:root {
  --bg: #f4f5fa;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e3e8f0;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-soft: #eef2ff;
  --success: #059669;
  --success-soft: #ecfdf5;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --warning: #b45309;
  --warning-soft: #fffbeb;
  --radius: 14px;
  --shadow: 0 12px 32px rgba(15, 23, 42, 0.07);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
h1, h2, h3, h4 { margin: 0; line-height: 1.35; font-weight: 700; }
p { margin: 0; }
code { font-family: var(--mono); }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 22px; }
.main { padding-top: 30px; padding-bottom: 60px; min-height: calc(100vh - 170px); }

/* ---------------- 顶部导航 ---------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; gap: 26px; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; color: var(--text); letter-spacing: .3px; white-space: nowrap; }
.brand:hover { color: var(--text); }
.brand-mark {
  width: 32px; height: 32px; border-radius: 10px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #6366f1, #8b5cf6 55%, #4338ca);
  color: #fff; font-size: 16px; font-weight: 800;
  box-shadow: 0 6px 16px rgba(79, 70, 229, .35);
}
.nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav a {
  padding: 8px 12px; border-radius: 9px; color: #475569; font-weight: 500; white-space: nowrap;
}
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a.active { background: var(--primary-soft); color: var(--primary-dark); font-weight: 600; }
.nav .nav-cta { background: var(--primary); color: #fff; margin-left: 6px; }
.nav .nav-cta:hover { background: var(--primary-dark); color: #fff; }
.nav .nav-admin { color: var(--primary); }
.user-chip { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.avatar {
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 700; font-size: 14px;
  background: var(--primary-soft); color: var(--primary-dark);
}
.user-name { font-weight: 600; font-size: 13px; color: #334155; display: flex; align-items: center; gap: 6px; }
.role-tag { font-style: normal; font-size: 11px; background: #fef3c7; color: #92400e; padding: 1px 7px; border-radius: 20px; font-weight: 600; }
.user-chip > a { font-size: 13px; color: var(--muted); }
.user-chip > a:hover { color: var(--primary); }
.user-chip form { margin: 0; }
.link-btn { background: none; border: 0; padding: 0; font: inherit; font-size: 13px; color: var(--muted); cursor: pointer; }
.link-btn:hover { color: var(--danger); }

/* ---------------- 通用组件 ---------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 1px 2px rgba(15, 23, 42, .03);
}
.card-pad { padding: 22px; }
.card + .card { margin-top: 20px; }
.card-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  padding: 18px 22px; border-bottom: 1px solid var(--border);
}
.card-head h3 { font-size: 15px; }
.card-head p { color: var(--muted); font-size: 12.5px; margin-top: 3px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border-radius: 10px; border: 1px solid transparent;
  font-size: 13.5px; font-weight: 600; cursor: pointer; font-family: inherit;
  background: var(--surface); color: var(--text); transition: all .15s ease;
  line-height: 1.4;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: linear-gradient(135deg, #6366f1, #4f46e5); color: #fff; box-shadow: 0 6px 16px rgba(79,70,229,.25); }
.btn-primary:hover { color: #fff; box-shadow: 0 9px 22px rgba(79,70,229,.32); }
.btn-ghost { border-color: var(--border); color: #334155; background: #fff; }
.btn-ghost:hover { border-color: #c7d2fe; color: var(--primary-dark); background: var(--primary-soft); }
.btn-danger { background: var(--danger-soft); color: var(--danger); border-color: #fecaca; }
.btn-danger:hover { background: #fee2e2; color: #b91c1c; }
.btn-sm { padding: 5px 10px; font-size: 12px; border-radius: 8px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 9px; border-radius: 20px; font-size: 11.5px; font-weight: 600; white-space: nowrap;
}
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-muted { background: #f1f5f9; color: var(--muted); }
.badge-info { background: var(--primary-soft); color: var(--primary-dark); }

.alert {
  padding: 12px 16px; border-radius: 11px; margin-bottom: 16px; font-size: 13.5px;
  border: 1px solid transparent; display: flex; gap: 8px; align-items: flex-start;
}
.alert-success { background: var(--success-soft); border-color: #a7f3d0; color: #065f46; }
.alert-error { background: var(--danger-soft); border-color: #fecaca; color: #991b1b; }
.alert-warning { background: var(--warning-soft); border-color: #fde68a; color: #92400e; }
.alert-info { background: var(--primary-soft); border-color: #c7d2fe; color: #3730a3; }

/* ---------------- 表单 ---------------- */
.form-grid { display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; }
.field label { display: block; font-size: 12.5px; font-weight: 600; color: #475569; margin-bottom: 6px; }
.input, select.input, textarea.input {
  width: 100%; padding: 10px 13px; border: 1px solid var(--border); border-radius: 10px;
  background: #fff; font: inherit; font-size: 13.5px; color: var(--text); outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.input:focus { border-color: #a5b4fc; box-shadow: 0 0 0 4px rgba(99, 102, 241, .12); }
textarea.input { min-height: 84px; resize: vertical; }
.hint { font-size: 12px; color: var(--muted); margin-top: 5px; }
.form-actions { display: flex; align-items: center; gap: 10px; margin-top: 4px; }

/* ---------------- 表格 ---------------- */
.table-wrap { overflow-x: auto; }
table.table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.table th {
  text-align: left; padding: 11px 16px; background: var(--surface-2); color: var(--muted);
  font-size: 11.5px; font-weight: 600; letter-spacing: .4px; text-transform: uppercase;
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
table.table td { padding: 13px 16px; border-bottom: 1px solid #eef2f7; vertical-align: middle; }
table.table tr:last-child td { border-bottom: 0; }
table.table tr:hover td { background: #fafbff; }
.cell-strong { font-weight: 600; color: var(--text); }
.cell-muted { color: var(--muted); font-size: 12px; }
.cell-mono { font-family: var(--mono); font-size: 12.5px; letter-spacing: .5px; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.inline-form { display: inline; margin: 0; }

/* ---------------- 统计 ---------------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 22px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.stat-label { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.stat-value { font-size: 26px; font-weight: 800; margin-top: 6px; letter-spacing: -.5px; }
.stat-value small { font-size: 13px; font-weight: 600; color: var(--muted); margin-left: 2px; }
.stat-icon { width: 24px; height: 24px; border-radius: 7px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); font-size: 13px; }

/* ---------------- 页面标题 ---------------- */
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head h1 { font-size: 26px; letter-spacing: -.4px; }
.page-head p { color: var(--muted); margin-top: 5px; font-size: 13.5px; }
.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------------- 首页 ---------------- */
.hero {
  background:
    radial-gradient(900px 420px at 12% 0%, rgba(139, 92, 246, .38), transparent 60%),
    radial-gradient(800px 380px at 95% 20%, rgba(56, 189, 248, .22), transparent 60%),
    linear-gradient(135deg, #171438, #271f5c 55%, #191436);
  color: #fff;
  padding: 74px 0 82px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 44px 44px; mask-image: radial-gradient(circle at 50% 25%, #000, transparent 78%);
  pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 46px; align-items: center; position: relative; z-index: 1; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); padding: 5px 12px; border-radius: 20px; font-size: 12px; color: #ddd6fe; margin-bottom: 20px; }
.hero h1 { font-size: 46px; line-height: 1.18; letter-spacing: -1px; }
.hero h1 span { background: linear-gradient(100deg, #a5b4fc, #c4b5fd 45%, #67e8f9); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { margin-top: 18px; color: #cbd5e1; font-size: 15.5px; max-width: 500px; }
.hero-actions { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }
.hero-actions .btn-ghost { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.2); color: #fff; }
.hero-actions .btn-ghost:hover { background: rgba(255,255,255,.16); color: #fff; }
.hero-note { margin-top: 18px; font-size: 12px; color: #94a3b8; display: flex; gap: 16px; flex-wrap: wrap; }
.hero-note span { display: inline-flex; align-items: center; gap: 5px; }
.hero-code {
  background: rgba(10, 8, 30, .72);
  border: 1px solid rgba(139, 92, 246, .35);
  border-radius: 16px;
  box-shadow: 0 30px 70px rgba(0,0,0,.45);
  overflow: hidden;
  backdrop-filter: blur(8px);
}
.window-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,.08); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #f87171; } .dot-y { background: #fbbf24; } .dot-g { background: #34d399; }
.window-title { margin-left: 8px; font-size: 12px; color: #94a3b8; font-family: var(--mono); }
.hero-code pre { margin: 0; padding: 20px 22px; font-family: var(--mono); font-size: 12.5px; line-height: 1.85; color: #cbd5e1; overflow-x: auto; }
.tok-key { color: #93c5fd; } .tok-str { color: #86efac; } .tok-fn { color: #c4b5fd; } .tok-com { color: #64748b; } .tok-num { color: #fca5a5; }

.section { padding: 64px 0; }
.section-title { text-align: center; margin-bottom: 40px; }
.section-title h2 { font-size: 30px; letter-spacing: -.6px; }
.section-title p { color: var(--muted); margin-top: 8px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.feature { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: all .2s; }
.feature:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #c7d2fe; }
.feature-icon { width: 42px; height: 42px; border-radius: 12px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-size: 18px; margin-bottom: 14px; }
.feature h3 { font-size: 15.5px; margin-bottom: 7px; }
.feature p { color: var(--muted); font-size: 13px; }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 18px; counter-reset: step; }
.step { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 22px 22px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; top: -14px; left: 20px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6); color: #fff;
  font-weight: 800; font-size: 12px; padding: 4px 10px; border-radius: 20px;
  box-shadow: 0 6px 14px rgba(99,102,241,.3);
}
.step h3 { font-size: 15px; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 13px; }

.landing-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: -46px; position: relative; z-index: 2; }
.landing-stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; box-shadow: var(--shadow); }
.landing-stat .num { font-size: 28px; font-weight: 800; letter-spacing: -.5px; color: var(--primary-dark); }
.landing-stat .txt { font-size: 12.5px; color: var(--muted); }

/* ---------------- 认证页 ---------------- */
.auth-wrap { max-width: 960px; margin: 10px auto 0; display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: stretch; }
.auth-card { padding: 34px; }
.auth-card h1 { font-size: 24px; }
.auth-card .sub { color: var(--muted); font-size: 13px; margin-top: 6px; margin-bottom: 24px; }
.auth-aside {
  border-radius: var(--radius); padding: 34px; color: #e2e8f0;
  background: radial-gradient(600px 300px at 100% 0%, rgba(139,92,246,.35), transparent 65%), linear-gradient(150deg, #171438, #241d52);
  display: flex; flex-direction: column; justify-content: center;
}
.auth-aside h3 { font-size: 19px; color: #fff; }
.auth-aside p { color: #a5b4fc; font-size: 13px; margin-top: 9px; }
.auth-aside ul { margin: 22px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.auth-aside li { display: flex; gap: 10px; font-size: 13px; color: #cbd5e1; }
.auth-aside .tick { color: #34d399; font-weight: 700; }
.auth-footer-note { text-align: center; font-size: 13px; color: var(--muted); margin-top: 18px; }

/* ---------------- 应用 / API 信息 ---------------- */
.app-grid { display: grid; gap: 18px; }
.app-card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.app-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 20px; border-bottom: 1px solid var(--border); background: linear-gradient(180deg, #fbfcff, #fff); }
.app-title { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 15px; }
.app-title .dot-live { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 3px rgba(34,197,94,.15); }
.app-meta { color: var(--muted); font-size: 12px; font-weight: 400; }
.app-body { padding: 18px 20px; display: grid; gap: 14px; }
.keyline { display: grid; grid-template-columns: 120px 1fr; align-items: center; gap: 12px; }
.keyline .k { font-size: 12px; color: var(--muted); font-weight: 600; }
.secret-box { display: flex; align-items: center; gap: 8px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 9px; padding: 8px 10px; min-width: 0; }
.secret-box code { flex: 1; font-size: 12px; word-break: break-all; color: #334155; }
.copy-btn { flex: 0 0 auto; border: 1px solid var(--border); background: #fff; border-radius: 7px; font-size: 11px; font-weight: 600; color: var(--muted); padding: 3px 8px; cursor: pointer; font-family: inherit; }
.copy-btn:hover { color: var(--primary); border-color: #c7d2fe; background: var(--primary-soft); }
.app-foot { padding: 13px 20px; border-top: 1px solid var(--border); background: var(--surface-2); display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.switch-form { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); }
.switch-form input[type=checkbox] { width: 15px; height: 15px; accent-color: var(--primary); }
.switch-form button { padding: 3px 8px; font-size: 11.5px; }

.empty { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty .icon { width: 56px; height: 56px; border-radius: 18px; background: var(--primary-soft); color: var(--primary); font-size: 24px; display: grid; place-items: center; margin: 0 auto 16px; }
.empty h3 { color: var(--text); font-size: 16px; margin-bottom: 6px; }
.empty p { font-size: 13px; max-width: 420px; margin: 0 auto 18px; }

/* ---------------- 文档 ---------------- */
.docs-layout { display: grid; grid-template-columns: 210px 1fr; gap: 34px; align-items: start; }
.docs-nav { position: sticky; top: 90px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; }
.docs-nav a { display: block; padding: 7px 11px; border-radius: 8px; color: #475569; font-size: 13px; }
.docs-nav a:hover { background: var(--surface-2); color: var(--text); }
.docs-nav .group { font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: #94a3b8; padding: 12px 11px 5px; font-weight: 700; }
.docs-body section { scroll-margin-top: 90px; margin-bottom: 42px; }
.docs-body h2 { font-size: 22px; margin-bottom: 12px; letter-spacing: -.3px; }
.docs-body h3 { font-size: 15.5px; margin: 24px 0 10px; }
.docs-body p { color: #475569; font-size: 13.5px; margin-bottom: 10px; }
.docs-body ul { margin: 0 0 12px; padding-left: 20px; color: #475569; font-size: 13.5px; }
.docs-body li { margin-bottom: 5px; }
.docs-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-top: 16px; }
.endpoint { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--border); font-family: var(--mono); font-size: 13px; margin: 12px 0; flex-wrap: wrap; }
.method { background: #dcfce7; color: #166534; padding: 2px 8px; border-radius: 6px; font-size: 11px; font-weight: 800; letter-spacing: .5px; }
.code-block { background: #0f172a; border-radius: 12px; overflow: hidden; margin: 14px 0; border: 1px solid #1e293b; }
.code-block pre { margin: 0; padding: 18px 20px; overflow-x: auto; color: #cbd5e1; font-family: var(--mono); font-size: 12.5px; line-height: 1.75; }
.code-head { display: flex; align-items: center; justify-content: space-between; padding: 9px 14px; background: #111c34; border-bottom: 1px solid #1e293b; }
.code-head span { color: #94a3b8; font-size: 11.5px; font-family: var(--mono); }
.code-head .copy-btn { background: #1e293b; border-color: #334155; color: #cbd5e1; }
.tabs { display: flex; gap: 5px; flex-wrap: wrap; padding: 6px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 11px; margin: 16px 0 0; }
.tab-btn { padding: 7px 14px; border: 0; border-radius: 8px; background: transparent; font-size: 12.5px; font-weight: 600; color: var(--muted); cursor: pointer; font-family: inherit; }
.tab-btn:hover { color: var(--text); }
.tab-btn.active { background: #fff; color: var(--primary-dark); box-shadow: 0 1px 3px rgba(15,23,42,.12); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.param-table code, .docs-body code { background: #f1f5f9; border: 1px solid #e2e8f0; padding: 1px 6px; border-radius: 5px; font-size: 12px; color: #4338ca; }
.docs-body .code-block code { background: none; border: 0; padding: 0; color: inherit; }
.callout { border-left: 3px solid var(--primary); background: var(--primary-soft); border-radius: 0 10px 10px 0; padding: 13px 18px; font-size: 13px; color: #3730a3; margin: 14px 0; }
.callout-warn { border-color: #f59e0b; background: var(--warning-soft); color: #92400e; }
.docs-download { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }

/* ---------------- 生成结果 ---------------- */
.codes-panel { background: linear-gradient(135deg, #eef2ff, #f5f3ff); border: 1px solid #c7d2fe; border-radius: var(--radius); padding: 20px 22px; margin-bottom: 22px; }
.codes-panel h3 { font-size: 15px; color: #3730a3; display: flex; align-items: center; gap: 8px; }
.codes-panel p { color: #4f46e5; font-size: 12.5px; margin-top: 4px; }
.codes-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 8px; margin-top: 14px; }
.code-item { display: flex; align-items: center; justify-content: space-between; gap: 8px; background: #fff; border: 1px solid #ddd6fe; border-radius: 8px; padding: 7px 10px; font-family: var(--mono); font-size: 12.5px; letter-spacing: .4px; }

/* ---------------- 页脚 ---------------- */
.footer { border-top: 1px solid var(--border); background: #fff; padding: 22px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--muted); font-size: 12.5px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--primary); }

/* ---------------- 响应式 ---------------- */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; gap: 34px; }
  .hero h1 { font-size: 36px; }
  .auth-wrap { grid-template-columns: 1fr; }
  .auth-aside { display: none; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { display: none; }
  .landing-stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .topbar-inner { height: auto; padding: 12px 0; flex-wrap: wrap; gap: 12px; }
  .nav { order: 3; width: 100%; overflow-x: auto; }
  .nav a { padding: 6px 9px; font-size: 12.5px; }
  .user-chip { margin-left: auto; }
  .page-head h1 { font-size: 22px; }
  .hero { padding: 52px 0 64px; }
  .hero h1 { font-size: 30px; }
  .landing-stats { grid-template-columns: 1fr; }
  .section { padding: 44px 0; }
  .main { padding-top: 20px; }
  .keyline { grid-template-columns: 1fr; gap: 4px; }
  .stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-value { font-size: 21px; }
  .codes-list { grid-template-columns: 1fr; }
}

/* ---------------- 付费注册 / 收银台 ---------------- */
.pay-plan {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  background: linear-gradient(135deg, #eef2ff, #f5f3ff 60%, #ffffff);
  border: 1px solid #c7d2fe; border-radius: 12px; padding: 16px 18px; margin-bottom: 20px;
}
.pay-plan-label { font-size: 12px; color: #6366f1; font-weight: 600; }
.pay-plan-price { font-size: 32px; font-weight: 800; color: var(--primary-dark); letter-spacing: -1px; line-height: 1.15; margin-top: 2px; }
.pay-plan-price span { font-size: 16px; font-weight: 700; margin-right: 2px; }
.pay-plan-side { text-align: right; }
.pay-plan-tag { display: inline-block; background: #fff; border: 1px solid #ddd6fe; color: var(--primary-dark); font-size: 11.5px; font-weight: 700; padding: 2px 9px; border-radius: 20px; }
.pay-plan-note { font-size: 12px; color: var(--muted); margin-top: 6px; }
.pay-tips { display: grid; gap: 3px; margin-top: 14px; }
.pay-tips span { font-size: 12px; color: var(--muted); position: relative; padding-left: 14px; }
.pay-tips span::before { content: "·"; position: absolute; left: 4px; color: var(--primary); font-weight: 800; }

.pay-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.pay-head h1 { font-size: 22px; }
.pay-head .sub { margin-bottom: 0; }

.pay-amount { text-align: center; padding: 6px 0 18px; border-bottom: 1px dashed var(--border); margin-bottom: 18px; }
.pay-amount-label { font-size: 12px; color: var(--muted); }
.pay-amount-value { font-size: 36px; font-weight: 800; letter-spacing: -1.2px; color: var(--text); line-height: 1.2; }
.pay-amount-value span { font-size: 18px; font-weight: 700; margin-right: 2px; }
.pay-countdown { font-size: 12px; color: var(--muted); margin-top: 6px; }
.pay-countdown strong { font-family: var(--mono); color: var(--warning); font-size: 13px; margin-left: 4px; }

.pay-summary { display: grid; gap: 9px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 11px; padding: 14px 16px; margin-bottom: 18px; }
.pay-summary-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 12.5px; color: var(--muted); }
.pay-summary-row code { font-family: var(--mono); font-size: 12px; color: #334155; word-break: break-all; text-align: right; }
.pay-summary-row strong { color: var(--text); font-size: 13px; }

.pay-channels { display: grid; gap: 10px; }
.channel-option {
  position: relative; display: flex; align-items: center; gap: 12px; cursor: pointer;
  border: 1px solid var(--border); border-radius: 12px; padding: 13px 14px; background: #fff;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.channel-option:hover { border-color: #c7d2fe; background: #fbfcff; }
.channel-option input { position: absolute; opacity: 0; pointer-events: none; }
.channel-logo {
  width: 38px; height: 38px; border-radius: 11px; flex: 0 0 auto;
  display: grid; place-items: center; font-size: 17px; font-weight: 800; color: #fff;
}
.channel-alipay { background: linear-gradient(135deg, #38a1ff, #1677ff); }
.channel-wxpay { background: linear-gradient(135deg, #34d399, #07c160); }
.channel-text { flex: 1; min-width: 0; display: grid; gap: 1px; }
.channel-text strong { font-size: 14px; color: var(--text); }
.channel-text em { font-style: normal; font-size: 12px; color: var(--muted); }
.channel-radio { flex: 0 0 auto; width: 18px; height: 18px; border-radius: 50%; border: 2px solid #cbd5e1; background: #fff; transition: all .15s; }
.channel-option input:checked ~ .channel-radio { border-color: var(--primary); background: radial-gradient(circle, var(--primary) 0 46%, #fff 48%); }
.channel-option input:checked ~ .channel-text strong { color: var(--primary-dark); }
.channel-option:has(input:checked) { border-color: #a5b4fc; box-shadow: 0 0 0 3px rgba(99, 102, 241, .12); background: #fbfbff; }
.channel-option input:focus-visible ~ .channel-radio { box-shadow: 0 0 0 4px rgba(99, 102, 241, .18); }

.pay-result { text-align: center; padding: 6px 0 4px; }
.pay-result h1 { font-size: 21px; margin-top: 14px; }
.pay-result .sub { margin-bottom: 0; }
.pay-result-icon {
  width: 62px; height: 62px; border-radius: 50%; margin: 0 auto;
  display: grid; place-items: center; font-size: 28px; font-weight: 800;
}
.pay-result-icon.is-success { background: var(--success-soft); color: var(--success); border: 1px solid #a7f3d0; }
.pay-result-icon.is-warning { background: var(--warning-soft); color: var(--warning); border: 1px solid #fde68a; }
.pay-result-icon.is-muted { background: #f1f5f9; color: var(--muted); border: 1px solid var(--border); }
.pay-result-icon.is-pending { background: var(--primary-soft); border: 1px solid #c7d2fe; }
.pay-result-actions { margin-top: 18px; }
.spinner {
  width: 26px; height: 26px; border-radius: 50%;
  border: 3px solid rgba(99, 102, 241, .22); border-top-color: var(--primary);
  animation: pay-spin .9s linear infinite;
}
@keyframes pay-spin { to { transform: rotate(360deg); } }

.filter-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.filter-row .input { padding: 6px 10px; font-size: 12.5px; width: auto; }
.filter-row input.input { width: 200px; }
.filter-row select.input { width: 130px; }

.channel-switch { display: grid; gap: 8px; padding-top: 4px; }
.switch-line { display: flex; align-items: center; gap: 8px; font-size: 13px; color: #475569; cursor: pointer; }
.switch-line input[type=checkbox] { width: 15px; height: 15px; accent-color: var(--primary); }

.pager { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 16px; border-top: 1px solid var(--border); }
.pager-info { font-size: 12.5px; color: var(--muted); }

@media (max-width: 720px) {
  .pay-plan-side { text-align: left; }
  .pay-amount-value { font-size: 30px; }
  .filter-row { width: 100%; }
  .filter-row input.input, .filter-row select.input { flex: 1 1 120px; width: auto; }
  .pay-summary-row { flex-direction: column; align-items: flex-start; gap: 2px; }
  .pay-summary-row code { text-align: left; }
}