/* ====== 广西专升本 · 门户样式 v3 ====== */

/* === 1. 极光氛围背景 === */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 20% 15%, rgba(99,102,241,0.06) 0%, transparent 55%),
    radial-gradient(ellipse 60% 70% at 80% 55%, rgba(139,92,246,0.04) 0%, transparent 55%),
    radial-gradient(ellipse 50% 60% at 50% 85%, rgba(59,130,246,0.04) 0%, transparent 50%);
}

/* === 2. 噪点纹理 === */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.015;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* === 顶部导航 — 毛玻璃 === */
.top-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.78);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 0.5px solid rgba(0,0,0,0.06);
  padding: 0 16px;
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  height: 52px;
}
.nav-logo {
  font-family: 'Noto Serif SC', 'STSong', serif;
  font-size: 18px; font-weight: 700; color: #1e293b;
  text-decoration: none; letter-spacing: 0.3px;
}
.nav-links { display: flex; gap: 2px; }
.nav-link {
  padding: 7px 14px; border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 14px; font-weight: 500; color: #64748b;
  text-decoration: none; transition: all 0.2s;
}
.nav-link:hover { color: #334155; background: rgba(0,0,0,0.04); }
.nav-link.active { color: #1e293b; background: rgba(0,0,0,0.06); font-weight: 600; }
.nav-cta { background: #1e293b; color: #fff !important; margin-left: 6px; font-weight: 600; }
.nav-cta:hover { background: #334155 !important; }

/* === 主内容区 === */
.portal-main { max-width: 1100px; margin: 0 auto; padding: 0 16px 60px; }

/* === Hero 横幅 === */
.hero-banner {
  background: linear-gradient(160deg, #0f172a 0%, #1e293b 40%, #312e81 100%);
  border-radius: 24px; padding: 44px 28px; text-align: center;
  color: #fff; margin: 20px 0 40px;
  position: relative; overflow: hidden;
}
.hero-banner::before {
  content: ''; position: absolute;
  top: -50%; right: -30%; width: 70%; height: 200%;
  background: radial-gradient(ellipse, rgba(99,102,241,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-banner::after {
  content: ''; position: absolute;
  bottom: -40%; left: -15%; width: 60%; height: 160%;
  background: radial-gradient(ellipse, rgba(139,92,246,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-banner h1 {
  font-family: 'Noto Serif SC', 'STSong', serif;
  font-size: 36px; font-weight: 700; margin: 0 0 10px;
  letter-spacing: -0.5px; position: relative; z-index: 1;
}
.hero-subtitle {
  font-family: 'Inter', sans-serif;
  font-size: 15px; font-weight: 300; opacity: 0.7;
  margin: 0 0 28px; position: relative; z-index: 1;
}
.hero-actions { display:flex; justify-content:center; flex-wrap:wrap; gap:10px; margin:-12px 0 22px; position:relative; z-index:2; }
.hero-actions button,.hero-actions a { min-height:44px; padding:0 18px; border-radius:6px; font:700 14px/44px 'Inter',sans-serif; text-decoration:none; cursor:pointer; }
.hero-actions button { border:0; background:#fff; color:#172554; }
.hero-actions a { border:1px solid #93c5fd; color:#fff; background:transparent; }
.hero-actions [hidden] { display:none; }

.onboarding-dialog { width:min(560px,calc(100vw - 24px)); max-height:calc(100dvh - 24px); padding:0; border:0; border-radius:8px; color:#1e293b; box-shadow:0 24px 70px rgba(15,23,42,.26); }
.onboarding-dialog::backdrop { background:rgba(15,23,42,.55); }
.onboarding-dialog form { padding:24px; }
.onboarding-head { display:flex; align-items:flex-start; justify-content:space-between; gap:16px; }
.onboarding-head small { color:#2563eb; font-size:10px; font-weight:800; letter-spacing:.12em; }
.onboarding-head h2 { margin:5px 0; font-size:22px; letter-spacing:0; }
.onboarding-head p { margin:0; color:#64748b; font-size:13px; line-height:1.6; }
.onboarding-head button { width:40px; height:40px; flex:0 0 40px; border:1px solid #cbd5e1; border-radius:6px; background:#fff; color:#64748b; font-size:22px; cursor:pointer; }
.onboarding-dialog form>label { display:block; margin-top:18px; color:#334155; font-size:13px; font-weight:700; }
.onboarding-dialog select { width:100%; height:44px; margin-top:6px; padding:0 10px; border:1px solid #cbd5e1; border-radius:6px; background:#fff; font-size:15px; }
.onboarding-dialog fieldset { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin:18px 0 0; padding:0; border:0; }
.onboarding-dialog legend { margin-bottom:7px; color:#334155; font-size:13px; font-weight:700; }
.onboarding-dialog fieldset label { position:relative; }
.onboarding-dialog fieldset input { position:absolute; opacity:0; }
.onboarding-dialog fieldset span { display:grid; place-items:center; min-height:44px; border:1px solid #cbd5e1; border-radius:6px; color:#475569; cursor:pointer; }
.onboarding-dialog fieldset input:checked+span { border-color:#2563eb; background:#eff6ff; color:#1d4ed8; font-weight:700; }
.onboarding-dialog fieldset input:focus-visible+span { outline:3px solid #93c5fd; outline-offset:2px; }
.onboarding-notice { margin:16px 0 0; padding:10px 12px; border-left:3px solid #f59e0b; background:#fffbeb; color:#92400e; font-size:12px; line-height:1.6; }
.onboarding-submit { width:100%; min-height:46px; margin-top:16px; border:0; border-radius:6px; background:#155eef; color:#fff; font-size:15px; font-weight:800; cursor:pointer; }

/* === 倒计时 === */
.countdown-card {
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-radius: 18px; border: 0.5px solid rgba(255,255,255,0.1);
  padding: 22px 16px; display: inline-block;
  position: relative; z-index: 1;
}
.countdown-label {
  font-family: 'Inter', sans-serif;
  font-size: 13px; font-weight: 500; opacity: 0.55;
  margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.5px;
}
.countdown-digits { display: flex; justify-content: center; gap: 14px; }
.cd-item { display: flex; flex-direction: column; align-items: center; min-width: 56px; }
.cd-num {
  font-family: 'Inter', sans-serif;
  font-size: 38px; font-weight: 700; font-variant-numeric: tabular-nums;
  background: rgba(255,255,255,0.08);
  border-radius: 12px; padding: 6px 10px; line-height: 1.1; letter-spacing: 1px;
}
.cd-unit {
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 500; margin-top: 5px; opacity: 0.45;
}
.countdown-hint {
  font-family: 'Inter', sans-serif;
  font-size: 12px; opacity: 0.35; margin-top: 12px;
}

/* === 章节标题 === */
.section-title {
  font-family: 'Noto Serif SC', 'STSong', serif;
  font-size: 21px; font-weight: 700; color: #1e293b;
  margin: 44px 0 18px; letter-spacing: -0.3px;
}

/* === 3. 入场动画 === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.subject-card { animation: fadeInUp 0.6s cubic-bezier(0.25,0.46,0.45,0.94) both; }
.subject-card:nth-child(1) { animation-delay: .05s; }
.subject-card:nth-child(2) { animation-delay: .10s; }
.subject-card:nth-child(3) { animation-delay: .15s; }
.subject-card:nth-child(4) { animation-delay: .20s; }
.subject-card:nth-child(5) { animation-delay: .25s; }
.subject-card:nth-child(6) { animation-delay: .30s; }
.subject-card:nth-child(7) { animation-delay: .35s; }
.subject-card:nth-child(8) { animation-delay: .40s; }

/* === 5. 滚动揭示 === */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.25,0.46,0.45,0.94),
              transform 0.7s cubic-bezier(0.25,0.46,0.45,0.94);
}
.reveal.visible {
  opacity: 1; transform: translateY(0);
}

/* === 科目卡片 === */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}
.subject-card {
  display: block; padding: 26px 20px; border-radius: 18px;
  text-decoration: none; color: #fff;
  transition: transform 0.5s cubic-bezier(0.25,0.46,0.45,0.94),
              box-shadow 0.35s cubic-bezier(0.25,0.46,0.45,0.94);
  position: relative; overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,.05), 0 4px 12px rgba(0,0,0,.04);
}
.subject-card::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.12) 0%, transparent 55%);
  pointer-events: none; border-radius: 18px;
}
.subject-card:hover {
  transform: rotateX(calc((var(--my, 0) - 0.5) * -5deg))
             rotateY(calc((var(--mx, 0) - 0.5) * 7deg))
             translateY(-3px);
  box-shadow: 0 3px 8px rgba(0,0,0,.06), 0 8px 24px rgba(0,0,0,.1);
}
.subject-card:active { transform: translateY(-1px) scale(0.985); }

.subject-card.math       { background: linear-gradient(145deg, #334155, #1e293b); }
.subject-card.chinese    { background: linear-gradient(145deg, #92400e, #78350f); }
.subject-card.english    { background: linear-gradient(145deg, #065f46, #064e3b); }
.subject-card.psychology { background: linear-gradient(145deg, #831843, #701a3b); }
.subject-card.education  { background: linear-gradient(145deg, #4c1d95, #3b0f80); }
.subject-card.politics   { background: linear-gradient(145deg, #991b1b, #7f1d1d); }
.subject-card.computer   { background: linear-gradient(145deg, #155e75, #134e60); }
.subject-card.management { background: linear-gradient(145deg, #9a3412, #7c2d12); }

.sc-icon    { font-size: 34px; margin-bottom: 10px; position: relative; z-index: 1; }
.sc-name    { font-family: 'Inter', sans-serif; font-size: 18px; font-weight: 700; margin-bottom: 7px; letter-spacing: -0.2px; position: relative; z-index: 1; }
.sc-meta    { font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 400; opacity: 0.7; margin-bottom: 10px; line-height: 1.5; position: relative; z-index: 1; }
.sc-arrow   { font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 600; opacity: 0.8; display: inline-flex; align-items: center; gap: 4px; position: relative; z-index: 1; transition: gap 0.2s; }
.subject-card:hover .sc-arrow { gap: 8px; }

/* === 通知列表 === */
.notice-list { display: flex; flex-direction: column; gap: 6px; }
.notice-item {
  display: flex; align-items: center; padding: 15px 18px;
  border-radius: 14px; text-decoration: none; color: #334155;
  background: #f8fafc; border: 0.5px solid rgba(0,0,0,0.04);
  transition: all 0.2s; gap: 12px;
}
.notice-item:hover { background: #f1f5f9; border-color: rgba(0,0,0,0.08); transform: translateX(2px); }
.notice-date { font-family: 'Inter', sans-serif; font-size: 12px; font-weight: 500; color: #94a3b8; white-space: nowrap; }
.notice-title { flex: 1; font-family: 'Inter', sans-serif; font-size: 15px; font-weight: 500; }

.account-button { border:1px solid #cbd5e1; background:#fff; color:#334155; min-height:34px; padding:0 12px; font:600 13px/1 Inter,sans-serif; cursor:pointer; }
.account-dialog { --wechat:#07a956;--wechat-dark:#08783f;--wechat-soft:#eefbf3;--wechat-line:#bce9ce;width:min(440px,calc(100vw - 24px));max-height:calc(100dvh - 24px);overflow:auto;border:0;border-radius:10px;padding:24px;color:#1e293b;box-shadow:0 24px 70px rgba(15,23,42,.24); }
.account-dialog::backdrop { background:rgba(15,23,42,.48); }
.account-dialog h2 { margin:0 0 8px; font-size:20px; }
.account-dialog p { color:#64748b; font-size:14px; line-height:1.6; }
.account-dialog label { display:block; margin-top:14px; color:#475569; font-size:13px; font-weight:600; }
.account-dialog input { display:block; width:100%; height:42px; margin-top:6px; border:1px solid #cbd5e1; border-radius:6px; padding:0 11px; font-size:15px; }
.account-close { position:absolute; top:10px; right:12px; border:0; background:transparent; font-size:24px; cursor:pointer; color:#64748b; }
.account-actions { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-top:18px; }
.account-actions button,.account-logout { min-height:42px; border:0; border-radius:6px; background:#2563eb; color:#fff; font-weight:700; cursor:pointer; }
.account-actions button+button { background:#0f766e; }
.account-wechat{margin-top:16px;padding:15px;border:1px solid var(--wechat-line);border-radius:10px;background:linear-gradient(145deg,#f7fff9,var(--wechat-soft))}.account-wechat-title{display:flex;align-items:center;gap:9px;margin-bottom:11px;color:#14532d}.account-wechat-title span,.account-wechat-mark{display:grid;place-items:center;width:30px;height:30px;flex:0 0 30px;border-radius:9px;background:var(--wechat);color:#fff;font-size:13px;font-weight:900;box-shadow:0 5px 14px rgba(7,169,86,.2)}.account-wechat button{width:100%;min-height:46px;border:0;border-radius:7px;background:var(--wechat);color:#fff;font-size:15px;font-weight:800;cursor:pointer}.account-wechat button:hover{background:var(--wechat-dark)}.account-wechat button:focus-visible,.account-wechat-binding button:focus-visible{outline:3px solid #86efac;outline-offset:2px}.account-wechat button:disabled{background:#dbe4e0;color:#64748b;cursor:not-allowed;box-shadow:none}.account-wechat p{margin:8px 0 0!important;font-size:12px!important}.account-data-tools [hidden]{display:none}
.account-logout { width:100%; background:#475569; margin-top:12px; }
.account-error { min-height:20px; margin-top:8px; color:#dc2626; font-size:13px; }
.account-data-tools{margin-top:18px;padding-top:14px;border-top:1px solid #e2e8f0}.account-data-tools h3{margin:0;font-size:15px}.account-data-tools p{margin:4px 0 10px!important;font-size:12px!important}.account-wechat-binding{margin:13px 0 15px;padding:13px;border:1px solid #d6e7dc;border-radius:9px;background:#f8fcf9}.account-wechat-binding>div{display:flex;align-items:flex-start;gap:10px}.account-wechat-binding strong{display:block;color:#14532d;font-size:14px}.account-wechat-binding p{margin:3px 0 0!important;color:#557264!important;line-height:1.5}.account-wechat-binding button{width:100%;min-height:42px;margin-top:10px;border:1px solid var(--wechat);border-radius:7px;background:#fff;color:var(--wechat-dark);font-weight:800;cursor:pointer}.account-wechat-binding[data-state="connected"]{border-color:var(--wechat-line);background:var(--wechat-soft)}.account-wechat-binding[data-state="connected"] button{border-color:#f3c8c8;color:#a33a3a;background:#fff}.account-wechat-binding button:disabled{border-color:#d7e0db;background:#edf2ef;color:#718078;cursor:not-allowed}.account-data-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:9px}.account-data-actions button{min-height:40px;border:1px solid #cbd5e1;border-radius:7px;background:#fff;color:#334155;font-weight:700;cursor:pointer}.account-data-actions .danger{grid-column:1/-1;border-color:#fecaca;color:#b91c1c;background:#fff7f7}.account-data-tools>a{display:block;margin-top:8px;color:#2563eb;font-size:12px}.account-data-tools input{font-size:16px}
@media(max-width:480px){.account-dialog{width:calc(100vw - 16px);max-height:calc(100dvh - 16px);padding:20px 16px}.account-actions,.account-data-actions{grid-template-columns:1fr}.account-data-actions .danger{grid-column:auto}.account-wechat,.account-wechat-binding{padding:12px}}
.picker-heading { display:flex; align-items:center; justify-content:space-between; max-width:460px; margin:16px auto 24px; }
.picker-heading h1 { margin:0; color:#1f2937; font-size:22px; }
.picker-heading a { color:#2563eb; font-size:14px; font-weight:700; }
.question-toolbar { display:flex; justify-content:space-between; align-items:center; gap:12px; }
.favorite-button { min-height:32px; border:1px solid #cbd5e1; border-radius:6px; background:#fff; color:#475569; padding:0 10px; font-size:13px; font-weight:700; cursor:pointer; white-space:nowrap; }
.favorite-button.active { border-color:#d97706; color:#92400e; background:#fffbeb; }
.learning-center { padding-bottom:40px; color:#1e293b; }
.learning-header,.learning-section-title { display:flex; align-items:center; justify-content:space-between; gap:16px; }
.learning-header h1 { margin:0; font-size:24px; }
.learning-header p { margin:4px 0 0; color:#64748b; font-size:14px; }
.learning-header a { color:#2563eb; font-size:14px; font-weight:700; }
.learning-summary { display:grid; grid-template-columns:repeat(3,1fr); margin:24px 0; border-top:1px solid #e2e8f0; border-bottom:1px solid #e2e8f0; }
.learning-summary div { padding:18px 8px; text-align:center; border-right:1px solid #e2e8f0; }
.learning-summary div:last-child { border:0; }
.learning-summary strong { display:block; font-size:24px; color:#0f172a; }
.learning-summary span { display:block; margin-top:3px; color:#64748b; font-size:12px; }
.learning-center section { margin-top:28px; }
.learning-center h2 { margin:0 0 12px; font-size:17px; }
.learning-section-title select { height:34px; border:1px solid #cbd5e1; border-radius:6px; background:#fff; padding:0 8px; }
.learning-progress-row { display:grid; grid-template-columns:minmax(120px,180px) 1fr 42px; gap:12px; align-items:center; padding:9px 0; }
.learning-progress-row div:first-child { display:flex; flex-direction:column; }
.learning-progress-row strong { font-size:14px; }
.learning-progress-row span { color:#64748b; font-size:12px; }
.learning-progress-track { height:8px; background:#e2e8f0; overflow:hidden; border-radius:4px; }
.learning-progress-track i { display:block; height:100%; background:#0f766e; }
.learning-progress-row b { text-align:right; font-size:13px; }
.learning-item { display:flex; align-items:flex-start; justify-content:space-between; gap:14px; padding:14px 0; border-bottom:1px solid #e2e8f0; }
.learning-item span { color:#64748b; font-size:12px; }
.learning-item p { margin:5px 0 0; color:#1e293b; font-size:14px; line-height:1.55; }
.learning-item button { border:0; background:transparent; color:#94a3b8; font-size:22px; cursor:pointer; }
.learning-item b.correct { color:#047857; }.learning-item b.wrong { color:#dc2626; }
.learning-empty { padding:24px 0; color:#94a3b8; text-align:center; font-size:14px; }
@media (max-width:560px) { .learning-progress-row { grid-template-columns:110px 1fr 38px; gap:8px; } .learning-summary strong { font-size:20px; } }

/* ===== Mobile/PWA compact shell ===== */
@media (max-width: 767px) {
  html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
  .top-nav {
    padding: env(safe-area-inset-top, 0px) 11px 0 !important;
    min-height: calc(42px + env(safe-area-inset-top, 0px));
    position: sticky; top: 0; z-index: 80;
  }
  .nav-inner { height: 42px !important; min-height: 42px; gap: 8px; }
  .nav-logo { max-width: 48vw; font-size: 13px !important; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .nav-links { gap: 5px !important; }
  .nav-link { padding: 4px 7px !important; font-size: 11px !important; }
  .nav-links .nav-link:not(.nav-cta):not(.active) { display: none; }
  .nav-cta { border-radius: 5px !important; }

  .portal-main { padding: 0 11px !important; }
  .hero-banner { padding: 20px 12px !important; margin: 10px 0 18px !important; border-radius: 12px !important; }
  .hero-banner h1 { font-size: 21px !important; }
  .hero-subtitle { font-size: 12px !important; margin-top: 3px !important; }
  .countdown-card { padding: 11px 8px !important; margin-top: 14px !important; }
  .countdown-label,.countdown-hint { font-size: 10px !important; }
  .countdown-digits { gap: 5px !important; }
  .cd-num { min-width: 42px; padding: 3px 5px !important; font-size: 22px !important; border-radius: 7px !important; }
  .cd-unit { font-size: 9px !important; }
  .section-title { margin: 18px 0 9px !important; font-size: 16px !important; }
  .grid-4 { grid-template-columns: 1fr 1fr !important; gap: 8px !important; }
  .subject-card { min-height: 116px; padding: 13px 10px !important; border-radius: 10px !important; }
  .sc-icon { font-size: 25px !important; }
  .sc-name { font-size: 14px !important; }
  .sc-meta { font-size: 10px !important; line-height: 1.35 !important; }
  .sc-arrow { font-size: 11px !important; }
  .notice-item { padding: 11px 9px !important; gap: 8px !important; }
  .notice-date { font-size: 10px !important; }
  .notice-title { font-size: 13px !important; }
  .syllabus-grid { gap: 8px !important; }
  .syl-card { padding: 12px !important; gap: 9px !important; border-radius: 10px !important; }
  .syl-icon { font-size: 22px !important; }
  .syl-name { font-size: 13px !important; }
  .syl-topics { font-size: 11px !important; line-height: 1.45 !important; }

  .content-page,.news-list-page,.syllabus-list-page { padding: 18px 12px calc(32px + env(safe-area-inset-bottom, 0px)) !important; }
  .content-page h1,.news-list-page h1,.syllabus-list-page h1 { font-size: 21px !important; }
  .content-page .cp-body { font-size: 13.5px !important; line-height: 1.72 !important; }
  .content-page .cp-body h2 { margin: 21px 0 9px !important; font-size: 17px !important; }
  .content-page .cp-body h3 { margin: 17px 0 7px !important; font-size: 14.5px !important; }
  .content-page .cp-body table { display: block; overflow-x: auto; font-size: 12px !important; }
  .news-list-item { padding: 12px 0 !important; gap: 9px !important; }
  .news-list-item .nl-date { font-size: 10px !important; }
  .news-list-item .nl-title { font-size: 13px !important; }

}

@media all and (display-mode: standalone) and (max-width: 767px) {
  .hero-banner { padding-top: 17px !important; }
  .portal-footer { padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px)) !important; }
}
.notice-arrow { color: #94a3b8; font-size: 14px; transition: transform 0.2s; }
.notice-item:hover .notice-arrow { transform: translateX(3px); }
.notice-more { padding: 13px 18px; text-align: center; font-family: 'Inter', sans-serif; font-size: 14px; color: #475569; font-weight: 600; text-decoration: none; border-radius: 14px; transition: background 0.2s; }
.notice-more:hover { background: #f1f5f9; }

/* === 大纲卡片 === */
.syllabus-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.syl-card {
  display: flex; gap: 14px; padding: 18px;
  border-radius: 16px; background: #f8fafc;
  text-decoration: none; color: #334155;
  border: 0.5px solid rgba(0,0,0,0.05);
  transition: all 0.25s; align-items: flex-start;
}
.syl-card:hover { border-color: rgba(0,0,0,0.12); background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.03), 0 6px 16px rgba(0,0,0,.05); transform: translateY(-2px); }
.syl-icon { font-size: 28px; flex-shrink: 0; line-height: 1; }
.syl-name { font-family: 'Inter', sans-serif; font-size: 15px; font-weight: 600; margin-bottom: 6px; letter-spacing: -0.1px; }
.syl-topics { font-family: 'Inter', sans-serif; font-size: 13px; color: #64748b; line-height: 1.6; }

/* === Footer === */
.portal-footer { text-align: center; padding: 36px 16px; font-family: 'Inter', sans-serif; font-size: 13px; color: #94a3b8; line-height: 2; }

/* === PWA 安装入口 === */
.pwa-install-trigger {
  display: inline-flex; align-items: center; justify-content: center; gap: 5px;
  min-width: 34px; height: 32px; padding: 0 10px; border: 1px solid #cbd5e1;
  border-radius: 6px; background: #fff; color: #173b67; cursor: pointer;
  font: 700 12px/1 'Inter', sans-serif; white-space: nowrap;
}
.pwa-install-trigger:hover { border-color: #173b67; background: #f5f8fc; }
.pwa-install-trigger span:first-child { font-size: 16px; line-height: 1; }
.pwa-install-trigger[hidden] { display: none !important; }
.pwa-install-trigger:focus-visible,
.install-btn:focus-visible,
.install-close:focus-visible,
.pwa-install-dialog button:focus-visible { outline: 3px solid #60a5fa; outline-offset: 2px; }

.install-banner {
  position: relative; z-index: 70;
  display: none; border-top: 1px solid #294968; background: #102d4f; color: #fff;
  box-shadow: 0 8px 20px rgba(15,23,42,.12); animation: pwaReveal .24s ease-out;
}
.install-banner.show { display: block; }
.install-inner {
  display: flex; align-items: center; gap: 12px; max-width: 1100px;
  margin: 0 auto; padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
}
.install-symbol {
  display: grid; place-items: center; width: 30px; height: 30px; flex: 0 0 30px;
  border: 1px solid #7dd3fc; border-radius: 6px; color: #bae6fd; font-size: 18px;
}
.install-text { display: block; flex: 1; min-width: 0; font-family: 'Inter', sans-serif; }
.install-text strong,.install-text small { display: block; letter-spacing: 0; }
.install-text strong { font-size: 14px; }
.install-text small { margin-top: 2px; color: #bfdbfe; font-size: 11px; }
.install-btn {
  min-height: 36px; padding: 0 16px; border: 0; border-radius: 6px;
  background: #fff; color: #102d4f; cursor: pointer;
  font: 700 13px/1 'Inter', sans-serif; white-space: nowrap;
}
.install-close {
  display: grid; place-items: center; width: 36px; height: 36px; padding: 0;
  border: 0; background: transparent; color: #bfdbfe; cursor: pointer; font-size: 21px;
}

.pwa-install-dialog {
  width: min(420px,calc(100vw - 24px)); max-height: min(640px,calc(100dvh - 24px));
  padding: 0; overflow: auto; border: 0; border-radius: 8px;
  background: #fff; color: #172033; box-shadow: 0 24px 64px rgba(15,23,42,.28);
}
.pwa-install-dialog::backdrop { background: rgba(15,23,42,.58); backdrop-filter: blur(2px); }
.pwa-install-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  padding: 20px; background: #102d4f; color: #fff;
}
.pwa-install-head small { color: #7dd3fc; font: 800 10px/1.2 'Inter', sans-serif; letter-spacing: .14em; }
.pwa-install-head h2 { margin: 5px 0 0; color: #fff; font: 700 21px/1.25 'Inter', sans-serif; letter-spacing: 0; }
.pwa-install-head button {
  display: grid; place-items: center; width: 36px; height: 36px; flex: 0 0 36px;
  padding: 0; border: 1px solid #537493; border-radius: 6px;
  background: transparent; color: #dbeafe; cursor: pointer; font-size: 22px;
}
.pwa-install-body { padding: 20px; }
.pwa-install-body>p:first-child { margin: 0; color: #475569; font-size: 14px; line-height: 1.7; }
.pwa-install-steps { margin: 18px 0 0; padding: 0; list-style: none; }
.pwa-install-steps:empty { display: none; }
.pwa-install-steps li { display: grid; grid-template-columns: 26px 1fr; align-items: center; gap: 10px; margin-top: 12px; }
.pwa-install-steps b {
  display: grid; place-items: center; width: 26px; height: 26px;
  border-radius: 50%; background: #e8f1fa; color: #173b67; font-size: 12px;
}
.pwa-install-steps span { color: #24364b; font-size: 14px; line-height: 1.55; }
.pwa-install-status { min-height: 18px; margin: 14px 0 0; color: #0f766e; font-size: 12px; }
.pwa-install-actions { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-top: 8px; }
.pwa-install-actions button { min-height: 44px; padding: 0 16px; border-radius: 6px; cursor: pointer; font-weight: 700; }
.pwa-install-primary { border: 0; background: #155eef; color: #fff; }
.pwa-install-copy { border: 1px solid #cbd5e1; background: #fff; color: #334155; }
.pwa-install-copy[hidden] { display: none; }
@keyframes pwaReveal { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 767px) {
  html, body { min-height: 100%; overflow-y: auto; }
  .pwa-install-trigger { height: 30px; padding: 0 8px; font-size: 11px; }
  .install-inner { gap: 8px; padding: 9px 10px calc(9px + env(safe-area-inset-bottom, 0px)); }
  .install-symbol { width: 28px; height: 28px; flex-basis: 28px; }
  .install-text strong { font-size: 12px; }
  .install-text small { font-size: 10px; }
  .install-btn { min-height: 34px; padding: 0 13px; font-size: 12px; }
  .install-close { width: 32px; height: 34px; }
  .pwa-install-dialog {
    inset: auto 0 0; width: 100%; max-width: none; max-height: calc(100dvh - env(safe-area-inset-top, 0px) - 12px);
    margin: 0; border-radius: 8px 8px 0 0;
  }
  .onboarding-dialog { inset:auto 0 0; width:100%; max-width:none; max-height:calc(100dvh - 12px); margin:0; border-radius:8px 8px 0 0; }
  .onboarding-dialog form { padding:20px 16px calc(20px + env(safe-area-inset-bottom,0px)); }
  .pwa-install-head { padding: 18px 16px; }
  .pwa-install-body { padding: 18px 16px calc(18px + env(safe-area-inset-bottom, 0px)); }
}
@media (max-width: 360px) {
  .pwa-install-trigger { width: 32px; padding: 0; }
  .pwa-install-label { display: none; }
  .install-text small { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .install-banner { animation: none; }
}

/* === 内容页通用 === */
.content-page { max-width: 800px; margin: 0 auto; padding: 28px 16px 50px; }
.content-page h1 { font-family: 'Noto Serif SC', serif; font-size: 26px; font-weight: 700; color: #1e293b; margin: 0 0 8px; }
.content-page .cp-meta { font-family: 'Inter', sans-serif; font-size: 13px; color: #94a3b8; margin-bottom: 24px; }
.content-page .cp-body { font-family: 'Inter', sans-serif; font-size: 15px; line-height: 1.85; color: #334155; }
.content-page .cp-body h2 { font-family: 'Noto Serif SC', serif; font-size: 19px; font-weight: 600; color: #1e293b; margin: 28px 0 12px; padding-bottom: 8px; border-bottom: 1px solid #e2e8f0; }
.content-page .cp-body h3 { font-family: 'Inter', sans-serif; font-size: 16px; font-weight: 600; color: #334155; margin: 22px 0 10px; }
.content-page .cp-body ul, .content-page .cp-body ol { padding-left: 20px; margin: 10px 0; }
.content-page .cp-body li { margin: 6px 0; }
.content-page .cp-body table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.content-page .cp-body th, .content-page .cp-body td { border: 0.5px solid #e2e8f0; padding: 8px 12px; text-align: left; }
.content-page .cp-body th { background: #f8fafc; font-weight: 600; }
.content-page .cp-back { display: inline-block; margin-top: 32px; padding: 10px 22px; background: #f1f5f9; color: #475569; border-radius: 10px; text-decoration: none; font-family: 'Inter', sans-serif; font-weight: 600; font-size: 14px; transition: all 0.2s; }
.content-page .cp-back:hover { background: #e2e8f0; color: #1e293b; }

/* === 新闻/大纲列表页 === */
.news-list-page, .syllabus-list-page { max-width: 800px; margin: 0 auto; padding: 28px 16px 50px; }
.news-list-page h1, .syllabus-list-page h1 { font-family: 'Noto Serif SC', serif; font-size: 26px; font-weight: 700; color: #1e293b; }
.news-list-item { display: flex; align-items: center; padding: 15px 0; border-bottom: 0.5px solid #e2e8f0; text-decoration: none; color: #334155; gap: 14px; transition: all 0.2s; }
.news-list-item:hover { color: #1e293b; padding-left: 4px; }
.news-list-item .nl-date { font-family: 'Inter', sans-serif; font-size: 13px; font-weight: 500; color: #94a3b8; white-space: nowrap; }
.news-list-item .nl-title { font-family: 'Inter', sans-serif; font-size: 15px; font-weight: 500; flex: 1; }

/* ========================================
   移动端响应式
   ======================================== */
@media (max-width: 768px) {
  .hero-banner { padding: 32px 16px; border-radius: 20px; margin: 16px 0 28px; }
  .hero-banner h1 { font-size: 28px; }
  .hero-subtitle { font-size: 14px; }
  .cd-num { font-size: 30px; padding: 5px 8px; border-radius: 10px; }
  .countdown-digits { gap: 8px; }
  .cd-item { min-width: 48px; }
  .grid-4 { grid-template-columns: 1fr 1fr; gap: 10px; }
  .subject-card { padding: 20px 14px; }
  .sc-name { font-size: 15px; }
  .sc-meta { font-size: 11px; }
  .syllabus-grid { grid-template-columns: 1fr; }
  .nav-logo { font-size: 16px; }
  .nav-link { padding: 6px 10px; font-size: 13px; }
}

@media (max-width: 400px) {
  .hero-banner h1 { font-size: 24px; }
  .hero-subtitle { font-size: 13px; }
  .countdown-card { padding: 16px 12px; }
  .cd-num { font-size: 26px; }
  .grid-4 { gap: 8px; }
  .subject-card { padding: 16px 12px; border-radius: 14px; }
  .sc-icon { font-size: 28px; }
}

.account-recovery-toggle{display:block;margin:10px auto 0;border:0;background:transparent;color:#4338ca;text-decoration:underline;cursor:pointer}.account-recovery-panel{margin-top:14px;padding-top:14px;border-top:1px solid #e2e8f0}.account-recovery-panel h3,.account-recovery-notice h3{margin:0 0 8px;font-size:16px}.account-recovery-panel button,.account-recovery-notice button{width:100%;min-height:40px;margin-top:8px}.account-recovery-notice{margin-top:14px;padding:14px;border:1px solid #c7d2fe;background:#eef2ff;border-radius:6px}.account-recovery-notice p{margin:6px 0 10px;color:#475569;font-size:13px}.account-recovery-notice code{display:block;overflow-wrap:anywhere;padding:10px;background:#fff;border:1px solid #cbd5e1;border-radius:4px;font-size:14px;line-height:1.5;user-select:all}.account-recovery-notice span{display:block;min-height:20px;margin-top:6px;color:#166534;font-size:13px}