/* ================================================================
   DA-Learn · 商务数据分析在线教育平台
   主题色 + 浅色 / 深色主题 + 响应式
   ================================================================ */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-soft: #dbeafe;
  --success: #10b981;
  --success-soft: #d1fae5;
  --danger: #ef4444;
  --warning: #f59e0b;
  --orange: #f97316;
  --text: #0f172a;
  --text-soft: #475569;
  --muted: #94a3b8;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-soft: #f1f5f9;
  --shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 8px 30px rgba(15, 23, 42, 0.10);
  --radius: 12px;
  --radius-lg: 18px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;
}

html[data-theme="dark"] {
  --primary: #60a5fa;
  --primary-dark: #3b82f6;
  --primary-soft: #1e3a8a;
  --success: #34d399;
  --success-soft: #064e3b;
  --text: #e2e8f0;
  --text-soft: #cbd5e1;
  --muted: #64748b;
  --bg: #0f172a;
  --bg-alt: #111c33;
  --bg-card: #1a2740;
  --border: #334155;
  --border-soft: #1f2a44;
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.50);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s, color 0.2s;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* =========== Header =========== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 62px; gap: 16px;
}
.brand {
  font-size: 20px; font-weight: 800; color: var(--text);
  letter-spacing: -0.02em;
}
.brand span { color: var(--primary); }
.nav-links { display: flex; gap: 20px; }
.nav-links a { color: var(--text-soft); font-size: 15px; font-weight: 500; padding: 8px 4px; border-bottom: 2px solid transparent; transition: all 0.15s; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); border-bottom-color: var(--primary); }
.nav-right { display: flex; align-items: center; gap: 12px; }

.user-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px; font-weight: 500;
}
.chip-xp { color: var(--warning); font-weight: 700; }
.icon-btn {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  width: 36px; height: 36px; border-radius: 50%;
  cursor: pointer; font-size: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: transform 0.15s;
}
.icon-btn:hover { transform: rotate(-15deg); }

/* =========== Hero =========== */
.hero { padding: 60px 0 40px; background:
  radial-gradient(1000px 500px at 10% 0%, var(--primary-soft) 0%, transparent 60%),
  radial-gradient(800px 400px at 90% 10%, color-mix(in srgb, var(--primary-soft) 50%, #fff) 0%, transparent 55%),
  var(--bg);
}
html[data-theme="dark"] .hero {
  background:
    radial-gradient(1000px 500px at 10% 0%, color-mix(in srgb, var(--primary) 20%, transparent) 0%, transparent 60%),
    var(--bg);
}
.hero-grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center;
}
.hero-text h1 { font-size: 46px; line-height: 1.15; letter-spacing: -0.03em; margin: 0 0 16px; font-weight: 800; }
.hero-text .hl { color: var(--primary); }
.lead { font-size: 18px; color: var(--text-soft); max-width: 560px; }
.hero-cta { margin: 28px 0 20px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 28px; margin-top: 24px; }
.hero-stats > div { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 26px; font-weight: 800; color: var(--primary); }
.hero-stats span { font-size: 13px; color: var(--muted); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 10px;
  font-size: 14px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.1s, box-shadow 0.2s, background 0.2s;
  background: var(--bg-alt); color: var(--text);
  font-family: var(--sans);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: white; box-shadow: 0 4px 14px color-mix(in srgb, var(--primary) 40%, transparent); }
.btn-primary:hover { background: var(--primary-dark); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #059669; color: white; }
.btn-ghost { background: transparent; border-color: var(--border); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #dc2626; color: white; }
.btn-lg { padding: 14px 26px; font-size: 16px; border-radius: 12px; }

.hero-card .terminal {
  background: #1e1e2e; color: #e4e4e7; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.terminal-bar { display: flex; align-items: center; gap: 6px; padding: 12px 16px; background: #27273a; }
.terminal-bar span:nth-child(-n+3) { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.terminal-bar span:nth-child(1) { background: #ff5f57; }
.terminal-bar span:nth-child(2) { background: #febc2e; }
.terminal-bar span:nth-child(3) { background: #28c840; }
.terminal-title { margin-left: 10px; font-family: var(--mono); font-size: 12px; color: #a1a1aa; }
.terminal-body { margin: 0; padding: 22px 24px; font-family: var(--mono); font-size: 13px; line-height: 1.75; overflow-x: auto; }
.terminal-body code { background: none; padding: 0; }
.py-kw { color: #c084fc; } .py-str { color: #86efac; } .py-num { color: #fbbf24; }
.py-name { color: #93c5fd; } .py-op { color: #e4e4e7; } .py-cmt { color: #71717a; }
.hero-note { margin: 10px 2px; font-size: 12px; color: var(--muted); }

/* =========== Sections =========== */
.section { padding: 50px 0; }
.section.alt { background: var(--bg-alt); }
.section h2 { font-size: 28px; margin: 0 0 8px; letter-spacing: -0.02em; }

.features h2, .stage-head h2 { margin-top: 0; }

.feature-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  margin-top: 28px;
}
.feature {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.feature-icon { font-size: 32px; }
.feature h3 { margin: 10px 0 6px; font-size: 18px; }
.feature p { color: var(--text-soft); font-size: 14px; margin: 0; }

/* =========== Stages =========== */
.stage-head { margin-bottom: 22px; }
.stage-tag {
  display: inline-block; background: var(--primary-soft); color: var(--primary);
  font-size: 12px; font-weight: 700; padding: 5px 12px; border-radius: 999px;
  letter-spacing: 0.05em;
}
.tag-blue { background: #e0e7ff; color: #4338ca; }
html[data-theme="dark"] .tag-blue { background: #1e3a8a; color: #93c5fd; }
.tag-orange { background: #ffedd5; color: #c2410c; }
html[data-theme="dark"] .tag-orange { background: #7c2d12; color: #fdba74; }

.course-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.course-grid.dense { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

.course-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  display: flex; flex-direction: column;
  cursor: pointer;
}
.course-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.course-card .cc-head { display: flex; justify-content: space-between; align-items: start; }
.course-card .cc-icon { font-size: 36px; }
.course-card .cc-badge { font-size: 11px; background: var(--bg-alt); color: var(--text-soft); padding: 3px 10px; border-radius: 999px; font-weight: 600; }
.course-card h3 { margin: 14px 0 6px; font-size: 18px; }
.course-card p { color: var(--text-soft); font-size: 14px; margin: 0 0 18px; flex: 1; }
.course-card .cc-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); border-top: 1px solid var(--border-soft); padding-top: 14px; }
.course-card .cc-progress { background: var(--border-soft); height: 6px; border-radius: 999px; margin-bottom: 10px; overflow: hidden; }
.course-card .cc-progress-fill { background: linear-gradient(90deg, var(--primary), var(--success)); height: 100%; transition: width 0.4s; }
.course-card.completed { border-color: var(--success); }

.cta-section { padding: 60px 0; }
.cta-box {
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  color: white; border-radius: var(--radius-lg);
  padding: 40px; display: flex; justify-content: space-between; align-items: center; gap: 20px;
  flex-wrap: wrap;
}
.cta-box h2 { color: white; margin: 0 0 6px; }
.cta-box p { color: rgba(255,255,255,0.85); margin: 0; }
.cta-box .btn-primary { background: white; color: var(--primary); }
.cta-box .btn-primary:hover { background: #f1f5f9; color: var(--primary-dark); }

/* =========== Course page =========== */
.course-main { padding-top: 30px; padding-bottom: 60px; }
.back-link { display: inline-block; margin-bottom: 16px; font-size: 14px; color: var(--text-soft); }

.course-hero {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow);
  margin-bottom: 28px;
}
.course-hero h1 { margin: 12px 0 10px; font-size: 32px; letter-spacing: -0.02em; }
.course-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 22px 0; }
.course-meta > div { display: flex; flex-direction: column; gap: 4px; }
.course-meta strong { font-size: 22px; color: var(--primary); }
.progress-bar { background: var(--border-soft); height: 8px; border-radius: 999px; overflow: hidden; }
.progress-fill { background: linear-gradient(90deg, var(--primary), var(--success)); height: 100%; transition: width 0.4s; }

.chapters-wrap { display: flex; flex-direction: column; gap: 14px; }
.chapter-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.chapter-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 22px; cursor: pointer;
  background: var(--bg-alt);
}
.chapter-head:hover { filter: brightness(0.98); }
.chapter-head h3 { margin: 0; font-size: 17px; }
.chapter-head .ch-meta { font-size: 13px; color: var(--muted); }
.chapter-body { padding: 4px 22px 18px; display: none; }
.chapter-card.open .chapter-body { display: block; }
.chapter-card.open .chapter-head { border-bottom: 1px solid var(--border-soft); }
.lesson-list { list-style: none; padding: 0; margin: 12px 0; }
.lesson-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-radius: 8px;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}
.lesson-list li:hover { background: var(--bg-alt); border-color: var(--border-soft); }
.lesson-list .ll-left { display: flex; align-items: center; gap: 10px; }
.lesson-list .ll-icon { width: 28px; height: 28px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; background: var(--primary-soft); color: var(--primary); }
.lesson-list .ll-done { background: var(--success-soft); color: var(--success); }
.lesson-list .ll-type { font-size: 11px; color: var(--muted); margin-left: 6px; text-transform: uppercase; letter-spacing: 0.05em; }
.lesson-list .ll-xp { font-size: 12px; color: var(--warning); font-weight: 600; }

/* =========== Lesson page =========== */
.lesson-main { padding-top: 24px; padding-bottom: 60px; max-width: 920px; }
.lesson-nav { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.lesson-head { margin: 18px 0 26px; padding-bottom: 20px; border-bottom: 1px solid var(--border-soft); }
.lesson-head h1 { margin: 8px 0 6px; font-size: 30px; letter-spacing: -0.02em; }
.lesson-badge { font-size: 12px; color: var(--primary); background: var(--primary-soft); padding: 4px 10px; border-radius: 999px; font-weight: 600; }

.lesson-content { font-size: 16px; line-height: 1.8; }
.lesson-content h2 { font-size: 22px; margin: 34px 0 10px; }
.lesson-content h3 { font-size: 18px; margin: 24px 0 8px; }
.lesson-content p { margin: 12px 0; color: var(--text-soft); }
.lesson-content ul, .lesson-content ol { padding-left: 24px; color: var(--text-soft); }
.lesson-content li { margin: 6px 0; }
.lesson-content code { background: var(--bg-alt); padding: 2px 6px; border-radius: 5px; font-family: var(--mono); font-size: 0.9em; color: var(--primary-dark); }
html[data-theme="dark"] .lesson-content code { color: var(--primary); }
.lesson-content pre {
  background: #0f172a; color: #e2e8f0;
  padding: 18px 22px; border-radius: var(--radius); overflow-x: auto;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.7;
  border: 1px solid #1e293b;
}
.lesson-content pre code { background: none; padding: 0; color: inherit; font-size: inherit; }
.lesson-content blockquote {
  border-left: 4px solid var(--primary); background: var(--primary-soft);
  padding: 14px 18px; margin: 16px 0; border-radius: 8px;
  color: var(--text-soft);
}
.lesson-content table { border-collapse: collapse; margin: 16px 0; width: 100%; font-size: 14px; }
.lesson-content th, .lesson-content td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.lesson-content th { background: var(--bg-alt); }

/* =========== Code editor =========== */
.code-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); margin: 26px 0; overflow: hidden;
  box-shadow: var(--shadow);
}
.code-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 18px; background: var(--bg-alt); border-bottom: 1px solid var(--border-soft); flex-wrap: wrap; gap: 10px;
}
.code-actions { display: flex; gap: 8px; }
.editor-wrap { padding: 14px 18px; background: #0f172a; }
html[data-theme="dark"] .editor-wrap { background: #090d1c; }
.code-editor {
  width: 100%; min-height: 220px;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.7;
  background: #0f172a; color: #e4e4e7;
  border: 1px solid #1e293b; border-radius: 8px;
  padding: 16px; resize: vertical;
  outline: none; white-space: pre;
  tab-size: 4;
}
html[data-theme="dark"] .code-editor { background: #090d1c; }
.code-editor:focus { border-color: var(--primary); }

.output-card { border-top: 1px solid var(--border-soft); padding: 14px 18px; }
.output-head { display: flex; justify-content: space-between; margin-bottom: 8px; }
.code-output {
  background: var(--bg-alt); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 16px; margin: 0; min-height: 60px; max-height: 420px; overflow: auto;
  font-family: var(--mono); font-size: 13px; line-height: 1.6; white-space: pre-wrap;
}
.code-output table { border-collapse: collapse; margin: 8px 0; width: auto; }
.code-output th, .code-output td { border: 1px solid var(--border); padding: 6px 10px; font-size: 12px; text-align: left; }
.code-output th { background: var(--bg-card); }

.judge-result {
  margin: 14px 18px; padding: 16px 18px; border-radius: var(--radius);
  font-weight: 500;
}
.judge-result.ok { background: var(--success-soft); color: #065f46; border: 1px solid var(--success); }
html[data-theme="dark"] .judge-result.ok { color: #6ee7b7; }
.judge-result.fail { background: #fee2e2; color: #991b1b; border: 1px solid var(--danger); }
html[data-theme="dark"] .judge-result.fail { background: #7f1d1d; color: #fecaca; }

/* =========== Quiz =========== */
.quiz-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; margin: 26px 0; }
.quiz-card h2 { margin: 0 0 6px; }
.q-question { margin: 24px 0 0; padding: 20px; border: 1px solid var(--border-soft); border-radius: var(--radius); }
.q-question h4 { margin: 0 0 14px; font-size: 15px; }
.q-option { display: block; margin: 8px 0; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; cursor: pointer; transition: all 0.15s; font-size: 14px; }
.q-option:hover { border-color: var(--primary); background: var(--primary-soft); }
.q-option input { margin-right: 10px; }
.q-option.correct { border-color: var(--success); background: var(--success-soft); color: #065f46; }
.q-option.wrong { border-color: var(--danger); background: #fee2e2; color: #991b1b; }
.q-fill-input { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; font-family: var(--mono); background: var(--bg); color: var(--text); }
.q-fill-input:focus { border-color: var(--primary); outline: none; }
.quiz-footer { margin-top: 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.quiz-result-box { padding: 14px 20px; border-radius: var(--radius); background: var(--primary-soft); color: var(--primary-dark); font-weight: 600; font-size: 15px; }

.lesson-footer { margin: 30px 0 10px; text-align: center; }

/* =========== Achievement page =========== */
.ach-main { padding-top: 30px; padding-bottom: 60px; }
.ach-hero {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 32px; box-shadow: var(--shadow); margin-bottom: 24px;
  display: flex; gap: 32px; align-items: center; justify-content: space-between; flex-wrap: wrap;
}
.ach-level-card { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.level-ring {
  width: 120px; height: 120px; border-radius: 50%;
  background: conic-gradient(var(--primary) 35%, var(--border-soft) 0);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-weight: 800; font-size: 22px;
  position: relative; box-shadow: var(--shadow);
}
.level-ring::before {
  content: ""; position: absolute; inset: 10px; border-radius: 50%; background: var(--bg-card);
}
.level-ring span { position: relative; z-index: 1; }

.ach-tools { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.name-edit { display: flex; align-items: center; gap: 8px; }
.name-edit label { font-size: 13px; color: var(--muted); }
.name-edit input { padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; background: var(--bg); color: var(--text); }

.badge-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; margin-top: 20px; }
.badge-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; text-align: center; transition: all 0.2s;
}
.badge-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.badge-card.locked { opacity: 0.4; filter: grayscale(1); }
.badge-card .bc-icon { font-size: 40px; }
.badge-card h4 { margin: 10px 0 4px; font-size: 15px; }
.badge-card p { font-size: 12px; color: var(--muted); margin: 0; }
.badge-card .bc-xp { display: inline-block; margin-top: 8px; font-size: 11px; font-weight: 600; color: var(--warning); background: var(--bg-alt); padding: 2px 10px; border-radius: 999px; }

.heatmap { display: grid; grid-template-rows: repeat(7, 16px); grid-auto-flow: column; grid-auto-columns: 16px; gap: 3px; margin-top: 18px; padding: 14px; overflow-x: auto; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); }
.heatmap .cell { width: 16px; height: 16px; border-radius: 3px; background: var(--border-soft); }
.heatmap .cell.l1 { background: #bae6fd; }
.heatmap .cell.l2 { background: #7dd3fc; }
.heatmap .cell.l3 { background: #38bdf8; }
.heatmap .cell.l4 { background: #0284c7; }
html[data-theme="dark"] .heatmap .cell.l1 { background: #075985; }
html[data-theme="dark"] .heatmap .cell.l2 { background: #0369a1; }
html[data-theme="dark"] .heatmap .cell.l3 { background: #0ea5e9; }
html[data-theme="dark"] .heatmap .cell.l4 { background: #38bdf8; }

.course-progress-list { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.cp-row {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 18px;
}
.cp-row strong { flex: 1; font-size: 15px; }
.cp-row .cp-pct { font-weight: 700; color: var(--primary); width: 50px; text-align: right; }
.cp-row .cp-bar { flex: 2; height: 8px; background: var(--border-soft); border-radius: 999px; overflow: hidden; }
.cp-row .cp-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--success)); }

/* =========== Footer =========== */
.site-footer {
  padding: 30px 0 50px; text-align: center;
  border-top: 1px solid var(--border-soft);
  color: var(--muted); font-size: 14px;
  margin-top: 40px;
}
.site-footer p { margin: 4px 0; }

/* =========== Responsive =========== */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .course-meta { grid-template-columns: repeat(2, 1fr); }
  .hero-text h1 { font-size: 36px; }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .feature-grid { grid-template-columns: 1fr; }
  .hero-text h1 { font-size: 28px; }
  .hero-stats { flex-wrap: wrap; gap: 18px; }
  .nav-right .user-chip { display: none; }
  .course-meta { grid-template-columns: 1fr 1fr; }
  .lesson-head h1 { font-size: 24px; }
  .cta-box { padding: 24px; }
  .ach-hero { padding: 22px; }
  .level-ring { width: 90px; height: 90px; font-size: 18px; }
}