:root {
  --bg: #FBF6EF;
  --card: #FFFFFF;
  --text: #3D4756;
  --text-soft: #7C8B9E;
  --text-faint: #B3BECB;

  --blue: #7FB2E5;
  --blue-deep: #5C94DC;
  --blue-soft: #E4F0FC;

  --orange: #FFB27A;
  --orange-deep: #F0945E;
  --orange-soft: #FFEFE3;

  --gold: #F2C879;
  --gold-deep: #E0AC52;
  --gold-soft: #FBF3DE;

  --shadow: 0 6px 20px rgba(90, 130, 180, 0.10);
  --shadow-hover: 0 12px 32px rgba(90, 130, 180, 0.16);
  --radius: 24px;
  --radius-sm: 16px;

  --card-bg: #FFFFFF;
  --border: #E8EDF4;
  --accent: var(--blue-deep);
  --accent-light: var(--blue-soft);
  --text-muted: var(--text-soft);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1B222C;
    --card: #242D3A;
    --text: #E9EEF6;
    --text-soft: #A7B4C4;
    --text-faint: #7B8899;
    --blue-soft: #1E3040;
    --orange-soft: #3A2E22;
    --gold-soft: #3A3220;
    --shadow: 0 6px 20px rgba(0,0,0,0.35);
    --shadow-hover: 0 12px 32px rgba(0,0,0,0.45);
    --card-bg: #242D3A;
    --border: #3A4658;
    --accent-light: #1E3040;
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(circle at 12% 12%, rgba(255, 178, 122, 0.12) 0%, transparent 38%),
    radial-gradient(circle at 88% 70%, rgba(127, 178, 229, 0.12) 0%, transparent 38%),
    radial-gradient(circle at 50% 95%, rgba(242, 200, 121, 0.10) 0%, transparent 42%);
  background-attachment: fixed;
}

/* ===== hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 72px 20px 56px;
  min-height: 46vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.blob { position: absolute; border-radius: 50%; filter: blur(50px); opacity: 0.55; pointer-events: none; }
.blob-1 { width: 300px; height: 300px; background: var(--blue); top: -60px; left: -40px; animation: blobFloat1 8s ease-in-out infinite; }
.blob-2 { width: 280px; height: 280px; background: var(--orange); bottom: -80px; right: -20px; animation: blobFloat2 10s ease-in-out infinite; }
.blob-3 { width: 200px; height: 200px; background: var(--gold); top: 20px; right: 12%; animation: blobFloat3 7s ease-in-out infinite; }

@keyframes blobFloat1 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(30px, 40px); } }
@keyframes blobFloat2 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-40px, -30px); } }
@keyframes blobFloat3 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(20px, -35px); } }

@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.hero-content { position: relative; z-index: 2; animation: fadeUp 0.8s ease-out; }
.hero-content { position: relative; z-index: 2; }
.hero-dots { display: flex; gap: 8px; justify-content: center; margin-bottom: 18px; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-blue { background: var(--blue); }
.dot-orange { background: var(--orange); }
.dot-gold { background: var(--gold); }
.hero-title { font-size: 46px; font-weight: 800; letter-spacing: 2px; }
.hero-subtitle { font-size: 20px; color: var(--text-soft); margin-top: 6px; }
.hero-tag { margin-top: 16px; color: var(--text-soft); font-size: 15px; }

/* ===== 侧边导航 ===== */
.side-nav {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 50;
  background: var(--card);
  padding: 10px 8px;
  border-radius: 32px;
  box-shadow: var(--shadow);
}
.side-nav-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: 20px;
  text-decoration: none; color: var(--text-soft);
  font-size: 14px; transition: all 0.2s;
}
.side-nav-item:hover, .side-nav-item.active { background: var(--blue-soft); color: var(--text); }
.side-nav-dot { width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0; }
.side-nav-dot-blue { background: var(--blue); }
.side-nav-dot-orange { background: var(--orange); }
.side-nav-dot-gold { background: var(--gold); }

/* ===== 移动端抽屉 ===== */
.hamburger {
  display: none; position: fixed; right: 18px; bottom: 22px; z-index: 60;
  width: 54px; height: 54px; border-radius: 50%; border: none;
  background: var(--blue-deep); color: #fff; cursor: pointer; box-shadow: var(--shadow-hover);
}
.hamburger span { display: block; width: 20px; height: 2px; background: #fff; margin: 4px auto; border-radius: 2px; }
.drawer-mask { position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 70; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.drawer-mask.show { opacity: 1; pointer-events: auto; }
.drawer { position: fixed; right: 0; top: 0; height: 100%; width: 260px; z-index: 80; background: var(--card); transform: translateX(100%); transition: transform 0.3s; box-shadow: -8px 0 24px rgba(0,0,0,0.15); }
.drawer.show { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 20px 18px; border-bottom: 1px solid var(--blue-soft); }
.drawer-title { font-weight: 700; }
.drawer-close { border: none; background: none; font-size: 22px; color: var(--text-soft); cursor: pointer; }
.drawer-list { display: flex; flex-direction: column; gap: 4px; padding: 14px; }
.drawer-item { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 14px; text-decoration: none; color: var(--text-soft); }
.drawer-item:hover { background: var(--blue-soft); color: var(--text); }

/* ===== content ===== */
.content { max-width: 1000px; margin: 0 auto; padding: 20px 24px 70px; }
.section { margin-top: 44px; }
.section-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.section-head h2 { font-size: 22px; display: flex; align-items: center; gap: 8px; }
.section-icon { width: 22px; height: 22px; color: var(--blue-deep); flex-shrink: 0; }
.btn-icon { width: 14px; height: 14px; display: inline-block; vertical-align: middle; margin-right: 2px; }
.pin-icon { width: 20px; height: 20px; color: var(--orange-deep); flex-shrink: 0; }
.section-sub { color: var(--text-soft); font-size: 14px; }

/* ===== 卡片网格 ===== */
.card-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.card {
  background: var(--card); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow); transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }

/* 动态卡片 */
.post-tag { display: inline-block; font-size: 12px; padding: 2px 10px; border-radius: 20px; background: var(--blue-soft); color: var(--blue-deep); margin-bottom: 8px; }
.post-content { font-size: 15px; margin: 8px 0 10px; }
.post-meta { display: flex; justify-content: space-between; color: var(--text-faint); font-size: 12px; align-items: center; }
.like-btn { border: none; background: none; cursor: pointer; color: var(--orange-deep); font-size: 13px; display: flex; align-items: center; gap: 2px; }
.like-btn.liked { color: var(--orange-deep); }

/* 评论区域 */
.comment-toggle { border: none; background: none; cursor: pointer; color: var(--text-soft); font-size: 13px; margin-left: 8px; display: flex; align-items: center; gap: 2px; }
.comment-toggle:hover { color: var(--blue-deep); }
.comments-list { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }
.comments-list[hidden] { display: none !important; }
.comment-item { background: var(--bg); border-radius: 12px; padding: 8px 12px; font-size: 13px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px; }
.comment-author { font-weight: 600; color: var(--blue-deep); min-width: 60px; }
.comment-text { flex: 1; color: var(--text); }
.comment-time { color: var(--text-faint); font-size: 11px; }
.comment-form { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; padding: 12px; background: var(--bg); border-radius: 12px; }
.comment-form[hidden] { display: none !important; }
.comment-form-row { display: flex; gap: 8px; align-items: center; }
.comment-name-input { width: 90px; flex-shrink: 0; border: 1px solid var(--blue-soft); border-radius: 12px; padding: 9px 12px; font-size: 13px; background: #fff; color: var(--text); outline: none; font-family: inherit; }
.comment-name-input:focus { border-color: var(--blue-deep); }
.comment-input { flex: 1; border: 1px solid var(--blue-soft); border-radius: 12px; padding: 9px 12px; font-size: 13px; background: #fff; color: var(--text); outline: none; font-family: inherit; min-width: 0; }
.comment-input:focus { border-color: var(--blue-deep); }
.comment-submit { flex-shrink: 0; border: none; background: var(--blue-deep); color: #fff; padding: 9px 18px; border-radius: 12px; cursor: pointer; font-size: 13px; font-weight: 600; }
.comment-submit:hover { opacity: 0.9; }
.comment-secret-row { display: flex; gap: 8px; align-items: center; }
.comment-secret-icon { width: 15px; height: 15px; color: var(--gold, #e0b84c); flex-shrink: 0; }
.comment-secret-input { flex: 1; max-width: 280px; border: 1px dashed var(--gold, #e0b84c); border-radius: 12px; padding: 8px 12px; font-size: 12px; background: #fff; color: var(--text); outline: none; font-family: inherit; }
.comment-secret-input:focus { border-color: var(--gold, #c9a227); border-style: solid; }
.comment-badge { background: #FBF0DA; color: #b8860b; font-size: 11px; font-weight: 600; padding: 1px 6px; border-radius: 8px; flex-shrink: 0; }

/* 同学录卡片 */
.mate-card { text-align: center; padding: 22px 16px; }
.mate-avatar {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; font-weight: 700; color: #fff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.mate-avatar.blue { background: var(--blue-deep); }
.mate-avatar.orange { background: var(--orange-deep); }
.mate-avatar.gold { background: var(--gold-deep); }
.mate-name { font-weight: 700; font-size: 17px; }
.mate-school { color: var(--blue-deep); font-size: 13px; margin-top: 4px; }
.mate-city { color: var(--text-soft); font-size: 12px; margin-top: 2px; }
.mate-note { color: var(--text-soft); font-size: 13px; margin-top: 10px; font-style: italic; }

/* 学校地图 */
.city-map { display: flex; flex-wrap: wrap; gap: 12px; }
.city-chip {
  background: var(--card); box-shadow: var(--shadow); border-radius: var(--radius-sm);
  padding: 14px 18px; display: flex; flex-direction: column; align-items: center; min-width: 120px;
  transition: transform 0.2s; gap: 4px;
}
.city-chip:hover { transform: translateY(-3px); }
.city-name { font-weight: 700; font-size: 16px; }
.city-count { color: var(--text-soft); font-size: 13px; margin-top: 4px; }
.city-schools { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 4px; justify-content: center; }
.city-school-tag { font-size: 11px; background: var(--blue-soft); color: var(--blue-deep); padding: 2px 8px; border-radius: 10px; }

/* 校友联络 */
.connect-list { display: flex; flex-direction: column; gap: 16px; }
.connect-city { background: var(--card); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.connect-city-name { font-weight: 700; font-size: 16px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.connect-city-name::before { content: ''; }
.connect-mates { display: flex; flex-wrap: wrap; gap: 10px; }
.connect-mate { display: flex; align-items: center; gap: 8px; background: var(--bg); border-radius: 14px; padding: 8px 14px 8px 8px; }
.connect-mate-avatar {
  width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.connect-mate-avatar.blue { background: var(--blue-deep); }
.connect-mate-avatar.orange { background: var(--orange-deep); }
.connect-mate-avatar.gold { background: var(--gold-deep); }
.connect-mate-info { display: flex; flex-direction: column; }
.connect-mate-name { font-weight: 600; font-size: 14px; }
.connect-mate-school { color: var(--text-soft); font-size: 12px; }
.connect-mate-status { color: var(--blue-deep); font-size: 12px; margin-top: 2px; max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 近况打卡 */
.mate-status { display: flex; align-items: center; gap: 6px; margin-top: 12px; background: var(--blue-soft); border-radius: 10px; padding: 8px 12px; font-size: 12px; }
.mate-status-empty { background: var(--bg); color: var(--text-soft); justify-content: center; font-style: italic; display: none; }
.status-dot { width: 8px; height: 8px; color: var(--blue-deep); flex-shrink: 0; }
.mate-status-text { color: var(--text); flex: 1; text-align: left; line-height: 1.4; word-break: break-word; }
.mate-status-time { color: var(--text-soft); font-size: 11px; flex-shrink: 0; }
.mate-status-btn {
  margin-top: 14px;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: none; background: var(--blue-deep); color: #fff;
  padding: 8px 20px; border-radius: 24px; cursor: pointer; font-size: 13px; font-family: inherit;
  box-shadow: var(--shadow); transition: background 0.2s, transform 0.2s;
}
.mate-status-btn:hover { transform: translateY(-1px); }
.mate-status-btn .btn-icon { width: 15px; height: 15px; margin-right: 3px; }
.city-status { margin-top: 8px; background: var(--blue-soft); border-radius: 10px; padding: 5px 10px; font-size: 11px; max-width: 100%; text-align: center; }
.city-status-name { color: var(--blue-deep); font-weight: 700; margin-right: 4px; }
.city-status-text { color: var(--text-soft); word-break: break-word; }

/* 吐槽墙 */
.rant-list { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-start; }
.rant-card {
  width: 200px; min-height: 140px; padding: 16px; border-radius: 4px;
  box-shadow: 2px 3px 10px rgba(0,0,0,0.1); position: relative;
  font-size: 14px; line-height: 1.5; word-break: break-word;
  transition: transform 0.2s;
}
.rant-card:hover { transform: scale(1.03) !important; }
.rant-card.c1 { background: #FFF7D6; transform: rotate(-2deg); }
.rant-card.c2 { background: #D6F7FF; transform: rotate(1.5deg); }
.rant-card.c3 { background: #FFE8D6; transform: rotate(-1deg); }
.rant-card.c4 { background: #E8D6FF; transform: rotate(2.5deg); }
.rant-card.c5 { background: #D6FFE8; transform: rotate(-3deg); }
.rant-card.c6 { background: #FFD6E8; transform: rotate(1deg); }
.rant-author { font-size: 12px; color: var(--text-faint); margin-top: 10px; text-align: right; }
.rant-time { font-size: 11px; color: var(--text-faint); margin-top: 4px; text-align: right; }
.rant-content { min-height: 50px; }

/* 留言墙 */
.greet-list { display: flex; flex-direction: column; gap: 12px; }
.greet-card { background: var(--card); border-radius: var(--radius-sm); padding: 16px 18px; box-shadow: var(--shadow); }
.greet-top { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.greet-author { font-weight: 600; font-size: 15px; }
.greet-school { color: var(--text-faint); font-size: 12px; }
.greet-time { margin-left: auto; color: var(--text-faint); font-size: 12px; }
.greet-content { color: var(--text); font-size: 15px; }

/* ===== 发布按钮 / modal ===== */
.btn-publish { border: none; background: var(--blue-deep); color: #fff; padding: 8px 18px; border-radius: 24px; cursor: pointer; font-size: 14px; box-shadow: var(--shadow); transition: 0.2s; }
.btn-publish:hover { transform: translateY(-1px); }

.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 100; display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal-mask[hidden] { display: none !important; }
.modal-card { background: var(--card); border-radius: var(--radius); max-width: 460px; width: 100%; box-shadow: var(--shadow-hover); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--blue-soft); }
.modal-head span { font-weight: 700; }
.modal-close { border: none; background: none; font-size: 24px; color: var(--text-soft); cursor: pointer; }
.modal-body { padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field span { font-size: 13px; color: var(--text-soft); }
.field input, .field textarea, .field select, .verify-row input {
  border: 1px solid var(--blue-soft); border-radius: 12px; padding: 10px 12px; font-size: 15px;
  background: var(--bg); color: var(--text); font-family: inherit; outline: none;
}
.field input:focus, .field textarea:focus, .verify-row input:focus { border-color: var(--blue-deep); }
.verify-row { display: flex; flex-direction: column; gap: 4px; }
.form-err { color: #E0715A; font-size: 12px; }
.btn-submit { border: none; background: var(--blue-deep); color: #fff; padding: 12px; border-radius: 14px; cursor: pointer; font-size: 16px; font-weight: 600; }
.btn-submit:hover { background: var(--blue); }

.img-upload-area { position: relative; border: 2px dashed var(--blue-soft); border-radius: 12px; padding: 14px; text-align: center; cursor: pointer; min-height: 60px; display: flex; align-items: center; justify-content: center; }
.img-upload-btn { color: var(--text-soft); font-size: 14px; }
.img-upload-preview { max-width: 100%; max-height: 200px; border-radius: 10px; margin-bottom: 8px; display: none; }
.img-upload-preview.has-image { display: block; }
.img-remove-btn { position: absolute; top: 6px; right: 6px; background: rgba(0,0,0,0.5); color: #fff; border: none; border-radius: 50%; width: 24px; height: 24px; cursor: pointer; font-size: 14px; display: none; }
.img-remove-btn.show { display: block; }

/* 动态卡片图片 */
.post-image { width: 100%; max-height: 300px; object-fit: cover; border-radius: 14px; margin-bottom: 10px; }

/* toast */
.toast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 12px 22px; border-radius: 30px; font-size: 14px; z-index: 200; box-shadow: var(--shadow-hover); }

.footer { text-align: center; margin-top: 60px; color: var(--text-faint); font-size: 13px; }
.footer-sub { margin-top: 4px; }

/* ===== 投票话题 ===== */
.poll-list { }

.poll-wrapper {
  border: 1.5px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  background: var(--card-bg);
  margin-bottom: 20px;
  transition: box-shadow 0.2s;
}

.poll-wrapper:hover {
  box-shadow: var(--shadow-hover);
}

.poll-tabs {
  display: flex;
  gap: 0;
  background: var(--bg);
  border-bottom: 1.5px solid var(--border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.poll-tab {
  flex: 1;
  flex-shrink: 0;
  padding: 12px 20px;
  background: transparent;
  border: none;
  border-right: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
  line-height: 1.4;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-soft);
  white-space: nowrap;
}

.poll-tab:last-child {
  border-right: none;
}

.poll-tab:hover {
  background: var(--accent-light);
  color: var(--text);
}

.poll-tab.active {
  background: var(--card-bg);
  color: var(--accent);
  position: relative;
}

.poll-tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
}

.poll-card {
  background: var(--card-bg);
  padding: 22px 26px;
}

.poll-card:hover {
  /* wrapper handles hover */
}



.poll-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
}

.poll-icon { color: var(--accent); font-size: 0; line-height: 0; flex-shrink: 0; }
.poll-icon .section-icon { width: 28px; height: 28px; }

.poll-question { font-size: 17px; font-weight: 600; color: var(--text); line-height: 1.4; }

.poll-meta { font-size: 12px; color: var(--text-faint); margin-top: 4px; }

.poll-options { display: flex; flex-direction: column; gap: 10px; }

.poll-option {
  position: relative;
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  overflow: hidden;
}

.poll-option:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}

.poll-option.voted {
  border-color: var(--accent);
  background: var(--accent-light);
}

.poll-option-bar {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: var(--accent-light);
  border-radius: 12px;
  transition: width 0.5s ease;
  z-index: 0;
}

.poll-option-text {
  position: relative;
  z-index: 1;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  flex: 1;
}

.poll-option-votes {
  position: relative;
  z-index: 1;
  font-size: 13px;
  color: var(--text-muted);
  margin-left: 10px;
  white-space: nowrap;
}

.poll-option-pct {
  position: relative;
  z-index: 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-left: 6px;
  min-width: 40px;
  text-align: right;
}




.poll-total {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-faint);
  text-align: right;
}

/* 投票 modal 专属 */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.modal-overlay[hidden] { display: none !important; }

.modal-content {
  background: var(--card);
  border-radius: var(--radius);
  max-width: 500px;
  width: 100%;
  box-shadow: var(--shadow-hover);
  max-height: 90vh;
  overflow-y: auto;
}
.modal-content .modal-head {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-content .modal-head h3 { margin: 0; font-size: 18px; }
.modal-content .modal-body,
.modal-content form {
  padding: 20px 24px 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}
.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-soft);
}
.form-group input[type="text"],
.form-group input[type="password"] {
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus { border-color: var(--accent); }

.btn-secondary {
  border: 1.5px solid var(--border);
  background: var(--bg);
  color: var(--text-soft);
  padding: 8px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
  align-self: flex-start;
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

#pollOptions { display: flex; flex-direction: column; gap: 8px; margin-bottom: 8px; }

.poll-option-input {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text);
  transition: border-color 0.2s;
}

.poll-option-input:focus { outline: none; border-color: var(--accent); }

/* ===== 届别筛选（历届浏览）：按钮 + 可收起多选选项卡面板 ===== */
.global-grade-bar {
  margin-bottom: 24px;
}
/* 顶部按钮：不显眼，靠左放，金色描边小胶囊 */
.grade-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1.5px solid var(--gold-soft);
  background: var(--card);
  color: var(--text-soft);
  padding: 8px 15px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  transition: all 0.2s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.grade-toggle-btn:hover { border-color: var(--gold-deep); color: var(--gold-deep); }
.grade-toggle-btn .section-icon { width: 18px; height: 18px; color: var(--gold-deep); }
.grade-toggle-btn .chev {
  width: 15px; height: 15px; color: var(--text-faint);
  transition: transform 0.2s;
}
.grade-toggle-btn.open .chev { transform: rotate(180deg); }
/* 选项卡面板：展开才占用空间 */
.grade-panel {
  margin-top: 12px;
  background: var(--card);
  border: 1.5px solid var(--gold-soft);
  border-radius: 16px;
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.grade-panel-title { font-size: 15px; font-weight: 800; color: var(--text); margin-bottom: 3px; }
.grade-panel-hint { font-size: 12px; color: var(--text-faint); margin-bottom: 12px; }
.grade-panel .grade-bar { margin-bottom: 0; }
.grade-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.grade-chip {
  border: 1.5px solid var(--blue-soft);
  background: var(--card);
  color: var(--text-soft);
  padding: 7px 16px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.grade-chip:hover { border-color: var(--gold-deep); color: var(--gold-deep); transform: translateY(-1px); }
.grade-chip.active { background: var(--gold-deep); border-color: var(--gold-deep); color: #fff; box-shadow: var(--shadow); }
.mate-grade-badge {
  display: inline-block;
  background: var(--gold-soft);
  color: var(--gold-deep);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  margin: 2px 0 8px;
}

/* ===== 动态标签聚合流 ===== */
.tag-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.tag-chip {
  border: 1.5px solid var(--blue-soft);
  background: var(--card);
  color: var(--text-soft);
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tag-chip:hover { border-color: var(--blue-deep); color: var(--blue-deep); transform: translateY(-1px); }
.tag-chip.active { background: var(--blue-deep); border-color: var(--blue-deep); color: #fff; box-shadow: var(--shadow); }
.tag-count { font-size: 11px; opacity: 0.75; }

/* ===== 一键近况表情打卡 ===== */
.quick-status-row { display: flex; justify-content: center; gap: 6px; margin-top: 12px; }
.quick-status-btn {
  border: 1.5px solid var(--blue-soft);
  background: var(--card);
  font-size: 17px;
  line-height: 1;
  padding: 6px 8px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.18s;
}
.quick-status-btn:hover { transform: translateY(-2px) scale(1.08); border-color: var(--blue-deep); background: var(--blue-soft); box-shadow: var(--shadow); }

/* ===== 本月活跃榜 ===== */
.rank-block { margin-bottom: 18px; }
.rank-title { font-size: 15px; font-weight: 700; color: var(--text-soft); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.rank-title::before { content: ''; width: 4px; height: 16px; border-radius: 2px; background: var(--gold-deep); }
.rank-list { display: flex; flex-direction: column; gap: 8px; }
.rank-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card);
  border-radius: 14px;
  padding: 10px 16px;
  box-shadow: var(--shadow);
  font-size: 14px;
}
.rank-top { background: linear-gradient(135deg, var(--gold-soft), var(--card)); }
.rank-medal { font-size: 18px; width: 28px; text-align: center; flex-shrink: 0; }
.rank-name { font-weight: 700; color: var(--text); min-width: 70px; }
.rank-detail { flex: 1; color: var(--text-soft); font-size: 12px; }
.rank-score { color: var(--gold-deep); font-weight: 700; font-size: 13px; flex-shrink: 0; }
.rank-empty { color: var(--text-faint); font-size: 13px; text-align: center; padding: 14px 0; background: var(--card); border-radius: 14px; box-shadow: var(--shadow); }

/* ===== 响应式 ===== */
@media (max-width: 767px) {
  .side-nav { display: none; }
  .hamburger { display: block; }
  .hero-title { font-size: 34px; }
  .hero { padding: 52px 16px 40px; }
}