/* 任务派 · 蓝白简约风 */
:root {
  --blue: #2f6fed;
  --blue-dark: #1e56c8;
  --blue-light: #eaf1fe;
  --blue-ghost: #f4f8ff;
  --text: #1f2d3d;
  --text-sub: #6b7a90;
  --line: #e6ecf5;
  --bg: #f6f9fd;
  --white: #ffffff;
  --danger: #e05252;
  --ok: #2fa36b;
  --warn: #d99a26;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(47, 111, 237, 0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
/* 移动端触控体验：去除点击高亮、消除点击延迟、滚动顺畅 */
a, button, .btn, input, select, textarea, label { -webkit-tap-highlight-color: transparent; }
.btn, .main-nav a, .link-btn, .section-card, .admin-tabs a { touch-action: manipulation; }
/* 导航响应式显隐：桌面隐藏移动专属项，手机隐藏桌面专属项 */
.nav-mobile-only { display: none; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.6;
  min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; width: 100%; }
.main-content { flex: 1; padding-top: 24px; padding-bottom: 48px; }

/* 顶栏 */
.site-header { background: var(--white); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; gap: 28px; height: 60px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; color: var(--text); }
.logo-mark { width: 34px; height: 34px; border-radius: 9px; background: linear-gradient(135deg, var(--blue), #5b8ff5); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 17px; }
.logo-text { color: var(--text); }
.main-nav { display: flex; gap: 6px; flex: 1; }
.main-nav a { padding: 6px 14px; border-radius: 8px; color: var(--text-sub); font-weight: 500; }
.main-nav a.active { background: var(--blue-light); color: var(--blue); }
.main-nav a:hover { color: var(--blue); }
.header-user { display: flex; align-items: center; gap: 14px; }
.user-chip { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; }
.inline-form { display: inline; }
.link-btn { background: none; border: none; color: var(--text-sub); cursor: pointer; font-size: 15px; }
.link-btn:hover { color: var(--blue); }
.verify-link { color: var(--warn) !important; }

/* 公告 */
.notice-bar { margin-top: 14px; background: var(--blue-ghost); border: 1px solid var(--blue-light); border-radius: var(--radius); padding: 10px 16px; color: var(--text-sub); font-size: 14px; display: flex; gap: 10px; align-items: baseline; }
.notice-tag { color: var(--blue); font-weight: 700; flex-shrink: 0; }

/* Hero */
.hero { padding: 44px 0 30px; }
.hero h1 { font-size: 32px; margin-bottom: 10px; }
.hero-sub { color: var(--text-sub); font-size: 17px; margin-bottom: 22px; }
.hero-actions { display: flex; gap: 14px; }
.visitor-tip { margin-top: 16px; color: var(--warn); font-size: 14px; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: none; cursor: pointer; border-radius: 9px; padding: 9px 20px; font-size: 15px; font-weight: 500; transition: all .15s; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); color: #fff; }
.btn-primary:disabled { background: #a9c2f2; cursor: not-allowed; }
.btn-ghost { background: var(--white); color: var(--blue); border: 1px solid var(--blue-light); }
.btn-ghost:hover { background: var(--blue-ghost); color: var(--blue-dark); }
.btn-danger-ghost { background: var(--white); color: var(--danger); border: 1px solid #f3d7d7; }
.btn-danger-ghost:hover { background: #fdf3f3; color: var(--danger); }
.btn-lg { padding: 12px 28px; font-size: 16px; }
.btn-sm { padding: 4px 12px; font-size: 13px; border-radius: 7px; }
.btn-block { width: 100%; }

/* 板块卡片 */
.section-block { margin-bottom: 34px; }
.section-title { font-size: 20px; margin-bottom: 14px; }
.section-cards { display: flex; gap: 12px; flex-wrap: wrap; }
.section-card { display: inline-flex; align-items: center; gap: 8px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 18px; color: var(--text); box-shadow: var(--shadow); transition: all .15s; }
.section-card:hover { border-color: var(--blue); transform: translateY(-2px); }
.section-card.active { background: var(--blue); color: #fff; border-color: var(--blue); }
.section-card.active .sc-icon { color: #fff; }
.sc-icon { color: var(--blue); }
.sc-name { font-weight: 600; }

/* 列表头 */
.list-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; gap: 16px; flex-wrap: wrap; }
.list-head .section-title { margin-bottom: 0; }
.search-form { display: flex; gap: 8px; }
.search-form input[type=text] { border: 1px solid var(--line); border-radius: 9px; padding: 8px 14px; width: 220px; outline: none; }
.search-form input[type=text]:focus { border-color: var(--blue); }

/* 任务卡片 */
.task-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.task-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: block; color: var(--text); box-shadow: var(--shadow); transition: all .15s; }
.task-card:hover { border-color: var(--blue); transform: translateY(-2px); color: var(--text); }
.task-top { display: flex; gap: 8px; margin-bottom: 10px; }
.task-title { font-size: 17px; margin-bottom: 6px; }
.task-desc { color: var(--text-sub); font-size: 14px; margin-bottom: 14px; min-height: 40px; }
.task-bottom { display: flex; justify-content: space-between; align-items: baseline; }
.reward { color: var(--blue); font-weight: 700; font-size: 18px; }
.meta { color: var(--text-sub); font-size: 13px; }

/* 标签 */
.tag { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; }
.tag-section { background: var(--blue-light); color: var(--blue); }
.tag-open { background: #e7f7ef; color: var(--ok); }
.tag-progress { background: #fff5e5; color: var(--warn); }
.tag-done { background: #eef0f4; color: var(--text-sub); }
.tag-no { background: #fdeeee; color: var(--danger); }
.tag-wait { background: var(--blue-light); color: var(--blue); }
.tag-escrow { background: #ece9fb; color: #6a4fd8; }

/* 提示框 */
.alert { border-radius: 10px; padding: 12px 16px; margin-bottom: 16px; font-size: 14px; }
.alert-info { background: var(--blue-ghost); border: 1px solid var(--blue-light); color: var(--blue-dark); }
.alert-error { background: #fdf1f1; border: 1px solid #f6d9d9; color: var(--danger); }
.alert-ok { background: #e9f8f0; border: 1px solid #cdeedd; color: var(--ok); }
.empty, .empty-sm { color: var(--text-sub); padding: 22px 0; text-align: center; }
.empty-sm { text-align: left; padding: 8px 0; }

/* 表单卡片 */
.auth-card { background: var(--white); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); padding: 32px; max-width: 460px; margin: 20px auto; }
.auth-card.wide { max-width: 640px; }
.auth-card h2 { margin-bottom: 18px; }
.auth-foot { margin-top: 16px; color: var(--text-sub); text-align: center; }
.auth-note { margin-top: 14px; color: var(--text-sub); font-size: 13.5px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 9px; padding: 10px 14px; font-size: 15px; outline: none; font-family: inherit; background: #fff;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(47,111,237,.1); }
.field-row { display: flex; gap: 14px; }
.field-row .field { flex: 1; }
.req { color: var(--danger); }
.checkbox-field .check { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; cursor: pointer; }
.checkbox-field input { width: auto; margin-top: 4px; }
.field input:disabled { background: #f3f6fb; color: var(--text-sub); }

/* 详情页 */
.detail-card { background: var(--white); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); padding: 28px; margin-bottom: 20px; }
.detail-head h1 { font-size: 24px; margin: 12px 0 10px; }
.detail-head .tag { margin-right: 6px; margin-bottom: 4px; }
.detail-meta { display: flex; gap: 18px; flex-wrap: wrap; color: var(--text-sub); font-size: 13.5px; }
.reward-banner { background: linear-gradient(135deg, var(--blue), #5b8ff5); color: #fff; border-radius: 12px; padding: 16px 22px; display: flex; align-items: baseline; gap: 14px; margin: 18px 0; }
.reward-label { font-size: 14px; opacity: .9; }
.reward-num { font-size: 26px; font-weight: 800; }
.detail-body h3, .detail-card h3 { margin-bottom: 10px; font-size: 17px; }
.detail-body { margin-bottom: 18px; }
.prewrap { white-space: pre-wrap; color: var(--text); }
.detail-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.take-form { display: flex; gap: 10px; flex: 1; }
.take-note { flex: 1; border: 1px solid var(--line); border-radius: 9px; padding: 10px 14px; outline: none; }
.take-note:focus { border-color: var(--blue); }

/* 表格 */
.panel { background: var(--white); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); padding: 24px; margin-bottom: 20px; overflow-x: auto; }
.panel-title { font-size: 17px; margin-bottom: 14px; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; color: var(--text-sub); font-weight: 600; padding: 10px 12px; border-bottom: 2px solid var(--line); white-space: nowrap; }
.table td { padding: 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table tr:hover td { background: var(--blue-ghost); }
.ops { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.small-note { font-size: 12.5px; color: var(--text-sub); margin-top: 4px; }
.text-danger { color: var(--danger); }
.mini-input { width: 110px; border: 1px solid var(--line); border-radius: 7px; padding: 4px 8px; font-size: 13px; outline: none; }
.mini-input:focus { border-color: var(--blue); }
.review-reject { display: inline-flex; gap: 6px; align-items: center; }

/* 后台 */
.admin-tabs { display: flex; gap: 6px; margin-bottom: 20px; flex-wrap: wrap; }
.admin-tabs a { padding: 9px 18px; border-radius: 9px; background: var(--white); border: 1px solid var(--line); color: var(--text-sub); font-weight: 500; }
.admin-tabs a.active { background: var(--blue); color: #fff; border-color: var(--blue); }
.admin-tabs a:hover:not(.active) { color: var(--blue); border-color: var(--blue-light); }
.page-title { font-size: 22px; margin-bottom: 18px; }
.filter-links { display: flex; gap: 10px; flex-wrap: wrap; }
.filter-links a { color: var(--text-sub); font-size: 13.5px; }
.filter-links a:hover { color: var(--blue); }
.inline-grid-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.inline-grid-form input { border: 1px solid var(--line); border-radius: 8px; padding: 7px 12px; font-size: 14px; outline: none; }
.inline-grid-form input:focus { border-color: var(--blue); }

/* 支付页 */
.pay-summary { background: var(--blue-ghost); border-radius: 10px; padding: 16px 18px; margin-bottom: 18px; }
.pay-summary p { margin-bottom: 6px; }
.pay-amount { color: var(--blue); font-size: 20px; font-weight: 800; }

/* 提示页 */
.tip-card { background: var(--white); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); padding: 40px; max-width: 480px; margin: 40px auto; text-align: center; }
.tip-card h2 { margin-bottom: 12px; }
.tip-card p { color: var(--text-sub); margin-bottom: 22px; }

/* 徽章 */
.badge { padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-ok { background: #e7f7ef; color: var(--ok); }
.badge-wait { background: #fff5e5; color: var(--warn); }
.badge-no { background: #fdeeee; color: var(--danger); }

/* 高校认证徽标与截图缩略图 */
.uni-badge {
  display: inline-block; background: var(--blue-light); color: var(--blue);
  border-radius: 999px; padding: 1px 9px; font-size: 12px; font-weight: 700;
  margin-right: 7px; white-space: nowrap; vertical-align: 1px;
}
.uni-thumb { width: 72px; height: 54px; object-fit: cover; border-radius: 7px; border: 1px solid var(--line); display: block; }
.uni-thumb:hover { border-color: var(--blue); }

/* 页脚 */
.site-footer { border-top: 1px solid var(--line); background: var(--white); padding: 18px 0; text-align: center; color: var(--text-sub); font-size: 13.5px; margin-top: auto; }

/* ============================================================
   移动端适配（响应式：内容结构与信息层级与桌面完全一致）
   ============================================================ */

/* 平板 / 手机横屏 */
@media (max-width: 860px) {
  .container { padding: 0 16px; }
  .task-grid { grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); }
  .hero h1 { font-size: 27px; }
}

/* 手机竖屏 */
@media (max-width: 720px) {
  body { font-size: 14.5px; }

  /* --- 顶栏：两行布局，导航横向滑动 --- */
  .header-inner { flex-wrap: wrap; height: auto; gap: 10px; padding: 10px 0 0; }
  .logo { flex: 1; min-width: 0; }
  .logo-text { font-size: 17px; }
  .header-user { margin-left: auto; gap: 10px; font-size: 13.5px; flex-wrap: wrap; justify-content: flex-end; row-gap: 2px; }
  .header-user .nav-desktop-only { display: none; }
  .main-nav {
    order: 3; flex: 0 0 100%; width: 100%; gap: 4px;
    overflow-x: auto; -webkit-overflow-scrolling: touch; scroll-snap-type: x proximity;
    padding-bottom: 8px; scrollbar-width: none;
  }
  .main-nav::-webkit-scrollbar { display: none; }
  .main-nav a { white-space: nowrap; flex: 0 0 auto; scroll-snap-align: start; padding: 10px 14px; }
  .main-nav .nav-mobile-only { display: inline-block; }

  /* --- 首页 hero：按钮纵排全宽，拇指易点 --- */
  .hero { padding: 26px 0 20px; }
  .hero h1 { font-size: 23px; }
  .hero-sub { font-size: 15px; margin-bottom: 18px; }
  .hero-actions { flex-direction: column; gap: 10px; }
  .hero-actions .btn { width: 100%; min-height: 48px; font-size: 16px; }
  .visitor-tip { font-size: 13px; }

  /* --- 板块胶囊：横向滑动 --- */
  .section-cards {
    flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch;
    padding-bottom: 6px; margin: 0 -16px; padding-left: 16px; padding-right: 16px;
    scrollbar-width: none;
  }
  .section-cards::-webkit-scrollbar { display: none; }
  .section-card { flex: 0 0 auto; padding: 11px 16px; }

  /* --- 搜索与列表头 --- */
  .list-head { flex-direction: column; align-items: stretch; gap: 10px; }
  .list-head .section-title { margin-bottom: 0; }
  .search-form input[type=text] { flex: 1; width: auto; font-size: 16px; }
  .search-form .btn { min-width: 64px; }

  /* --- 任务卡片：单列 --- */
  .task-grid { grid-template-columns: 1fr; gap: 12px; }
  .task-card { padding: 16px; }
  .task-title { font-size: 16.5px; }
  .task-desc { min-height: 0; font-size: 13.5px; }
  .reward { font-size: 16.5px; }

  /* --- 卡片容器与表单 --- */
  .auth-card, .detail-card, .panel, .tip-card { padding: 20px 16px; border-radius: 12px; }
  .auth-card { margin: 14px auto; }
  .field input, .field select, .field textarea { font-size: 16px; padding: 11px 14px; } /* ≥16px 防 iOS 聚焦自动放大 */
  .field-row { flex-direction: column; gap: 0; }
  .field { margin-bottom: 14px; }
  .checkbox-field .check { padding: 4px 0; }

  /* --- 按钮：44px 触控目标 --- */
  .btn { min-height: 44px; }
  .btn-sm { min-height: 34px; padding: 6px 12px; }
  .btn-lg { min-height: 48px; }

  /* --- 任务详情 --- */
  .detail-head h1 { font-size: 20px; }
  .detail-meta { gap: 8px 16px; font-size: 13px; }
  .reward-banner { padding: 14px 18px; }
  .reward-num { font-size: 22px; }
  .detail-actions { flex-direction: column; align-items: stretch; gap: 10px; }
  .detail-actions .btn { width: 100%; }
  .detail-actions .inline-form { display: block; }
  .detail-actions .inline-form .btn { width: 100%; }
  .take-form { flex-direction: column; }
  .take-note { width: 100%; font-size: 16px; padding: 12px 14px; }
  .take-form .btn { width: 100%; }

  /* --- 表格：容器内横向滑动，不破坏信息结构 --- */
  .panel { overflow-x: auto; }
  .table { min-width: 620px; font-size: 13.5px; }
  .table td, .table th { padding: 10px; }
  .ops { flex-direction: column; align-items: stretch; gap: 6px; min-width: 92px; }
  .ops .inline-form { display: block; }
  .ops .inline-form .btn { width: 100%; }
  .ops .review-reject { flex-direction: column; align-items: stretch; }
  .ops .mini-input { width: 100%; }

  /* --- 后台 --- */
  .admin-tabs {
    flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch;
    padding-bottom: 4px; scrollbar-width: none; margin: 0 -16px; padding-left: 16px; padding-right: 16px;
  }
  .admin-tabs::-webkit-scrollbar { display: none; }
  .admin-tabs a { white-space: nowrap; flex: 0 0 auto; }
  .inline-grid-form { flex-direction: column; align-items: stretch; }
  .inline-grid-form input { font-size: 16px; }

  /* --- 其他 --- */
  .notice-bar { font-size: 13px; }
  .alert { font-size: 13.5px; }
  .uni-badge { margin-right: 5px; }
  .pay-summary { padding: 14px 16px; }
  .empty { padding: 26px 0; }
}

/* 小屏手机 */
@media (max-width: 480px) {
  /* 用户区过挤：隐藏顶栏徽标（个人中心页与任务卡上仍可见） */
  .user-chip .uni-badge, .user-chip .badge { display: none; }
  .header-user { gap: 8px; }
}

@media (max-width: 400px) {
  .hero h1 { font-size: 21px; }
  .logo-text { font-size: 16px; }
  .section-card { padding: 10px 13px; }
  .sc-name { font-size: 14px; }
  .task-title { font-size: 16px; }
  .detail-head h1 { font-size: 18px; }
  .auth-card, .detail-card, .panel { padding: 16px 13px; }
}

/* 手机横屏矮屏：压缩纵向留白 */
@media (max-height: 480px) and (orientation: landscape) {
  .hero { padding: 14px 0 10px; }
  .hero-actions { flex-direction: row; }
  .hero-actions .btn { width: auto; }
}