: 56px 20px;
  text-align: center;
  color: var(--sp-text-light);
}
.sp-empty p:first-child { font-size: 16px; margin-bottom: 8px; }
.sp-empty-hint { font-size: 13px; color: var(--sp-text-light); opacity: .75; }

/* ---------------------------------------------------------------------
   3. 顶栏（深蓝细条：日期 + 院系切换）
   --------------------------------------------------------------------- */
.sp-topbar {
  background: linear-gradient(90deg, var(--sp-primary-dark), var(--sp-primary));
  color: var(--sp-ink-on-dark-soft);
  font-size: 13px;
}

.sp-topbar-inner {
  width: 1200px; max-width: calc(100% - 40px);
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  min-height: 36px;
}

.sp-topbar-date { letter-spacing: .5px; }

.sp-topbar-side { position: relative; }

/* 院系切换：细字 + 箭头，展开为深蓝面板 */
.sp-colleges { position: relative; }

.sp-colleges-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 2px;
  cursor: pointer;
}
.sp-colleges-toggle a { color: var(--sp-ink-on-dark-soft); }
.sp-colleges-toggle a:hover { color: #fff; }

.sp-colleges-arrow {
  font-style: normal; font-size: 10px;
  transition: transform var(--sp-speed) ease;
}
.sp-colleges:hover .sp-colleges-arrow { transform: rotate(180deg); }

.sp-colleges-menu {
  position: absolute; right: 0; top: calc(100% + 6px);
  min-width: 180px; max-height: 280px; overflow: auto;
  background: var(--sp-panel);
  backdrop-filter: blur(4px);
  border-top: 2px solid var(--sp-primary-light);
  border-radius: 0 0 var(--sp-radius) var(--sp-radius);
  box-shadow: var(--sp-shadow-lg);
  padding: 6px 0;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity var(--sp-speed) ease, transform var(--sp-speed) ease, visibility var(--sp-speed);
  z-index: 120;
}
.sp-colleges:hover .sp-colleges-menu,
.sp-colleges:focus-within .sp-colleges-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}

.sp-colleges-menu li a {
  display: block;
  padding: 7px 16px;
  color: var(--sp-ink-on-dark);
  font-size: 13px;
  border-left: 2px solid transparent;
  transition: background var(--sp-speed) ease, border-color var(--sp-speed) ease, padding-left var(--sp-speed) ease;
}
.sp-colleges-menu li a:hover {
  background: var(--sp-primary-dark);
  border-left-color: var(--sp-primary-light);
  padding-left: 20px;
  color: #fff;
}
.sp-colleges-menu li.active a {
  background: rgba(255,255,255,.08);
  border-left-color: var(--sp-primary-light);
  color: #fff;
}

/* ---------------------------------------------------------------------
   4. 品牌行（深蓝主区：徽标 + 站名 + 圆角搜索）
   --------------------------------------------------------------------- */
.sp-brandbar {
  background: linear-gradient(100deg, var(--sp-primary-dark) 0%, var(--sp-primary) 62%, var(--sp-primary-light) 130%);
  color: var(--sp-ink-on-dark);
  position: relative;
  overflow: hidden;
}
/* 品牌行右侧淡圆环装饰（CSS 绘制，无图片依赖） */
.sp-brandbar::before,
.sp-brandbar::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 26px solid rgba(255,255,255,.05);
  pointer-events: none;
}
.sp-brandbar::before { width: 320px; height: 320px; right: -80px; top: -170px; }
.sp-brandbar::after  { width: 200px; height: 200px; right: 180px; bottom: -140px; border-width: 16px; }

.sp-brandbar-inner {
  width: 1200px; max-width: calc(100% - 40px);
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  position: relative; z-index: 1;
}

.sp-brand {
  display: flex; align-items: center; gap: 14px;
  min-width: 0;
}

/* 徽标容器：白衬圆角方块，校徽任何底色都干净 */
.sp-brand-badge {
  flex: none;
  width: 58px; height: 58px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.94);
  border-radius: var(--sp-radius);
  box-shadow: 0 2px 8px rgba(3,61,112,.35);
  overflow: hidden;
}
.sp-brand-badge--plain { color: var(--sp-primary); }
.sp-logo { width: 100%; height: 100%; object-fit: contain; }

.sp-site-name {
  color: var(--sp-ink-on-dark);
  font-size: 27px;
  font-weight: 700;
  letter-spacing: 2px;
  line-height: 1.3;
  text-shadow: 0 2px 6px rgba(3,61,112,.4);
  white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  max-width: 560px;
}
.sp-site-name:hover { color: #fff; }

/* 搜索：白色胶囊（学院风记忆点） */
.sp-search {
  flex: none;
  display: flex; align-items: center;
  width: 300px; max-width: 36%;
  background: #fff;
  border-radius: 999px;
  padding: 3px 4px 3px 18px;
  box-shadow: 0 3px 10px rgba(3,61,112,.28);
}
.sp-search input {
  flex: 1; min-width: 0;
  border: 0; outline: none;
  background: transparent;
  font-size: 13px; color: var(--sp-text);
  line-height: 30px;
}
.sp-search input::placeholder { color: #a9b3c0; }
.sp-search button {
  flex: none;
  width: 32px; height: 32px;
  border: 0; border-radius: 50%;
  background: var(--sp-primary);
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background var(--sp-speed) ease, transform var(--sp-speed) ease;
}
.sp-search button:hover { background: var(--sp-primary-light); transform: scale(1.06); }

/* ---------------------------------------------------------------------
   5. 主导航（白底条 + 主蓝半透明下拉面板 + 吸顶反蓝）
   --------------------------------------------------------------------- */
.sp-nav {
  background: var(--sp-nav-bg);
  box-shadow: var(--sp-shadow-sm);
  position: relative;
  z-index: 100;
}
/* 顶部主蓝细线：把导航条与品牌行缝在一起 */
.sp-nav::before {
  content: "";
  display: block; height: 3px;
  background: linear-gradient(90deg, var(--sp-primary), var(--sp-primary-light));
}

.sp-nav-inner {
  width: 1200px; max-width: calc(100% - 40px);
  margin: 0 auto;
  position: relative;
}

.sp-nav-toggle { display: none; }

.sp-nav-list {
  display: flex;
  justify-content: space-between;
}

.sp-nav-list > li { position: relative; flex: 1 1 auto; text-align: center; }

.sp-nav-list > li > a {
  display: flex; align-items: center; justify-content: center; gap: 5px;
  position: relative;
  padding: 0 10px;
  height: 52px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--sp-primary-dark);
  white-space: nowrap;
  transition: color var(--sp-speed) ease, background var(--sp-speed) ease;
}
/* 底部指示条：hover/当前项 */
.sp-nav-list > li > a::after {
  content: "";
  position: absolute; left: 50%; bottom: 0;
  width: 0; height: 3px;
  background: var(--sp-primary);
  transform: translateX(-50%);
  transition: width var(--sp-speed) ease;
}
.sp-nav-list > li:hover > a,
.sp-nav-list > li.active > a {
  color: var(--sp-primary);
  background: rgba(10,90,168,.06);
}
.sp-nav-list > li:hover > a::after,
.sp-nav-list > li.active > a::after { width: 56%; }

.sp-caret {
  font-style: normal; font-size: 11px;
  opacity: .65;
  transition: transform var(--sp-speed) ease;
}
.sp-nav-list > li:hover .sp-caret { transform: rotate(180deg); }

/* —— 下拉面板：主蓝半透明、顶部亮线、项 hover 加深 + 左亮条（红线第一优先级） —— */
.sp-sub {
  position: absolute; left: 50%; top: 100%;
  transform: translate(-50%, 10px);
  min-width: 176px;
  background: var(--sp-panel);
  backdrop-filter: blur(6px);
  border-top: 3px solid var(--sp-primary-light);
  border-radius: 0 0 var(--sp-radius) var(--sp-radius);
  box-shadow: var(--sp-shadow-lg);
  padding: 6px 0;
  text-align: left;
  opacity: 0; visibility: hidden;
  transition: opacity var(--sp-speed) ease, transform var(--sp-speed) ease, visibility var(--sp-speed);
  z-index: 110;
}
.sp-nav-list > li:hover .sp-sub,
.sp-nav-list > li:focus-within .sp-sub {
  opacity: 1; visibility: visible;
  transform: translate(-50%, 0);
}

/* 面板小尖角 */
.sp-sub::before {
  content: "";
  position: absolute; left: 50%; top: -8px;
  width: 12px; height: 12px;
  background: var(--sp-primary);
  transform: translateX(-50%) rotate(45deg);
  border-radius: 2px 0 0 0;
}

.sp-sub li a {
  display: block;
  position: relative;
  margin: 2px 8px;
  padding: 9px 14px 9px 22px;
  font-size: 14px;
  color: var(--sp-ink-on-dark);
  border-radius: 4px;
  white-space: nowrap;
  transition: background var(--sp-speed) ease, padding-left var(--sp-speed) ease, color var(--sp-speed) ease;
}
/* 项前细刻度线 */
.sp-sub li a::before {
  content: "";
  position: absolute; left: 10px; top: 50%;
  width: 4px; height: 4px;
  margin-top: -2px;
  background: rgba(255,255,255,.5);
  border-radius: 50%;
  transition: background var(--sp-speed) ease, box-shadow var(--sp-speed) ease;
}
.sp-sub li a:hover {
  background: var(--sp-primary-dark);
  padding-left: 26px;
  color: #fff;
}
.sp-sub li a:hover::before {
  background: var(--sp-primary-light);
  box-shadow: 0 0 6px var(--sp-primary-light);
}

/* —— 吸顶反蓝（.sp-nav--fixed 由 main.js 滚动加挂） —— */
.sp-nav--fixed {
  position: fixed; left: 0; right: 0; top: 0;
  background: linear-gradient(90deg, var(--sp-primary-dark), var(--sp-primary));
  box-shadow: var(--sp-shadow-md);
  animation: sp-nav-drop var(--sp-speed) ease;
}
@keyframes sp-nav-drop {
  from { transform: translateY(-100%); }
  to   { transform: translateY(0); }
}
.sp-nav--fixed::before { height: 0; }
.sp-nav--fixed .sp-nav-list > li > a { color: var(--sp-ink-on-dark); }
.sp-nav--fixed .sp-nav-list > li:hover > a,
.sp-nav--fixed .sp-nav-list > li.active > a {
  color: #fff;
  background: rgba(255,255,255,.1);
}
.sp-nav--fixed .sp-nav-list > li > a::after { background: var(--sp-primary-light); }
/* 吸顶态下拉：底色更沉，与蓝条衔接 */
.sp-nav--fixed .sp-sub { background: rgba(3,61,112,.96); }
.sp-nav--fixed .sp-sub::before { background: var(--sp-primary-dark); }

/* 吸顶占位，防跳变（main.js 加挂时同步高度，解锁即移除） */
.sp-nav-holder { display: block; }

/* ---------------------------------------------------------------------
   6. 首页 banner（通栏轮播 + 圆形箭头 + 底部圆点）
   --------------------------------------------------------------------- */
.sp-banner {
  position: relative;
  overflow: hidden;
  background: var(--sp-primary-dark);
}
.sp-banner-slides { position: relative; height: 520px; }

.sp-banner-slide {
  position: absolute; inset: 0;
  opacity: 0; visibility: hidden;
  transition: opacity .8s ease, visibility .8s ease;
}
.sp-banner-slide.active { opacity: 1; visibility: visible; z-index: 1; }

.sp-banner-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
}
/* 底部渐隐遮罩上承标题 */
.sp-banner-slide::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 120px;
  background: linear-gradient(180deg, transparent, rgba(3,61,112,.66));
  pointer-events: none;
}
.sp-banner-slide.active img { animation: sp-banner-zoom 6.5s ease forwards; }
@keyframes sp-banner-zoom {
  from { transform: scale(1); }
  to   { transform: scale(1.045); }
}

.sp-banner-title {
  position: absolute; left: 6%; bottom: 34px;
  z-index: 2;
  max-width: 70%;
  color: #fff;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 1px;
  text-shadow: 0 2px 8px rgba(3,61,112,.6);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* 圆形半透明箭头（建平语言） */
.sp-banner-arrow {
  position: absolute; top: 50%; z-index: 3;
  width: 52px; height: 52px; margin-top: -26px;
  border: 2px solid rgba(255,255,255,.75);
  border-radius: 50%;
  background: rgba(3,61,112,.25);
  color: #fff;
  font-size: 26px; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  padding-bottom: 4px;
  opacity: 0;
  transition: opacity var(--sp-speed) ease, background var(--sp-speed) ease, border-color var(--sp-speed) ease;
}
.sp-banner:hover .sp-banner-arrow { opacity: 1; }
.sp-banner-arrow:hover { background: var(--sp-primary); border-color: #fff; }
.sp-banner-arrow.prev { left: 26px; }
.sp-banner-arrow.next { right: 26px; }

/* 圆点指示器 */
.sp-banner-dots {
  position: absolute; left: 0; right: 0; bottom: 18px;
  z-index: 3;
  display: flex; justify-content: center; gap: 10px;
}
.sp-banner-dots button {
  width: 10px; height: 10px;
  border: 0; border-radius: 50%;
  background: rgba(255,255,255,.55);
  transition: background var(--sp-speed) ease, transform var(--sp-speed) ease;
}
.sp-banner-dots button:hover { background: #fff; }
.sp-banner-dots button.active {
  background: #fff;
  transform: scale(1.25);
  box-shadow: 0 0 0 3px rgba(255,255,255,.25);
}

/* ---------------------------------------------------------------------
   7. 区块标题（居中双线 + 下短横）与区块通用
   --------------------------------------------------------------------- */
.sp-section { margin-top: 40px; }

.sp-block-head {
  position: relative;
  text-align: center;
  padding: 14px 0 12px;
  border-top: 1px solid var(--sp-border);
  border-bottom: 1px solid var(--sp-border);
}
.sp-block-head h2 {
  display: inline-block;
  position: relative;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--sp-primary-dark);
}
/* 标题下短横：主蓝 3px */
.sp-block-tick {
  position: absolute; left: 50%; bottom: -2px;
  width: 42px; height: 3px;
  transform: translateX(-50%);
  background: var(--sp-primary);
  border-radius: 2px;
}

/* 栏目卡头变体：左右布局（标题居左 + 更多居右） */
.sp-block-head--bar {
  text-align: left;
  padding: 0 0 10px;
  border-top: 0;
  border-bottom: 2px solid var(--sp-primary);
  display: flex; align-items: baseline; justify-content: space-between;
}
.sp-block-head--bar h2 {
  font-size: 19px;
  letter-spacing: 1px;
  padding-left: 12px;
  position: relative;
}
/* 标题左侧竖条 */
.sp-block-head--bar h2::before {
  content: "";
  position: absolute; left: 0; top: 6px; bottom: 6px;
  width: 4px;
  background: var(--sp-primary);
  border-radius: 2px;
}
.sp-block-head--bar .sp-block-tick { display: none; }

.sp-more {
  font-size: 13px;
  font-weight: 400;
  color: var(--sp-text-light);
  letter-spacing: 0;
  transition: color var(--sp-speed) ease, transform var(--sp-speed) ease;
}
.sp-more:hover { color: var(--sp-primary); transform: translateX(3px); }

/* ---------------------------------------------------------------------
   8. 头条区（左：头条推荐列表 / 右：图片新闻）
   --------------------------------------------------------------------- */
.sp-headline {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 28px;
}
/* grid 项允许收缩到轨道内：否则 nowrap 省略文本会把 auto 最小宽撑破容器（移动端横向溢出） */
.sp-headline > * { min-width: 0; }

.sp-headline-card,
.sp-focus-card {
  background: var(--sp-card-bg);
  border-radius: var(--sp-radius-lg);
  box-shadow: var(--sp-shadow-sm);
  padding: 6px 22px 18px;
}

/* 头条推荐 */
.sp-headline-list li {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 2px;
  border-bottom: 1px dashed var(--sp-border);
}
.sp-headline-list li:last-child { border-bottom: 0; }
.sp-headline-list li a {
  flex: 1; min-width: 0;
  color: var(--sp-text);
  font-size: 15px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  transition: color var(--sp-speed) ease, padding-left var(--sp-speed) ease;
}
.sp-headline-list li a:hover { color: var(--sp-primary); padding-left: 4px; }
.sp-headline-list time { flex: none; color: var(--sp-text-light); font-size: 13px; }

/* 头条头条：大标题 + 元信息 */
.sp-headline-lead {
  display: block !important;
  padding: 14px 2px 16px !important;
}
.sp-lead-title {
  display: block;
  font-size: 19px !important;
  font-weight: 700;
  color: var(--sp-primary-dark) !important;
  line-height: 1.5;
  white-space: normal !important;
  overflow: hidden;
  max-height: 3em;
}
.sp-lead-title:hover { color: var(--sp-primary) !important; padding-left: 0 !important; }
.sp-lead-meta {
  display: flex; align-items: center; gap: 10px;
  margin-top: 8px;
  font-size: 13px; color: var(--sp-text-light);
}

/* 图片新闻 */
.sp-focus-lead {
  display: block;
  margin-top: 14px;
  border-radius: var(--sp-radius);
  overflow: hidden;
  position: relative;
}
.sp-focus-cover { display: block; aspect-ratio: 16/9; overflow: hidden; background: var(--sp-bg); }
.sp-focus-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.sp-focus-lead:hover .sp-focus-cover img { transform: scale(1.05); }
.sp-focus-title {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 26px 14px 10px;
  color: #fff; font-size: 15px; font-weight: 600;
  background: linear-gradient(180deg, transparent, rgba(3,61,112,.82));
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.sp-focus-rows { margin-top: 10px; }
.sp-focus-rows li a {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 0;
}
.sp-row-cover {
  flex: none;
  width: 104px; height: 66px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--sp-bg);
}
.sp-row-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.sp-focus-rows li a:hover .sp-row-cover img { transform: scale(1.06); }
.sp-row-title {
  flex: 1; min-width: 0;
  color: var(--sp-text);
  font-size: 14px;
  line-height: 1.55;
  max-height: 3.1em;
  overflow: hidden;
  transition: color var(--sp-speed) ease;
}
.sp-focus-rows li a:hover .sp-row-title { color: var(--sp-primary); }

/* ---------------------------------------------------------------------
   9. 栏目区块（白卡三列 + 日期方块行）
   --------------------------------------------------------------------- */
.sp-blocks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 14px;
}

.sp-block {
  background: var(--sp-card-bg);
  border-radius: var(--sp-radius-lg);
  box-shadow: var(--sp-shadow-sm);
  padding: 18px 20px 14px;
  display: flex; flex-direction: column;
  min-width: 0;
  transition: box-shadow var(--sp-speed) ease, transform var(--sp-speed) ease;
}
.sp-block:hover { box-shadow: var(--sp-shadow-md); transform: translateY(-2px); }

.sp-block-list { flex: 1; }

/* 区块头条（有封面图文 / 无封面纯文） */
.sp-block-featured { border-bottom: 1px solid var(--sp-border); }
.sp-block-featured > a {
  display: block;
  padding: 12px 0 14px;
}
.sp-feat-cover {
  display: block;
  aspect-ratio: 16/9;
  border-radius: var(--sp-radius);
  overflow: hidden;
  background: var(--sp-bg);
  margin-bottom: 10px;
}
.sp-feat-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.sp-block-featured > a:hover .sp-feat-cover img { transform: scale(1.04); }

.sp-feat-title {
  display: block;
  font-size: 16px; font-weight: 700;
  color: var(--sp-primary-dark);
  line-height: 1.5;
  max-height: 3em;
  overflow: hidden;
  transition: color var(--sp-speed) ease;
}
.sp-block-featured > a:hover .sp-feat-title { color: var(--sp-primary); }
.sp-feat-summary {
  display: block;
  margin-top: 6px;
  font-size: 13px; color: var(--sp-text-light);
  line-height: 1.65;
  max-height: 3.3em;
  overflow: hidden;
}
.sp-feat-meta {
  display: flex; align-items: center; gap: 10px;
  margin-top: 8px;
  font-size: 12px; color: var(--sp-text-light);
}

/* 列表行：日期方块 + 标题（建平通知公告语言） */
.sp-block-item {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--sp-border);
}
.sp-block-item:last-child { border-bottom: 0; }

.sp-date-chip {
  flex: none;
  width: 46px;
  text-align: center;
  border-radius: 4px;
  overflow: hidden;
  background: var(--sp-bg);
  border: 1px solid var(--sp-border);
  transition: background var(--sp-speed) ease, border-color var(--sp-speed) ease;
}
.sp-date-chip b {
  display: block;
  font-size: 17px; line-height: 24px;
  font-weight: 700;
  color: var(--sp-primary);
  background: rgba(10,90,168,.08);
  transition: color var(--sp-speed) ease;
}
.sp-date-chip i {
  display: block;
  font-style: normal;
  font-size: 10px; line-height: 16px;
  color: var(--sp-text-light);
  transform: scale(.92);
}
.sp-block-item:hover .sp-date-chip {
  background: var(--sp-primary);
  border-color: var(--sp-primary);
}
.sp-block-item:hover .sp-date-chip b { color: #fff; background: transparent; }
.sp-block-item:hover .sp-date-chip i { color: rgba(255,255,255,.8); }

.sp-block-item-title {
  flex: 1; min-width: 0;
  font-size: 14px;
  color: var(--sp-text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  transition: color var(--sp-speed) ease;
}
.sp-block-item:hover .sp-block-item-title { color: var(--sp-primary); }

/* ---------------------------------------------------------------------
   10. 列表/详情/单页公共：页面卡 + 面包屑 + 页题
   --------------------------------------------------------------------- */
.sp-page { padding: 28px 0 48px; }

.sp-page-card {
  background: var(--sp-card-bg);
  border-radius: var(--sp-radius-lg);
  box-shadow: var(--sp-shadow-sm);
  padding: 26px 32px 34px;
  min-height: 420px;
}

.sp-crumb {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  font-size: 13px;
  color: var(--sp-text-light);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--sp-border);
  margin-bottom: 20px;
}
.sp-crumb a { color: var(--sp-text-light); }
.sp-crumb a:hover { color: var(--sp-primary); }
.sp-crumb-sep { color: #c3cad4; }
.sp-crumb-current { color: var(--sp-primary); }

.sp-page-title {
  position: relative;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--sp-primary-dark);
  padding-left: 16px;
  margin-bottom: 22px;
}
.sp-page-title::before {
  content: "";
  position: absolute; left: 0; top: 5px; bottom: 5px;
  width: 5px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--sp-primary), var(--sp-primary-light));
}

/* ---------------------------------------------------------------------
   11. 列表页：图文行 + 行式列表 + 分页
   --------------------------------------------------------------------- */
.sp-article-list > li { border-bottom: 1px solid var(--sp-border); }
.sp-article-list > li:last-child { border-bottom: 0; }

/* 图文行 */
.sp-article-row {
  display: flex; gap: 20px;
  padding: 18px 2px;
}
.sp-item-cover {
  flex: none;
  width: 216px; aspect-ratio: 3/2;
  border-radius: var(--sp-radius);
  overflow: hidden;
  background: var(--sp-bg);
}
.sp-item-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.sp-article-row:hover .sp-item-cover img { transform: scale(1.05); }

.sp-item-body { flex: 1; min-width: 0; padding-top: 4px; }
.sp-item-title a {
  font-size: 17px; font-weight: 600;
  color: var(--sp-text);
  line-height: 1.5;
  transition: color var(--sp-speed) ease;
}
.sp-item-title a:hover { color: var(--sp-primary); }
.sp-item-summary {
  margin-top: 8px;
  font-size: 13px; color: var(--sp-text-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sp-item-meta {
  display: flex; align-items: center; gap: 12px;
  margin-top: 10px;
  font-size: 12px; color: var(--sp-text-light);
}

/* 行式（无封面）：刻度符号 + 标题 + 右侧日期 */
.sp-article-line {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 2px;
}
.sp-line-tick {
  flex: none;
  width: 6px; height: 6px;
  background: var(--sp-primary);
  transform: rotate(45deg);
  opacity: .85;
  transition: transform var(--sp-speed) ease;
}
.sp-article-line:hover .sp-line-tick { transform: rotate(45deg) scale(1.35); }

.sp-line-main { flex: 1; min-width: 0; }
.sp-line-title {
  display: block;
  font-size: 15px;
  color: var(--sp-text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  transition: color var(--sp-speed) ease, padding-left var(--sp-speed) ease;
}
.sp-article-line:hover .sp-line-title { color: var(--sp-primary); padding-left: 4px; }
.sp-article-line .sp-item-summary { margin-top: 4px; -webkit-line-clamp: 1; }

.sp-line-side {
  flex: none;
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: var(--sp-text-light);
}

/* 分页 */
.sp-pagination {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 8px;
  margin-top: 30px;
}
.sp-pagination a {
  min-width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 10px;
  font-size: 14px;
  color: var(--sp-text);
  background: var(--sp-bg);
  border: 1px solid var(--sp-border);
  border-radius: 4px;
  transition: all var(--sp-speed) ease;
}
.sp-pagination a:hover {
  color: #fff;
  background: var(--sp-primary);
  border-color: var(--sp-primary);
}
.sp-pagination a.active {
  color: #fff;
  background: var(--sp-primary);
  border-color: var(--sp-primary);
  font-weight: 700;
  box-shadow: 0 3px 8px rgba(10,90,168,.35);
}
.sp-pagination a.disabled {
  opacity: .45; pointer-events: none;
}

/* ---------------------------------------------------------------------
   12. 详情/单页：文章排版
   --------------------------------------------------------------------- */
.sp-article-title {
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  color: var(--sp-primary-dark);
  line-height: 1.5;
  padding: 6px 20px 0;
}

.sp-article-meta {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 6px 22px;
  padding: 14px 0 18px;
  margin-bottom: 24px;
  font-size: 13px; color: var(--sp-text-light);
  border-bottom: 1px solid var(--sp-border);
  position: relative;
}
/* 标题下居中短横（与区块标题语言呼应） */
.sp-article-meta::before {
  content: "";
  position: absolute; left: 50%; top: -12px;
  width: 42px; height: 3px;
  transform: translateX(-50%);
  background: var(--sp-primary);
  border-radius: 2px;
}

.sp-article-content {
  font-size: 15px;
  line-height: 1.9;
  color: var(--sp-text);
}
.sp-article-content p { margin: 0 0 14px; }
.sp-article-content h1, .sp-article-content h2,
.sp-article-content h3, .sp-article-content h4 {
  margin: 22px 0 12px;
  color: var(--sp-primary-dark);
  font-weight: 700;
}
.sp-article-content h2 { font-size: 19px; }
.sp-article-content h3 { font-size: 17px; }
.sp-article-content h4 { font-size: 15px; }
.sp-article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--sp-radius);
  margin: 6px auto 14px;
  box-shadow: var(--sp-shadow-sm);
}
.sp-article-content ul, .sp-article-content ol {
  margin: 0 0 14px; padding-left: 26px;
}
.sp-article-content ul li { list-style: disc; }
.sp-article-content ol li { list-style: decimal; }
.sp-article-content li { margin-bottom: 6px; }
.sp-article-content blockquote {
  margin: 14px 0;
  padding: 12px 18px;
  background: rgba(10,90,168,.05);
  border-left: 4px solid var(--sp-primary);
  border-radius: 0 var(--sp-radius) var(--sp-radius) 0;
  color: var(--sp-text-light);
}
.sp-article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 14px;
}
.sp-article-content th, .sp-article-content td {
  border: 1px solid var(--sp-border);
  padding: 8px 12px;
  text-align: left;
}
.sp-article-content th {
  background: rgba(10,90,168,.06);
  color: var(--sp-primary-dark);
  font-weight: 600;
}
.sp-article-content a { color: var(--sp-primary-light); text-decoration: underline; }
.sp-article-content hr {
  border: 0; height: 1px;
  background: var(--sp-border);
  margin: 20px 0;
}
.sp-article-content video, .sp-article-content audio { max-width: 100%; }

/* 上下篇 */
.sp-sibling {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--sp-border);
}
.sp-sib, .sp-sib-none {
  display: block;
  padding: 12px 16px;
  border: 1px solid var(--sp-border);
  border-radius: var(--sp-radius);
  background: var(--sp-bg);
  min-width: 0;
  transition: border-color var(--sp-speed) ease, background var(--sp-speed) ease, box-shadow var(--sp-speed) ease;
}
.sp-sib:hover {
  border-color: var(--sp-primary);
  background: var(--sp-card-bg);
  box-shadow: var(--sp-shadow-sm);
}
.sp-sib.next { text-align: right; }
.sp-sib-label {
  display: block;
  font-size: 12px;
  color: var(--sp-primary);
  letter-spacing: 2px;
  margin-bottom: 4px;
}
.sp-sib-title {
  display: block;
  font-size: 14px;
  color: var(--sp-text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sp-sib-none { opacity: .6; }
.sp-sib-none .sp-sib-label { color: var(--sp-text-light); }

/* ---------------------------------------------------------------------
   13. 页脚（深蓝渐变 + 同心圆环纹理 + 三栏 + 底条）
   --------------------------------------------------------------------- */
.sp-footer {
  position: relative;
  margin-top: 56px;
  color: var(--sp-ink-on-dark);
  background: linear-gradient(160deg, var(--sp-footer-bg) 0%, var(--sp-primary-dark) 100%);
  overflow: hidden;
}

/* 同心圆环纹理（CSS 绘制，呼应校徽环形语言） */
.sp-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.06);
  pointer-events: none;
}
.sp-ring--1 { width: 460px; height: 460px; right: -140px; top: -160px; border-width: 30px; }
.sp-ring--2 { width: 300px; height: 300px; right: -60px; top: -80px; border-width: 18px; }
.sp-ring--3 { width: 520px; height: 520px; left: -200px; bottom: -300px; border-width: 34px; }

.sp-footer-inner {
  width: 1200px; max-width: calc(100% - 40px);
  margin: 0 auto;
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 1.2fr 1.4fr;
  gap: 40px;
  padding: 44px 0 36px;
}
.sp-footer-inner > * { min-width: 0; }

.sp-footer-brand {
  display: flex; align-items: center; gap: 14px;
}
.sp-footer-badge {
  flex: none;
  width: 66px; height: 66px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.94);
  border-radius: var(--sp-radius);
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(3,61,112,.4);
}
.sp-footer-badge--plain { color: var(--sp-primary); }
.sp-footer-logo { width: 100%; height: 100%; object-fit: contain; }
.sp-footer-site {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 1.5px;
  line-height: 1.45;
  text-shadow: 0 2px 6px rgba(3,61,112,.4);
}

.sp-footer-info { padding-top: 6px; }
.sp-footer-line {
  display: flex; align-items: baseline; gap: 10px;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--sp-ink-on-dark-soft);
  line-height: 1.7;
}
.sp-dot {
  flex: none;
  width: 6px; height: 6px;
  background: var(--sp-primary-light);
  border-radius: 50%;
  transform: translateY(-2px);
  box-shadow: 0 0 6px rgba(17,103,187,.9);
}

.sp-footer-links {
  padding-top: 6px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 28px;
}
.sp-group-name {
  display: inline-block;
  font-size: 13px; font-weight: 600;
  color: #fff;
  padding-bottom: 4px;
  margin-bottom: 6px;
  border-bottom: 2px solid var(--sp-primary-light);
}
.sp-links-row {
  display: flex; flex-wrap: wrap; gap: 4px 14px;
  margin-bottom: 10px;
}
.sp-links-row a {
  font-size: 13px;
  color: var(--sp-ink-on-dark-soft);
  transition: color var(--sp-speed) ease, padding-left var(--sp-speed) ease;
}
.sp-links-row a:hover { color: #fff; padding-left: 2px; }

.sp-footer-bottom {
  position: relative; z-index: 1;
  border-top: 1px solid rgba(255,255,255,.14);
  text-align: center;
  padding: 16px 0;
  font-size: 13px;
  color: var(--sp-ink-on-dark-faint);
  letter-spacing: 1px;
}

/* ---------------------------------------------------------------------
   14. 响应式：1200 / 992 / 768 三档
   --------------------------------------------------------------------- */
@media (max-width: 1240px) {
  .sp-container, .sp-topbar-inner, .sp-brandbar-inner, .sp-nav-inner { max-width: calc(100% - 40px); }
}

@media (max-width: 992px) {
  .sp-site-name { font-size: 22px; max-width: 380px; }
  .sp-search { width: 240px; }

  .sp-nav-list { flex-wrap: wrap; justify-content: flex-start; }
  .sp-nav-list > li { flex: 0 0 auto; }
  .sp-nav-list > li > a { height: 46px; font-size: 15px; padding: 0 12px; }

  .sp-headline { grid-template-columns: 1fr; }
  .sp-blocks { grid-template-columns: repeat(2, 1fr); }

  .sp-banner-slides { height: 380px; }
  .sp-banner-title { font-size: 19px; bottom: 28px; }

  .sp-footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  /* —— 品牌行收纳 —— */
  .sp-brandbar-inner { flex-direction: column; align-items: stretch; gap: 14px; padding: 16px 0; }
  .sp-site-name { font-size: 19px; max-width: none; white-space: normal; }
  .sp-brand { justify-content: center; }
  .sp-search { width: 100%; max-width: none; }

  /* —— 移动端导航：抽屉展开 —— */
  .sp-nav-toggle {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 40px;
    padding: 8px;
    border: 1px solid var(--sp-border);
    border-radius: var(--sp-radius);
    background: var(--sp-card-bg);
  }
  .sp-nav-toggle span {
    display: block; height: 2px;
    background: var(--sp-primary);
    border-radius: 2px;
    transition: transform var(--sp-speed) ease, opacity var(--sp-speed) ease;
  }
  .sp-nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .sp-nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .sp-nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .sp-nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 0; }
  /* 吸顶在移动端直接融入文档流配色 */
  .sp-nav--fixed { position: sticky; animation: none; }

  .sp-nav-list {
    display: none;
    position: absolute; left: -20px; right: -20px; top: 100%;
    flex-direction: column;
    background: var(--sp-card-bg);
    box-shadow: var(--sp-shadow-md);
    border-top: 1px solid var(--sp-border);
    padding: 6px 16px 12px;
    max-height: 68vh; overflow: auto;
  }
  .sp-nav-list.sp-open { display: flex; }
  .sp-nav-list > li { text-align: left; border-bottom: 1px solid var(--sp-border); }
  .sp-nav-list > li:last-child { border-bottom: 0; }
  .sp-nav-list > li > a { height: 46px; justify-content: flex-start; }
  .sp-nav-list > li > a::after { display: none; }

  /* 移动端二级：手风琴内联展开（.sp-sub-open 由 main.js 控制） */
  .sp-sub {
    position: static;
    display: none;
    transform: none;
    opacity: 1; visibility: visible;
    background: var(--sp-bg);
    border-top: 0;
    box-shadow: none;
    border-radius: 0;
    margin: 0 -8px 8px;
    padding: 4px 0;
  }
  .sp-sub::before { display: none; }
  .sp-sub li a { color: var(--sp-text); margin: 0 8px; }
  .sp-sub li a:hover { background: rgba(10,90,168,.08); color: var(--sp-primary); }
  .sp-sub li a::before { background: var(--sp-primary); opacity: .5; }
  .sp-nav-list li.sp-sub-open .sp-sub { display: block; }
  .sp-nav-list li.has-sub > a { cursor: pointer; }

  /* —— 内容收纳 —— */
  .sp-banner-slides { height: 240px; }
  .sp-banner-title { font-size: 15px; left: 16px; bottom: 20px; max-width: 85%; }
  .sp-banner-arrow { display: none; }

  .sp-section { margin-top: 28px; }
  .sp-blocks { grid-template-columns: 1fr; }
  .sp-block-head h2 { font-size: 19px; }

  .sp-article-row { flex-direction: column; gap: 12px; }
  .sp-item-cover { width: 100%; }
  .sp-article-line { flex-wrap: wrap; }
  .sp-line-side { width: 100%; padding-left: 18px; }

  .sp-page-card { padding: 18px 16px 24px; }
  .sp-article-title { font-size: 20px; padding: 0; }
  .sp-article-meta { gap: 4px 14px; }
  .sp-sibling { grid-template-columns: 1fr; }
  .sp-sib-title { white-space: normal; }

  .sp-footer-inner { grid-template-columns: 1fr; gap: 26px; padding: 32px 0 26px; }
  .sp-footer-links { grid-template-columns: 1fr; }
  .sp-ring--1 { width: 300px; height: 300px; border-width: 20px; }
}

/* ---------------------------------------------------------------------
   15. 动效偏好：尊重系统减弱动态设置
   --------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* B4 友链 Logo：与名称并排小图（高度 ~20px，垂直居中；过宽截断不撑破页脚） */
.links-group a .link-logo,
.sp-links-row a .link-logo {
    height: 20px;
    width: auto;
    max-width: 64px;
    object-fit: contain;
    vertical-align: middle;
    margin-right: 4px;
    border-radius: 2px;
}