/* ============================================================
   ISCAS 考研报考指南 · 全局自定义样式（Animate UI 风格）
   简洁 · 渐变 · 大圆角卡片 · 兼顾浅色/深色模式
   ============================================================ */

/* ---------- 品牌色（覆盖 Material 主色，墨蓝米白系） ---------- */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #CC0028;
  --md-primary-fg-color--light: #E03A58;
  --md-primary-fg-color--dark: #99001E;
  --md-accent-fg-color: #A30020;
  --isc-grad-a: #CC0028;
  --isc-grad-b: #A80022;
  --isc-accent: #CC0028;
  --isc-accent-soft: rgba(204, 0, 40, 0.07);
  --isc-border: rgba(204, 0, 40, 0.16);
  /* 实底按钮/色块渐变（白字需深色终点，避免浅色终点过亮） */
  --isc-grad-btn-a: #CC0028;
  --isc-grad-btn-b: #A80022;
  --isc-card-bg: #ffffff;
  --isc-tip-bg: #fff7e6;
  --isc-tip-border: #f59e0b;
}
/* ---------- 字体 ---------- */
body {
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei",
    "PingFang SC", "Noto Sans SC", "Source Han Sans SC", sans-serif;
}

/* ---------- 首页布局 ---------- */
.isc-home {
  max-width: 72rem;
}

/* ============ Hero ============ */
.isc-hero {
  position: relative;
  text-align: center;
  padding: 3rem 1.5rem 3rem;
  margin: -1rem -1.4rem 0;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(180deg, var(--isc-accent-soft), transparent 75%);
}
/* 背景装饰层：改为红白渐变，与官网风格一致 */
.isc-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(204, 0, 40, 0.06), transparent 70%);
}
/* 背景光斑（Animate UI 风格） */
.isc-hero::before,
.isc-hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
  pointer-events: none;
}
.isc-hero::before {
  width: 380px; height: 380px;
  top: -140px; left: -80px;
  background: radial-gradient(circle, var(--isc-grad-a), transparent 70%);
}
.isc-hero::after {
  width: 340px; height: 340px;
  bottom: -120px; right: -60px;
  background: radial-gradient(circle, var(--isc-grad-b), transparent 70%);
}
.isc-hero__slogan {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  margin: 0 0 0.9rem;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  background: linear-gradient(120deg, var(--isc-grad-a), var(--isc-grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
/* 标语两侧装饰横杠：颜色与渐变文字一致（官网红） */
.isc-hero__slogan::before,
.isc-hero__slogan::after {
  content: "";
  width: 2.6rem;
  height: 1px;
  background: #CC0028;
  flex: none;
}
.isc-hero__title {
  position: relative;
  margin: 0 0 1rem;
  font-size: 2.9rem;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #CC0028 !important; /* 浅色中央文字区：标题固定官网红 */
}
.isc-grad {
  background: linear-gradient(120deg, var(--isc-grad-a), var(--isc-grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
/* 浅色中央文字区：标语与标题渐变用官网红（用 background-image，避免覆盖 background-clip: text） */
.isc-hero__slogan,
.isc-hero .isc-grad {
  background-image: linear-gradient(120deg, #CC0028, #A80022);
}
.isc-hero__subtitle {
  position: relative;
  margin: 0 auto 1.8rem;
  max-width: 30rem;
  font-size: 1.05rem;
  line-height: 1.9;
  color: rgba(22, 42, 70, 0.8); /* 浅色中央文字区：副标题深蓝 */
}
.isc-hero__actions {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

/* ---------- 按钮 ---------- */
.isc-btn {
  display: inline-block;
  padding: 0.62rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.isc-btn:hover { transform: translateY(-2px); text-decoration: none; }
/* 按钮文字颜色用更高优先级，避免被 Material 的 .md-typeset a 覆盖 */
.md-typeset .isc-btn--primary {
  background: linear-gradient(120deg, var(--isc-grad-btn-a), var(--isc-grad-btn-b));
  color: #fff;
  box-shadow: 0 4px 14px rgba(22, 42, 70, 0.35);
}
.md-typeset .isc-btn--primary:hover {
  box-shadow: 0 8px 22px rgba(22, 42, 70, 0.4);
  color: #fff;
}
.md-typeset .isc-btn--ghost {
  background: var(--isc-card-bg);
  color: var(--md-typeset-color);
  border: 1px solid var(--isc-border);
}
.md-typeset .isc-btn--ghost:hover { border-color: var(--isc-accent); color: var(--md-typeset-color); }
.md-typeset .isc-btn--soft {
  background: var(--isc-accent-soft);
  color: var(--isc-accent);
  border: 1px solid var(--isc-border);
}
.md-typeset .isc-btn--soft:hover { background: var(--isc-accent); color: #fff; }

/* Hero 浅色中央区：按钮用红色系（实心主按钮 + 红色描边次按钮） */
.md-typeset .isc-hero .isc-btn--primary {
  background: linear-gradient(120deg, #CC0028, #A80022);
  color: #fff;
  box-shadow: 0 4px 14px rgba(204, 0, 40, 0.3);
}
.md-typeset .isc-hero .isc-btn--primary:hover { color: #fff; }
.md-typeset .isc-hero .isc-btn--ghost {
  background: transparent;
  color: #CC0028;
  border-color: rgba(204, 0, 40, 0.4);
}
.md-typeset .isc-hero .isc-btn--ghost:hover { border-color: #CC0028; color: #CC0028; }

/* ============ 数据统计条 ============ */
.isc-stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.8rem;
  margin: 1.6rem 0 0;
}
.isc-stat {
  padding: 1.05rem 0.5rem;
  text-align: center;
  border-radius: 16px;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.isc-stat:hover { transform: translateY(-3px); box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1); }
.isc-stat b {
  display: block;
  font-size: 1.6rem;
  line-height: 1.2;
  font-weight: 800;
  background: linear-gradient(120deg, var(--isc-grad-a), var(--isc-grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.isc-stat span {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.76rem;
  color: var(--md-default-fg-color--light);
}

/* ============ Section 通用 ============ */
.isc-section {
  margin: 2.6rem 0 0;
}
.isc-section__head {
  margin-bottom: 1.3rem;
}
.isc-pill {
  display: inline-block;
  padding: 0.2rem 0.8rem;
  margin-bottom: 0.6rem;
  border-radius: 999px;
  background: var(--isc-accent-soft);
  color: var(--isc-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.isc-section__head h2 {
  margin: 0 0 0.3rem;
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--md-typeset-color);
}
.isc-section__sub {
  margin: 0;
  max-width: 42rem;
  color: var(--md-default-fg-color--light);
  font-size: 0.95rem;
  line-height: 1.8;
}
/* ---------- 研究所概况：标题文字 + 位置示意图并排 ---------- */
.isc-overview {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.isc-overview__text { flex: 0 0 auto; }
.isc-overview__text h2 { margin-top: 0; }
.isc-overview__map {
  flex: 0 0 auto;
  margin: 0 auto;
  max-height: 8rem;
  max-width: 45%;
  height: auto;
  width: auto;
  border-radius: 12px;
  border: 1px solid var(--isc-border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
/* ---------- 研究所概况：位置优势（图片 + Top 10 距离） ---------- */
.isc-location { margin-top: 1.6rem; }
.isc-location__head h3,
.isc-subhead h3 {
  margin: 0 0 0.3rem;
  padding: 0;
  border-bottom: none;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--md-typeset-color);
}
.isc-subhead {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.6rem;
  margin-bottom: 0.3rem;
}
.isc-subhead h3 { margin: 0; }
.isc-hint {
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--md-default-fg-color--light);
  margin-top: 0.18rem;
}
.isc-location__head .isc-section__sub { margin-bottom: 0; }
.isc-location__head .isc-section__sub b { color: var(--isc-accent); font-weight: 800; }
.isc-location__card {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: stretch;
  margin-top: 1rem;
  padding: 1.1rem;
  border-radius: 20px;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.isc-location__card:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(0, 0, 0, 0.1); }
.isc-location__fig {
  margin: 0;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.isc-location__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 12px;
}
.isc-location__list {
  list-style: none;
  margin: 0;
  padding: 0.25rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  overflow: hidden;
}
.isc-loc {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.8rem;
  padding: 0.45rem 0.7rem;
  border-radius: 12px;
  background: transparent;
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.isc-loc:hover { background: var(--isc-accent-soft); transform: translateX(2px); border-color: var(--isc-border); }
.isc-loc__rank {
  grid-row: 1;
  grid-column: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--isc-accent);
  background: var(--isc-accent-soft);
}
.isc-loc__body {
  grid-row: 1;
  grid-column: 2;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.isc-loc__body b {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--md-typeset-color);
}
.isc-loc__body small {
  display: block;
  font-size: 0.74rem;
  line-height: 1.35;
  color: var(--md-default-fg-color--light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.isc-loc__meta {
  grid-row: 1;
  grid-column: 3;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
  min-width: 4rem;
  margin-left: 0.3rem;
}
.isc-loc__dist {
  display: inline-flex;
  align-items: baseline;
  gap: 0.2rem;
  font-size: 1.05rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--md-typeset-color);
  line-height: 1;
}
.isc-loc__dist small { font-size: 0.72rem; font-weight: 600; color: var(--md-default-fg-color--light); }
.isc-loc__bar {
  width: 3rem;
  height: 3px;
  border-radius: 2px;
  background: var(--isc-accent-soft);
  overflow: hidden;
}
.isc-loc__bar::after {
  content: "";
  display: block;
  height: 100%;
  width: var(--dist, 0%);
  border-radius: 2px;
  background: linear-gradient(90deg, var(--isc-grad-a), var(--isc-grad-b));
  transition: width 0.4s ease;
}
.isc-loc__walk {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: #fff;
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.35);
  white-space: nowrap;
}
/* 前两名（字节 / 搜狐）步行可达，渐变高亮 */
.isc-loc--top {
  background: linear-gradient(120deg, var(--isc-grad-btn-a), var(--isc-grad-btn-b));
  border-color: transparent;
}
.isc-loc--top:hover { background: linear-gradient(120deg, var(--isc-grad-btn-a), var(--isc-grad-btn-b)); border-color: transparent; }
.isc-loc--top .isc-loc__rank { color: #fff; background: rgba(255, 255, 255, 0.18); }
.isc-loc--top .isc-loc__body b { color: #fff; }
.isc-loc--top .isc-loc__body small { color: rgba(255, 255, 255, 0.78); }
.isc-loc--top .isc-loc__dist { color: #fff; }
.isc-loc--top .isc-loc__dist small { color: rgba(255, 255, 255, 0.78); }
.isc-loc--top .isc-loc__bar { background: rgba(255, 255, 255, 0.25); }
.isc-loc--top .isc-loc__bar::after { background: #fff; }
.isc-location__head .isc-section__sub a {
  color: var(--isc-accent);
  font-weight: 600;
  white-space: nowrap;
}
/* ---------- 实验室标签 ---------- */
.isc-labs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
}
.isc-chip {
  display: inline-block;
  padding: 0.32rem 0.8rem;
  border-radius: 999px;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  color: var(--md-default-fg-color);
  font-size: 0.8rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.isc-chip:hover { border-color: var(--isc-accent); transform: translateY(-1px); }
.isc-chip[data-tip] { position: relative; }
.isc-chip[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  max-width: 15rem;
  padding: 0.3rem 0.7rem;
  border-radius: 8px;
  background: #8C001B;
  color: #fff;
  font-size: 0.72rem;
  line-height: 1.5;
  white-space: normal;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
  z-index: 20;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}
.isc-chip[data-tip]:hover::after,
.isc-chip[data-tip]:focus-visible::after {
  opacity: 1;
}
.isc-links { display: flex; gap: 0.7rem; flex-wrap: wrap; }

/* ---------- 性价比亮点 ---------- */
.isc-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}
.isc-feature {
  padding: 1.2rem 1.2rem 1.05rem;
  border-radius: 16px;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.isc-feature:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1); border-color: var(--isc-accent); }
.isc-feature__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.4rem; height: 2.4rem;
  border-radius: 12px;
  background: var(--isc-accent-soft);
}
.isc-feature__icon svg {
  width: 1.25rem; height: 1.25rem;
}
.isc-feature b {
  display: block;
  margin: 0.6rem 0 0.3rem;
  font-size: 1rem;
  color: var(--md-typeset-color);
}
.isc-feature p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--md-default-fg-color--light);
}

/* ---------- 理性看待提示 ---------- */
.isc-tip {
  margin: 1.1rem 0 0;
  padding: 0.85rem 1.1rem;
  border-radius: 14px;
  background: var(--isc-tip-bg);
  border-left: 4px solid var(--isc-tip-border);
  font-size: 0.87rem;
  line-height: 1.8;
  color: var(--md-typeset-color);
}
.isc-tip__icon {
  display: inline-block;
  width: 1.05em;
  height: 1.05em;
  margin-right: 0.4em;
  vertical-align: -0.18em;
}

/* ---------- 核心指南入口 ---------- */
.isc-entry {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.isc-entry-card {
  display: block;
  padding: 1.6rem 1.6rem 1.3rem;
  border-radius: 18px;
  text-decoration: none;
  color: var(--md-typeset-color);
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.isc-entry-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.12);
  border-color: var(--isc-accent);
  text-decoration: none;
}
.isc-entry-card__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3rem; height: 3rem;
  border-radius: 14px;
  background: var(--isc-accent-soft);
}
.isc-entry-card__title { display: block; margin: 0.8rem 0 0.4rem; font-size: 1.2rem; font-weight: 800; color: var(--md-typeset-color); }
.isc-entry-card__icon svg {
  width: 1.4rem; height: 1.4rem;
}
.isc-entry-card p { margin: 0 0 0.8rem; font-size: 0.86rem; line-height: 1.7; color: var(--md-default-fg-color--light); }
.isc-entry-card__more { font-size: 0.86rem; font-weight: 700; color: var(--isc-accent); }

/* ---------- 近三年数据分析图 ---------- */
.isc-figs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}
.isc-fig {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0.9rem;
  border-radius: 16px;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.isc-fig:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1); }
.isc-fig img {
  display: block;
  width: 100%;
  flex: 1 1 auto;
  object-fit: contain;
  border-radius: 10px;
  background: #fff;
}
.isc-fig figcaption {
  /* Material 默认 max-width:24rem 会限宽；margin:auto 让图注盒子相对卡片水平居中 */
  margin: 0.6rem auto 0.1rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  color: var(--md-typeset-color);
}
/* 重点大图：居中限宽展示 */
.isc-fig--feature {
  max-width: 820px;
  width: 100%;
  margin: 0 auto;
}

/* ---------- 经验贴卡片网格 ---------- */
.isc-exp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}
.isc-exp-card {
  position: relative;
  display: block;
  padding: 1.15rem 1.2rem;
  border-radius: 16px;
  text-decoration: none;
  color: var(--md-typeset-color);
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.isc-exp-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
  border-color: var(--isc-accent);
  text-decoration: none;
}
.isc-exp-card__title {
  display: block;
  margin: 0.55rem 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--md-typeset-color);
}
.isc-crown {
  display: inline-block;
  width: 0.95em;
  height: 0.95em;
  margin-left: 0.28em;
  vertical-align: -0.12em;
}
.isc-exp-card p {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--md-default-fg-color--light);
}

/* ---------- 层次标签 ---------- */
.isc-tag {
  display: inline-block;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: #fff;
}
.isc-tag--985 { background: #3A3149; }
.isc-tag--sf  { background: #1C2228; }
.isc-tag--sf4 { background: #2B4248; }
.isc-tag--mb  { background: #2C3E50; }

/* ---------- 投稿流程 ---------- */
.isc-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.isc-step {
  position: relative;
  padding: 1.4rem 1.4rem 1.2rem;
  border-radius: 16px;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}
.isc-step__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.2rem; height: 2.2rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(120deg, var(--isc-grad-btn-a), var(--isc-grad-btn-b));
}
.isc-step__title {
  margin: 0.7rem 0 0.3rem;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--md-typeset-color);
}
.isc-step__body p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--md-default-fg-color--light);
}
/* ---------- 标题右侧带按钮的 section 头部 ---------- */
.isc-section__head--split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  flex-wrap: wrap;
}
.isc-section__head--split .isc-section__text { flex: 1 1 18rem; }
.isc-section__head--split .isc-btn { flex: 0 0 auto; margin-bottom: 0.2rem; }

/* ---------- 居中版小节（相关站点） ---------- */
.isc-section--center {
  text-align: center;
}
.isc-section--center .isc-section__head { text-align: center; }
.isc-section--center .isc-section__sub { margin-left: auto; margin-right: auto; }
.isc-section--center .isc-links { justify-content: center; }

/* ---------- 感谢名单 ---------- */
.isc-thanks {
  text-align: center;
}
.isc-thanks .isc-section__head { text-align: center; }
.isc-thanks .isc-section__sub { margin-left: auto; margin-right: auto; }
.isc-avatars {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 1.2rem 0 1rem;
}
.isc-avatar img {
  display: block;
  width: 54px; height: 54px;
  border-radius: 50%;
  border: 2px solid var(--isc-border);
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.isc-avatar:hover img { transform: translateY(-3px); border-color: var(--isc-accent); }
.isc-thanks__note {
  margin: 0;
  color: var(--md-default-fg-color--light);
  font-size: 0.9rem;
  line-height: 2;
}

/* ---------- 技术栈 ---------- */
.isc-tech {
  margin-top: 3rem;
  padding: 1.2rem;
  text-align: center;
  border-radius: 14px;
  background: var(--isc-card-bg);
  border: 1px dashed var(--isc-border);
  font-size: 0.85rem;
  color: var(--md-default-fg-color--light);
}
.isc-tech b { color: var(--md-typeset-color); }

/* ---------- 免责声明 ---------- */
.isc-disclaimer {
  margin-top: 1rem;
  padding: 0.85rem 1.1rem;
  border-radius: 14px;
  background: var(--isc-card-bg);
  border: 1px dashed var(--isc-border);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--md-default-fg-color--light);
  text-align: center;
}
.isc-disclaimer a { color: var(--md-typeset-a-color); }

/* ============ 内容页美化（全局） ============ */
.md-typeset {
  font-size: 0.92rem;
  line-height: 1.75;
}
.md-typeset h1 { font-weight: 800; letter-spacing: -0.01em; }
.md-typeset h2, .md-typeset h3 { font-weight: 700; }
.md-typeset blockquote {
  border-left: 0.25rem solid var(--isc-accent);
  background: var(--isc-accent-soft);
  border-radius: 0 10px 10px 0;
  margin-left: 0;
  margin-right: 0;
  padding: 0.6rem 1rem;
}
.md-typeset .admonition, .md-typeset details {
  border-radius: 12px;
  box-shadow: none;
  border-width: 0;
  border-left: 0.25rem solid var(--md-admonition-icon--note);
}
.md-typeset table:not([class]) {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}
.md-typeset code { border-radius: 5px; }
.md-typeset pre > code { border-radius: 10px; }
.md-typeset img { border-radius: 10px; }
.md-typeset a { text-decoration: none; }
.md-typeset a:hover { text-decoration: underline; }

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  .isc-hero { padding: 3rem 1.2rem 2.5rem; }
  .isc-hero__title { font-size: 2.3rem; }
  .isc-stats { grid-template-columns: repeat(3, 1fr); }
  .isc-entry, .isc-feature-grid, .isc-exp-grid, .isc-steps { grid-template-columns: repeat(2, 1fr); }
  /* 位置优势：平板端图片与列表改纵向堆叠 */
  .isc-location__card { grid-template-columns: 1fr; }
  .isc-location__fig img { max-width: 100%; }
}
@media (max-width: 600px) {
  .isc-hero__title { font-size: 1.9rem; }
  .isc-stats { grid-template-columns: repeat(2, 1fr); }
  .isc-entry, .isc-feature-grid, .isc-exp-grid, .isc-figs, .isc-steps { grid-template-columns: 1fr; }
  .isc-avatar img { width: 46px; height: 46px; }
  /* 研究所概况：手机端标题与位置图改为纵向堆叠，图片自适应宽度并居中（桌面布局不变） */
  .isc-overview { flex-direction: column; align-items: stretch; }
  .isc-overview__map { margin: 0 auto; width: auto; max-width: 100%; max-height: 10rem; }
  .isc-location__fig img { max-width: 100%; }
  .isc-location__list { padding: 0; gap: 0.35rem; }
  .isc-loc { padding: 0.5rem 0.6rem; gap: 0.7rem; }
  .isc-loc__meta { min-width: 3.8rem; margin-left: 0.3rem; }
  .isc-loc__dist { font-size: 0.95rem; }
}

/* ---------- 首页「推免生源」亮点条 ---------- */
.isc-stats--tuimian {
  grid-template-columns: repeat(4, 1fr);
  margin-top: 0.4rem;
}
.isc-figs--tuimian { margin-top: 1.5rem; }
@media (max-width: 900px) {
  .isc-stats--tuimian { grid-template-columns: repeat(2, 1fr); }
}

/* ============ 经验贴「基本信息」信息卡 ============ */
.isc-info-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 0.5rem 1.4rem;
  margin: 1rem 0 1.4rem !important;
  padding: 1.2rem 1.4rem !important;
  border-radius: 16px;
  list-style: none;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}
.isc-info-list li {
  padding: 0.15rem 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--md-default-fg-color--light);
}
.isc-info-list li strong {
  display: inline-block;
  min-width: 4.5em;
  margin-right: 0.3rem;
  color: var(--md-typeset-color);
  font-weight: 700;
}

/* ============ 效忠软件所 ============ */
.isc-pledge {
  margin: 2.4rem 0 0;
  padding: 2.4rem 1.5rem;
  text-align: center;
  border-radius: 16px;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}
.isc-pledge-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 2.2rem;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(120deg, var(--isc-grad-btn-a), var(--isc-grad-btn-b));
  box-shadow: 0 6px 22px rgba(22, 42, 70, 0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.isc-pledge-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 12px 30px rgba(22, 42, 70, 0.5);
}
.isc-pledge-btn:active { transform: scale(0.95); }
.isc-pledge-btn svg {
  width: 1.05rem; height: 1.05rem;
}
.isc-pledge-hint {
  margin: 0.9rem 0 0;
  font-size: 0.9rem;
  color: var(--md-default-fg-color--light);
}
.isc-pledge-count {
  color: var(--isc-accent);
  font-weight: 800;
}

/* ---------- 效忠弹窗 ---------- */
.isc-pledge-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(8, 12, 26, 0.55);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.isc-pledge-overlay[hidden] { display: none; }
.isc-pledge-card {
  position: relative;
  width: 100%;
  max-width: 300px;
  padding: 2.4rem 1.8rem 2rem;
  text-align: center;
  border-radius: 22px;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  animation: isc-pop 0.35s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}
.isc-pledge-card > * { position: relative; z-index: 1; }
.isc-pledge-glow {
  position: absolute;
  inset: -45% -45%;
  z-index: 0;
  background: conic-gradient(from 0deg,
    transparent 0deg, var(--isc-grad-a) 60deg, transparent 120deg,
    transparent 180deg, var(--isc-grad-b) 240deg, transparent 300deg);
  opacity: 0.22;
  animation: isc-spin 4s linear infinite;
  pointer-events: none;
}
.isc-pledge-emoji {
  display: block;
  width: 150px;
  height: 150px;
  margin: 0 auto 1.2rem;
  border-radius: 18px;
  object-fit: cover;
  border: 3px solid var(--isc-border);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
}
.isc-pledge-result--number {
  display: inline-block;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--md-typeset-color);
  background: var(--isc-accent-soft);
  border: 1px solid var(--isc-border);
}

/* ---------- 效忠重复点击提示（醒目渐变大字） ---------- */
.isc-pledge-result--message {
  display: block;
  margin: 0.3rem 0 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.04em;
  background: linear-gradient(120deg, var(--isc-grad-a), var(--isc-grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

@keyframes isc-pop {
  from { transform: scale(0.75); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}
@keyframes isc-spin {
  to { transform: rotate(360deg); }
}

.isc-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (prefers-reduced-motion: reduce) {
  .isc-home *,
  .isc-home *::before,
  .isc-home *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============ 顶部导航栏「登分」入口 ============ */
.isc-login {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  margin: 0.2rem 0.6rem 0.2rem 0.4rem;
  padding: 0.26rem 0.9rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.12);
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.15s ease;
}
.isc-login:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
  text-decoration: none;
}
.isc-login:focus-visible { outline-color: var(--md-accent-fg-color); }

/* ---------- 「尚未开放」轻提示气泡 ---------- */
.isc-toast {
  position: fixed;
  left: 50%;
  bottom: 2.2rem;
  transform: translate(-50%, 8px);
  z-index: 200;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--md-typeset-color);
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.isc-toast--show { opacity: 1; transform: translate(-50%, 0); }

/* 移动端导航栏空间有限，登分按钮略缩小 */
@media (max-width: 600px) {
  .isc-login { padding: 0.22rem 0.6rem; font-size: 0.74rem; }
}

/* ---------- 毕业去向收集入口 ---------- */
.isc-alumni {
  display: grid;
  align-items: stretch;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
  max-width: 1040px;
  margin: 0 auto;
}
.isc-alumni-card {
  display: block;
  padding: 0.6rem;
  background: var(--isc-card-bg);
  border: 1px solid var(--isc-border);
  border-radius: 14px;
  color: var(--md-typeset-color);
  text-align: center;
  text-decoration: none;
}
.isc-alumni-card:hover { border-color: var(--isc-accent); text-decoration: none; }
.isc-alumni-card img {
  display: block;
  width: 100%;
  aspect-ratio: 8 / 5;
  height: auto;
  object-fit: contain;
  border-radius: 10px;
}
.isc-alumni-card__title { display: block; margin: 0.8rem 0 0.2rem; font-size: 1.05rem; font-weight: 700; color: var(--md-typeset-color); }
@media (max-width: 600px) {
  .isc-alumni { grid-template-columns: 1fr; }
}

/* ============ 首页观前提醒条 ============ */
.isc-notice {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.8rem;
  margin: 1.2rem -1.4rem 0.4rem;
  padding: 0.4rem 1.4rem;
  border-radius: 14px;
  background: rgba(204, 0, 40, 0.08);
  border: 1px solid rgba(204, 0, 40, 0.22);
  color: #A30020;
  font-size: 0.82rem;
  line-height: 1.6;
  text-align: center;
}
.isc-notice__tag {
  flex: none;
  padding: 0.12rem 0.7rem;
  border-radius: 999px;
  background: #CC0028;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
}
.isc-notice p { margin: 0; flex: 1; text-align: center; }

/* ============ 左上角标识：顶部圆点，下滑后变箭头 ============ */
.md-header__button.md-logo .md-logo-arrow { display: none; }
.md-header__button.md-logo .md-logo-dot { display: block; }
html.md-scrolled .md-header__button.md-logo .md-logo-arrow { display: block; }
html.md-scrolled .md-header__button.md-logo .md-logo-dot { display: none; }