:root {
  color-scheme: light;
  --bg: #FFF7ED; --card: #FFFFFF; --primary: #FB923C; --primary-d: #EA7A1F;
  --ink: #4A2E12; --muted: #9A7B5A; --line: #F1E2CE; --soft: #FFE8D2;
  --input-bg: #FFFFFF; --input-ink: #4A2E12;
  --radius: 18px; --shadow: 0 10px 30px rgba(234,122,31,0.12);
}
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #17120E; --card: #211913; --primary: #FB923C; --primary-d: #F59E0B;
  --ink: #F3E7D8; --muted: #B79B7E; --line: #3A2C20; --soft: #2C2017;
  --input-bg: #2C2017; --input-ink: #F3E7D8;
  --shadow: 0 10px 30px rgba(0,0,0,0.45);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "PingFang SC","Segoe UI",system-ui,-apple-system,sans-serif; background: var(--bg); color: var(--ink); line-height: 1.6; transition: background .25s ease, color .25s ease; }
a { color: inherit; text-decoration: none; }
.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }
header.bar { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; gap: 12px; }
.logo { font-weight: 800; font-size: 20px; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.logo .dot { width: 28px; height: 28px; border-radius: 50%; background: var(--primary); display: inline-block; flex: none; }
.nav { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.nav a { color: var(--muted); font-size: 14px; white-space: nowrap; }
.lang-switch { display: flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang-switch button { border: 0; background: transparent; padding: 6px 12px; cursor: pointer; font-size: 13px; color: var(--muted); }
.lang-switch button.active { background: var(--primary); color: #fff; }
.theme-btn { border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 999px; width: 38px; height: 38px; padding: 0; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; flex: none; transition: background .2s ease; }
.theme-btn:hover { background: var(--soft); }
.btn { display: inline-block; border: 0; cursor: pointer; border-radius: 999px; padding: 12px 22px; font-size: 15px; font-weight: 700; background: var(--primary); color: #fff; box-shadow: var(--shadow); transition: transform .08s ease; }
.btn:hover { transform: translateY(-1px); }
.btn.ghost { background: var(--card); color: var(--primary-d); border: 1px solid var(--line); box-shadow: none; }
[data-theme="dark"] .btn.ghost { background: transparent; color: var(--primary); }
.btn.small { padding: 8px 14px; font-size: 13px; }
.hero { text-align: center; padding: 60px 0 40px; }
.hero h1 { font-size: 40px; margin: 0 0 14px; letter-spacing: -0.5px; }
.hero p { color: var(--muted); font-size: 17px; max-width: 620px; margin: 0 auto 26px; }
.hero .cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin: 30px 0 50px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card h3 { margin: 10px 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card .emoji { font-size: 30px; }
.card ol { color: var(--muted); font-size: 14px; padding-left: 20px; margin: 8px 0 0; }
.appwrap { padding: 24px 0 60px; }
.tabs { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.tabs button { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 9px 16px; cursor: pointer; font-size: 14px; color: var(--muted); font-weight: 600; }
.tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.panel { display: none; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.panel.active { display: block; }
.panel h2 { margin-top: 0; }
label { display: block; font-weight: 600; margin: 16px 0 6px; font-size: 14px; }
input[type=text], input[type=number], input[type=email], input[type=password], textarea, select { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 12px; font-size: 15px; font-family: inherit; color: var(--input-ink); background: var(--input-bg); transition: border-color .15s ease; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); }
textarea { resize: vertical; min-height: 90px; }
.row { display: flex; gap: 12px; align-items: flex-end; }
.row > div { flex: 1; min-width: 0; }
.hint { color: var(--muted); font-size: 13px; margin-top: 8px; }
.mascot-show { text-align: center; padding: 10px 0; }
.mascot-show img { width: 140px; height: 140px; }
.buddy-name { font-size: 22px; font-weight: 800; text-align: center; margin-top: 6px; }
.stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin: 18px 0; }
.stat { background: var(--soft); border-radius: var(--radius); padding: 18px; text-align: center; }
.stat .num { font-size: 30px; font-weight: 800; color: var(--primary-d); }
.stat .lab { color: var(--muted); font-size: 13px; }
.goal-box { background: var(--soft); border-radius: 12px; padding: 14px; font-size: 14px; white-space: pre-wrap; word-break: break-all; }
.note { color: var(--muted); font-size: 13px; margin-top: 10px; }
.token-box { background: #2B2118; color: #FFE8D2; border-radius: 12px; padding: 14px; font-family: ui-monospace, Menlo, monospace; font-size: 12px; word-break: break-all; margin-top: 8px; }
footer { text-align: center; color: var(--muted); font-size: 13px; padding: 30px 0; }
.toast { position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 999px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 99; max-width: 90vw; }
.toast.show { opacity: 1; }
/* auth */
.auth-wrap { max-width: 380px; margin: 60px auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.auth-wrap h2 { margin: 0 0 4px; }
.auth-switch { text-align: center; color: var(--muted); font-size: 13px; margin-top: 14px; cursor: pointer; }
.auth-err { color: #C0392B; font-size: 13px; min-height: 18px; margin-top: 8px; }
.btn-google { display: inline-flex; align-items: center; justify-content: center; gap: 10px; width: 100%; border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 999px; padding: 12px 22px; font-size: 15px; font-weight: 700; cursor: pointer; box-shadow: var(--shadow); transition: transform .08s ease, background .2s ease; }
.btn-google:hover { transform: translateY(-1px); background: var(--soft); }
.btn-google svg { width: 18px; height: 18px; flex: none; }
.btn-google.nav-google { width: auto; padding: 8px 14px; font-size: 13px; font-weight: 600; }
.btn-google.small { width: auto; padding: 8px 14px; font-size: 13px; font-weight: 600; }
.auth-divider { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; margin: 16px 0; }
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.topuser { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.who-email { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 160px; }

/* billing / plans — 4-tier membership */
.billing-toggle { display: flex; justify-content: center; gap: 0; margin: 14px auto 18px; width: fit-content; background: var(--soft); border-radius: 999px; padding: 4px; border: 1px solid var(--line); }
.toggle-opt { padding: 8px 20px; border: none; background: transparent; cursor: pointer; font-size: 14px; font-weight: 600; color: var(--muted); border-radius: 999px; transition: all .2s ease; position: relative; }
.toggle-opt.active { background: var(--primary); color: #fff; box-shadow: var(--shadow); }
.save-badge { margin-left: 6px; background: #10B981; color: #fff; font-size: 10px; padding: 2px 7px; border-radius: 999px; font-weight: 700; vertical-align: middle; }

.plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 18px 0; }
@media (max-width: 720px) { .plans-grid { grid-template-columns: 1fr; } }

.plan-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 20px; text-align: center; position: relative; transition: transform .15s ease, box-shadow .15s ease; }
.plan-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.plan-card.featured { border-color: var(--primary); background: linear-gradient(180deg, var(--soft) 0%, var(--card) 100%); }
.plan-card.current { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary), var(--shadow); }
.popular-tag { position: absolute; top: -11px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: 11px; font-weight: 700; padding: 4px 14px; border-radius: 999px; white-space: nowrap; }
.save-tag { position: absolute; top: -11px; right: 12px; background: #10B981; color: #fff; font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
.plan-name { font-size: 17px; font-weight: 800; margin-top: 8px; }
.plan-price { font-size: 34px; font-weight: 800; color: var(--primary-d); margin: 8px 0 4px; line-height: 1; }
.plan-price span { font-size: 14px; color: var(--muted); font-weight: 600; }
.plan-chars { font-size: 13px; color: var(--muted); margin-bottom: 8px; display: flex; align-items: center; justify-content: center; gap: 5px; }
.plan-chars svg { flex-shrink: 0; opacity: 0.6; }
.plan-feat { list-style: none; padding: 0; margin: 10px 0 18px; color: var(--muted); font-size: 13px; text-align: left; }
.plan-feat li { padding: 5px 0; position: relative; padding-left: 18px; }
.plan-feat li::before { content: ""; position: absolute; left: 0; top: 11px; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); opacity: 0.5; }
.plan-badge { display: inline-block; background: var(--primary); color: #fff; border-radius: 999px; padding: 8px 16px; font-weight: 700; font-size: 13px; }

/* character preview in plan tab */
.char-preview-section { margin-top: 24px; }
.char-preview-section h3 { font-size: 15px; font-weight: 700; margin-bottom: 12px; color: var(--ink); }
.char-preview-grid { display: flex; gap: 12px; flex-wrap: wrap; }
.char-preview-card { display: flex; align-items: center; gap: 8px; background: var(--soft); border-radius: 12px; padding: 8px 14px; border: 1px solid var(--line); }
.char-avatar { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--card); border: 2px solid var(--char-color, var(--primary)); overflow: hidden; flex-shrink: 0; }
.char-name { font-size: 13px; font-weight: 600; white-space: nowrap; }

/* adopt tab — character selection grid */
.char-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 14px; margin: 16px 0; }
.char-card { background: var(--card); border: 2px solid var(--line); border-radius: var(--radius); padding: 18px 12px; text-align: center; cursor: pointer; transition: all .2s ease; position: relative; }
.char-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.char-card.active { border-color: var(--primary); background: var(--soft); box-shadow: 0 0 0 3px rgba(251,146,60,.2); }
.char-card.locked { opacity: 0.55; cursor: not-allowed; }
.char-card.locked:hover { transform: none; border-color: var(--line); }
.char-card.claimed { background: #F8FAFC; }
.card-claimed-badge { position: absolute; top: 8px; right: 8px; font-size: 11px; background: #E0F2FE; color: #0369A1; border-radius: 999px; padding: 1px 8px; }
.card-avatar { width: 64px; height: 64px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--soft); border: 2px solid var(--char-color, var(--primary)); margin: 0 auto 10px; overflow: hidden; }
.card-name { font-size: 14px; font-weight: 700; }
.card-active-badge { display: inline-block; background: var(--primary); color: #fff; font-size: 10px; font-weight: 700; padding: 2px 8px; border-radius: 999px; margin-top: 6px; }
.card-lock { position: absolute; top: 8px; right: 8px; width: 22px; height: 22px; background: var(--card); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--muted); }

/* adopt tab — marketing header */
.adopt-header { text-align: center; margin-bottom: 6px; }
.adopt-header h2 { margin-bottom: 4px; }
.adopt-sub { color: var(--muted); font-size: 14px; margin-bottom: 0; }

/* upgrade banner — shown when free user at limit */
.upgrade-banner { margin: 14px 0 18px; animation: fadeUp .35s ease; }
.upgrade-banner-inner {
  display: flex; align-items: center; gap: 16px;
  background: linear-gradient(135deg, #FFF7ED, #FEF3C7);
  border: 1.5px solid #FBBF24; border-radius: var(--radius);
  padding: 14px 18px; flex-wrap: wrap;
}
.upgrade-banner-text { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 180px; }
.upgrade-banner-text strong { font-size: 15px; color: #92400E; }
.upgrade-banner-text span { font-size: 13px; color: #B45309; }
.upgrade-banner .btn { white-space: nowrap; background: #F59E0B; color: #fff; border-color: #F59E0B; flex-shrink: 0; }
.upgrade-banner .btn:hover { background: #D97706; border-color: #D97706; }

/* locked card — premium look (not just grayed out) */
.char-card.locked {
  opacity: 1; cursor: pointer; position: relative; overflow: hidden;
  background: linear-gradient(145deg, #FFFBEB, #FEF3C7);
  border-color: #FCD34D;
}
.char-card.locked:hover {
  transform: translateY(-3px); box-shadow: 0 6px 20px rgba(251,191,36,.25);
  border-color: #FBBF24;
}
.char-card.locked::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,.35) 50%, transparent 60%);
  transform: translateX(-100%); transition: transform .55s ease;
  pointer-events: none;
}
.char-card.locked:hover::after { transform: translateX(100%); }

/* PRO badge on locked cards */
.card-pro-badge {
  position: absolute; top: 8px; right: 8px; z-index: 2;
  background: linear-gradient(135deg, #F59E0B, #D97706);
  color: #fff; font-size: 10px; font-weight: 800; letter-spacing: .5px;
  padding: 2px 7px; border-radius: 999px; line-height: 1.4;
}

/* lock overlay with CTA text */
.card-lock-overlay {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(217,119,6,.12));
  padding: 28px 8px 10px; display: flex; align-items: center; justify-content: center; gap: 4px;
  color: #B45309; font-size: 12px; font-weight: 700; z-index: 1;
}
.card-lock-overlay svg { flex-shrink: 0; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* 信息页 / 文章排版（隐私/条款/FAQ/博客/联系） */
.legal { max-width: 760px; margin: 0 auto; padding: 30px 0 50px; }
.legal .back { display: inline-block; color: var(--primary-d); font-size: 14px; margin-bottom: 18px; font-weight: 600; }
.legal .back:hover { text-decoration: underline; }
.legal h1 { font-size: 30px; margin: 0 0 6px; letter-spacing: -0.3px; }
.legal .updated { color: var(--muted); font-size: 13px; margin: 0 0 24px; }
.legal h2 { font-size: 19px; margin: 28px 0 10px; }
.legal p { color: var(--ink); }
.legal ul { color: var(--muted); padding-left: 20px; }
.legal ul li { margin: 6px 0; }
.legal .lead { color: var(--muted); font-size: 16px; }
.faq-list .qa { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin: 12px 0; box-shadow: var(--shadow); }
.faq-list .qa h3 { margin: 0 0 6px; font-size: 16px; }
.faq-list .qa p { margin: 0; color: var(--muted); font-size: 14px; }
.post { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin: 16px 0; box-shadow: var(--shadow); }
.post h2 { margin-top: 0; font-size: 20px; }
.post p { color: var(--muted); margin: 0; }
.contact-form { display: flex; flex-direction: column; gap: 12px; max-width: 460px; margin: 14px 0; }
.contact-form textarea { min-height: 120px; }
.mail { color: var(--primary-d); font-weight: 600; word-break: break-all; }

/* 页脚导航（全站） */
.site-footer { text-align: center; border-top: 1px solid var(--line); margin-top: 40px; padding: 28px 20px; background: var(--card); }
.foot-links { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin-bottom: 10px; }
.foot-links a { color: var(--muted); font-size: 14px; }
.foot-links a:hover { color: var(--primary-d); }
.site-footer .copy { color: var(--muted); font-size: 13px; margin: 0; }

/* ---------- 响应式 / 移动端 ---------- */
@media (max-width: 720px) {
  .cards, .stats { grid-template-columns: 1fr; }
  .hero { padding: 40px 0 28px; }
  .hero h1 { font-size: 30px; }
  .row { flex-direction: column; align-items: stretch; }
  .row > div { width: 100%; }
  .bar { flex-wrap: wrap; }
  .topuser { width: 100%; justify-content: flex-end; }
}
@media (max-width: 480px) {
  .container { padding: 0 14px; }
  .hero { padding: 32px 0 20px; }
  .hero h1 { font-size: 25px; }
  .hero p { font-size: 15px; }
  .who-email { display: none; }
  .tabs { gap: 6px; }
  .tabs button { flex: 1 1 auto; text-align: center; padding: 9px 10px; }
  .panel { padding: 18px; }
  input, select, textarea, .btn { font-size: 16px; } /* 防止 iOS 聚焦缩放 */
  .btn { padding: 12px 18px; }
  .theme-btn { width: 42px; height: 42px; }
  .auth-wrap { margin: 30px auto; padding: 22px; }
  .plans { grid-template-columns: 1fr; }
  .legal h1 { font-size: 25px; }
  .foot-links { gap: 12px; }
}

/* ---------- 个人中心（我的 tab） ---------- */
.me-card { border-radius: var(--radius); padding: 22px 24px; margin-bottom: 22px; border: 1px solid var(--line); box-shadow: var(--shadow); }
.me-card.mem-paid { background: linear-gradient(135deg, #FFF1E0, #FEF3C7); border-color: #FBBF24; }
.me-card.mem-free { background: linear-gradient(135deg, var(--soft), var(--card)); }
.mem-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.mem-plan { font-size: 24px; font-weight: 800; color: var(--ink); }
.mem-badge { font-size: 12px; font-weight: 800; padding: 5px 14px; border-radius: 999px; background: var(--primary); color: #fff; letter-spacing: .5px; }
.mem-card.mem-free .mem-badge { background: var(--muted); }
.mem-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; }
.kv { display: flex; flex-direction: column; gap: 3px; }
.kv span { font-size: 12px; color: var(--muted); }
.kv b { font-size: 15px; color: var(--ink); font-weight: 700; }
.me-section { margin-bottom: 24px; }
.me-section h3 { font-size: 16px; font-weight: 800; margin: 0 0 12px; color: var(--ink); }
.me-unlock-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; background: var(--soft); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin-bottom: 12px; flex-wrap: wrap; }
.me-unlock-row .label { color: var(--muted); font-size: 13px; }
.me-benefits { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 8px; }
.me-benefits li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--ink); }
.me-benefits li svg { flex: none; color: var(--primary); }
.me-account-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.me-account-row:last-child { border-bottom: 0; }
.me-account-row .label { font-size: 14px; color: var(--muted); }
.me-account-row .val { font-size: 14px; font-weight: 600; color: var(--ink); display: flex; align-items: center; gap: 8px; }
.me-token { font-family: ui-monospace, Menlo, monospace; font-size: 12px; color: var(--muted); background: var(--soft); padding: 3px 8px; border-radius: 8px; word-break: break-all; max-width: 220px; display: inline-block; }
.me-billing-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
.btn.me-danger { background: transparent; color: #C0392B; border: 1px solid #E5B7B0; }
.btn.me-danger:hover { background: #FCEEEC; }

@media (max-width: 480px) {
  .mem-plan { font-size: 20px; }
  .me-token { max-width: 140px; }
}