:root {
  color-scheme: dark;
  /* Qoder 暗色基准 + HappyCoder 品牌蓝（Logo on-dark #4C8DFF，见 assets/brand/final/tokens/dark-ui-tokens.json） */
  --canvas: #080807;
  --surface: #1a1a17;
  --surface-input: #171716;
  --border: #2a2926;
  --text: #eeeeeb;
  --text-muted: #7b7b75;
  --text-placeholder: #484743;
  --primary: #4c8dff;
  --primary-strong: #176bff;
  --primary-foreground: #ffffff;
  --danger: #ec5b56;
  --warning: #e5a13d;
  --hairline: rgb(76 141 255 / 70%);
  font-family: Inter, system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", sans-serif;
  background: var(--canvas);
  color: var(--text);
  font-synthesis: none;
}

* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; background: var(--canvas); }
button, input { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.topbar { display: flex; align-items: center; justify-content: space-between; height: 72px; padding: 0 clamp(24px, 5vw, 72px); border-bottom: 1px solid var(--border); background: rgb(8 8 7 / 82%); backdrop-filter: blur(18px); }
.topbar-actions { display: flex; align-items: center; gap: 4px; }
/* 官方 on-dark 横版 logo：只给定宽度，高度 auto，保持原始比例 */
.brand-logo { width: 180px; height: auto; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: clamp(48px, 7vw, 92px) 0 80px; }
.account-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, .75fr); align-items: center; gap: clamp(54px, 8vw, 118px); }
.hero-copy h1, .dashboard h1 { margin: 16px 0 24px; font-size: clamp(44px, 5.6vw, 72px); font-weight: 700; line-height: 1.08; letter-spacing: -.055em; }
.hero-copy > p:not(.eyebrow) { max-width: 620px; color: var(--text-muted); font-size: 18px; line-height: 1.75; }
.eyebrow { margin: 0; color: var(--primary); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.trust-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.trust-list span { padding: 8px 12px; border: 1px solid var(--border); border-radius: 999px; color: var(--text-muted); background: var(--surface); font-size: 12px; transition: border-color .15s, color .15s; }
.trust-list span:hover { border-color: var(--hairline); color: var(--text); }
/* 卡片：12px 圆角 + 顶部绿色 hairline（Qoder 形态） */
.account-card { position: relative; min-height: 560px; padding: 32px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); overflow: hidden; }
.account-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 1px; background: linear-gradient(90deg, transparent, var(--hairline), transparent); }
.account-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 30px; padding: 4px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-input); }
.tab { min-height: 36px; border: 0; border-radius: 4px; color: var(--text-muted); background: transparent; font-size: 14px; font-weight: 600; transition: background-color .15s, color .15s; }
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); background: var(--border); }
.account-form h2 { margin: 8px 0 24px; font-size: 24px; font-weight: 500; letter-spacing: -.02em; }
.form-intro { margin: -8px 0 22px; color: var(--text-muted); font-size: 14px; line-height: 1.6; }
label { display: block; margin: 17px 0 8px; color: var(--text); font-size: 14px; font-weight: 500; }
input { width: 100%; height: 36px; padding: 0 12px; border: 1px solid var(--border); border-radius: 4px; outline: none; color: var(--text); background: var(--surface-input); transition: border-color .15s, box-shadow .15s; }
input::placeholder { color: var(--text-placeholder); }
input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgb(76 141 255 / 16%); }
.consent-row { display: grid; grid-template-columns: 18px 1fr; align-items: start; gap: 10px; margin-top: 20px; color: var(--text-muted); font-size: 13px; line-height: 1.5; }
.consent-row input { width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--primary); }
.consent-row strong { color: var(--text); font-weight: 600; }
.primary { width: 100%; min-height: 40px; margin-top: 24px; border: 0; border-radius: 4px; color: var(--primary-foreground); background: var(--primary); font-size: 14px; font-weight: 600; transition: background-color .15s; }
.primary:hover { background: var(--primary-strong); }
.primary:disabled { cursor: wait; opacity: .55; }
.link-button, .text-button { border: 0; color: var(--text-muted); background: transparent; font-size: 14px; font-weight: 500; transition: color .15s; }
.link-button:hover, .text-button:hover { color: var(--primary); }
.link-button { width: 100%; margin-top: 16px; }
.text-button { padding: 8px 12px; border-radius: 4px; }
.message { min-height: 22px; margin: 16px 0 0; color: var(--text-muted); font-size: 14px; line-height: 1.55; }
.message.error { color: var(--danger); }
.notice { margin: -12px 0 22px; padding: 12px 14px; border: 1px solid rgb(229 161 61 / 35%); border-radius: 8px; color: var(--warning); background: rgb(229 161 61 / 8%); font-size: 13px; line-height: 1.5; }
.dashboard { max-width: 980px; margin: 0 auto; }
.dashboard-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }
.dashboard h1 { margin-bottom: 12px; font-size: clamp(40px, 5vw, 62px); }
.muted { color: var(--text-muted); }
.verified-badge { flex: 0 0 auto; margin-top: 28px; padding: 6px 12px; border: 1px solid rgb(76 141 255 / 38%); border-radius: 999px; color: var(--primary); background: rgb(76 141 255 / 8%); font-size: 12px; font-weight: 600; }
.context-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; margin-top: 42px; }
.context-card { min-height: 170px; padding: 24px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); transition: border-color .15s; }
.context-card:hover { border-color: var(--hairline); }
.context-card h2 { margin: 8px 0 16px; font-size: 20px; }
.context-card p { margin: 7px 0 0; color: var(--text-muted); font-size: 13px; line-height: 1.55; overflow-wrap: anywhere; }
.context-card .status { color: var(--primary); font-weight: 600; }
.happyc-panel { margin-top: 22px; padding: 24px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }
.happyc-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.happyc-heading h2 { margin: 8px 0 0; font-size: 24px; }
.happyc-heading .muted { margin: 2px 0 0; font-size: 12px; }
.happyc-totals { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 24px 0; }
.happyc-totals article { padding: 18px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-input); }
.happyc-totals span { display: block; margin-bottom: 10px; color: var(--text-muted); font-size: 12px; }
.happyc-totals strong { color: var(--primary); font-size: 22px; }
.happyc-panel h3 { margin: 0 0 12px; font-size: 15px; }
.happyc-ledger { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.happyc-ledger li { display: grid; grid-template-columns: 1fr auto auto; gap: 14px; align-items: center; padding: 10px 13px; border-radius: 6px; color: var(--text-muted); background: var(--surface-input); font-size: 12px; }
.happyc-ledger strong { color: var(--text); }

@media (max-width: 820px) {
  .account-layout { grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: 44px; }
  .hero-copy { padding: 10px 4px 0; }
  .account-card { min-height: 0; padding: 24px; }
  .dashboard-heading { flex-direction: column; }
  .verified-badge { margin-top: 0; }
  .happyc-heading { flex-direction: column; }
  .happyc-totals { grid-template-columns: 1fr; }
  .happyc-ledger li { grid-template-columns: 1fr auto; }
  .happyc-ledger time { grid-column: 1 / -1; }
}