/* ===== 用户端设计令牌（ui-ux-pro-max: AI-Native UI）===== */
:root {
  --color-primary: #7C3AED;
  --color-on-primary: #FFFFFF;
  --color-secondary: #6366F1;
  --color-accent: #EC4899;
  --color-on-accent: #000000;
  --color-background: #FAF5FF;
  --color-foreground: #0F172A;
  --color-card: #FFFFFF;
  --color-card-foreground: #0F172A;
  --color-muted: #F7F3FD;
  --color-muted-foreground: #475569;
  --color-border: #EFE7FC;
  --color-destructive: #DC2626;
  --color-ring: #7C3AED;
  --gradient-main: linear-gradient(135deg, #7C3AED, #EC4899);
  --radius: 14px;
  --shadow-md: 0 4px 6px rgba(124, 58, 237, .07);
  --shadow-lg: 0 10px 24px rgba(124, 58, 237, .12);
  --font: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
}
[data-theme="dark"] {
  --color-background: #0F0B1E;
  --color-foreground: #F5F3FF;
  --color-card: #1A1430;
  --color-card-foreground: #F5F3FF;
  --color-muted: #241C3F;
  --color-muted-foreground: #A29BC0;
  --color-border: #2E2550;
  --shadow-md: 0 4px 6px rgba(0,0,0,.4);
  --shadow-lg: 0 10px 24px rgba(0,0,0,.5);
}

* { box-sizing: border-box; }
/* 触屏优化：禁用双击缩放手势（快速连点不触发页面缩放），去掉点按高亮块 */
a, button, input, select, textarea, label, .btn { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); background: var(--color-background);
  color: var(--color-foreground); line-height: 1.6; font-size: 16px;
}
a { color: var(--color-primary); text-decoration: none; }
button { font-family: var(--font); }
.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* 顶栏 */
.topbar { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--color-card) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); }
.topbar-inner { display: flex; align-items: center; gap: 18px; height: 60px; }
.logo { font-weight: 800; font-size: 18px; background: var(--gradient-main); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav { display: flex; gap: 4px; margin-left: 8px; }
.nav a { padding: 8px 14px; border-radius: 10px; color: var(--color-muted-foreground); font-weight: 500; }
.nav a.active, .nav a:hover { color: var(--color-primary); background: var(--color-muted); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.balance-chip { background: var(--color-muted); border: 1px solid var(--color-border); padding: 6px 12px; border-radius: 999px; font-weight: 600; font-size: 14px; }
.balance-chip b { color: var(--color-primary); }
#hamburger { display: none; background: none; border: 1px solid var(--color-border); border-radius: 10px; padding: 8px 10px; cursor: pointer; color: var(--color-foreground); }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: none; cursor: pointer; border-radius: 12px; padding: 12px 22px; font-size: 16px; font-weight: 600; transition: all .2s ease; min-height: 44px; }
.btn-primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-accent { background: var(--color-accent); color: var(--color-on-accent); }
.btn-accent:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-ghost { background: transparent; border: 1.5px solid var(--color-border); color: var(--color-foreground); }
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-danger { background: var(--color-destructive); color: #fff; }
.btn-danger:hover { filter: brightness(1.08); }
.btn-sm { padding: 7px 14px; min-height: 34px; font-size: 14px; border-radius: 9px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }
.btn-block { width: 100%; }
.cursor { cursor: pointer; }

/* 卡片与表单 */
.card { background: var(--color-card); color: var(--color-card-foreground); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-md); }
.input, textarea.input, select.input { width: 100%; padding: 12px 14px; border: 1px solid var(--color-border); border-radius: 10px; font-size: 16px; font-family: var(--font); background: var(--color-background); color: var(--color-foreground); transition: border-color .2s, box-shadow .2s; }
.input:focus { outline: none; border-color: var(--color-ring); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-ring) 18%, transparent); }
label.field { display: block; margin-bottom: 14px; font-weight: 600; font-size: 14px; color: var(--color-muted-foreground); }
label.field .input { margin-top: 6px; font-weight: 400; color: var(--color-foreground); }

/* 分辨率三选一 */
.reso-group { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 6px; }
.reso { position: relative; border: 1.5px solid var(--color-border); border-radius: 12px; padding: 12px 10px; text-align: center; cursor: pointer; transition: all .2s; }
.reso input { position: absolute; opacity: 0; }
.reso .r-name { font-weight: 700; font-size: 15px; }
.reso .r-price { font-size: 12px; color: var(--color-muted-foreground); margin-top: 2px; }
.reso.sel { border-color: var(--color-primary); background: color-mix(in srgb, var(--color-primary) 7%, var(--color-card)); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 15%, transparent); }
.reso.sel .r-name { color: var(--color-primary); }

/* 任务卡片 */
.task-card { margin-bottom: 16px; }
.task-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.task-head .tid { color: var(--color-muted-foreground); font-size: 13px; }
.chip { padding: 4px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; }
.chip-running { background: color-mix(in srgb, var(--color-primary) 12%, transparent); color: var(--color-primary); }
.chip-completed { background: color-mix(in srgb, #16A34A 14%, transparent); color: #16A34A; }
.chip-failed { background: color-mix(in srgb, var(--color-destructive) 12%, transparent); color: var(--color-destructive); }
.chip-pending, .chip-canceled { background: var(--color-muted); color: var(--color-muted-foreground); }
.progress-wrap { margin: 14px 0 8px; }
.progress-bar { height: 8px; border-radius: 999px; background: var(--color-muted); overflow: hidden; }
.progress-fill { height: 100%; border-radius: 999px; background: var(--gradient-main); transition: width .6s ease; }
.steps { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 10px; }
.step { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--color-muted-foreground); }
.step .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-border); flex: none; }
.step.done .dot { background: var(--color-secondary); }
.step.doing .dot { background: var(--color-accent); animation: pulse 1.2s ease-in-out infinite; }
.step.doing { color: var(--color-accent); font-weight: 600; }
.step.done { color: var(--color-foreground); }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .45; transform: scale(.8); } }
.typing { display: inline-flex; gap: 4px; align-items: center; }
.typing i { width: 5px; height: 5px; border-radius: 50%; background: var(--color-primary); animation: pulse 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .2s; } .typing i:nth-child(3) { animation-delay: .4s; }
.task-result video, .task-result img { width: 100%; border-radius: 12px; margin-top: 12px; background: #0F0B1E; }
.task-meta { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13.5px; color: var(--color-muted-foreground); margin-top: 10px; }
.task-meta b { color: var(--color-foreground); }
.err-text { color: var(--color-destructive); font-size: 14px; margin-top: 8px; }
.task-media { display: flex; align-items: center; justify-content: center; gap: 4px; margin-top: 8px; cursor: pointer; }
.tm-item { position: relative; flex: 1 1 0; min-width: 0; max-width: 175px; }
.tm-item img { width: 100%; height: auto; aspect-ratio: 9 / 16; object-fit: cover; border-radius: 8px; display: block; border: 1px solid var(--color-border); }
.tm-item:hover img { border-color: var(--color-primary); }
.tm-tag { position: absolute; left: 4px; bottom: 4px; background: rgba(10,6,26,.7); color: #fff; font-size: 10.5px; padding: 2px 6px; border-radius: 999px; pointer-events: none; }
.tm-arrow { flex: none; color: var(--color-primary); display: flex; align-items: center; justify-content: center; width: 20px; }
.tm-arrow svg { width: 20px; height: 20px; }
/* 桌面端限制单个缩略图宽度，避免卡片过高 */
@media (min-width: 769px) {
  .tm-item { max-width: 150px; }
}

/* 落地页 */
.hero { padding: 72px 0 48px; text-align: center; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.25; margin: 0 0 16px; }
.hero h1 .grad { background: var(--gradient-main); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { color: var(--color-muted-foreground); font-size: 18px; max-width: 640px; margin: 0 auto 28px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.section { padding: 48px 0; }
.section h2 { text-align: center; font-size: 26px; margin: 0 0 30px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feat .f-icon { width: 42px; height: 42px; border-radius: 12px; background: var(--gradient-main); display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.feat .f-icon svg { width: 22px; height: 22px; stroke: #fff; }
.feat h3 { margin: 0 0 6px; font-size: 17px; }
.feat p { margin: 0; color: var(--color-muted-foreground); font-size: 14.5px; }
.flow-steps { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; }
.flow-step { text-align: center; padding: 14px 6px; border-radius: 12px; background: var(--color-card); border: 1px solid var(--color-border); }
.flow-step .n { width: 26px; height: 26px; margin: 0 auto 8px; border-radius: 50%; background: var(--gradient-main); color: #fff; font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 13px; }
.flow-step .t { font-size: 12.5px; color: var(--color-muted-foreground); }
.price-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.price-table th, .price-table td { padding: 12px 14px; border-bottom: 1px solid var(--color-border); text-align: left; font-size: 14.5px; }
.price-table th { color: var(--color-muted-foreground); font-weight: 600; }
.price-table .num { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--color-primary); }
.testi { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.testi .card p { font-size: 14.5px; }
.testi .who { display: flex; align-items: center; gap: 10px; margin-top: 14px; font-size: 13.5px; color: var(--color-muted-foreground); }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--gradient-main); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; flex: none; }
.cta-band { background: var(--gradient-main); border-radius: 20px; padding: 44px 24px; text-align: center; color: #fff; }
.cta-band h2 { color: #fff; margin: 0 0 8px; }
.notice-18 { font-size: 12.5px; color: var(--color-muted-foreground); }
.footer { padding: 30px 0; text-align: center; color: var(--color-muted-foreground); font-size: 13px; }

/* 认证页 */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card { width: 100%; max-width: 400px; }
.auth-card h1 { font-size: 22px; margin: 0 0 20px; text-align: center; }
.auth-card .hint { font-size: 13px; color: var(--color-muted-foreground); margin-top: 14px; text-align: center; }
.form-err { color: var(--color-destructive); font-size: 14px; margin: 8px 0 0; min-height: 20px; }

/* 表格（钱包页） */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.tbl { width: 100%; border-collapse: collapse; min-width: 560px; }
.tbl th, .tbl td { padding: 10px 12px; border-bottom: 1px solid var(--color-border); text-align: left; font-size: 14px; white-space: nowrap; }
.tbl th { color: var(--color-muted-foreground); font-weight: 600; font-size: 13px; }
.tbl .num { font-variant-numeric: tabular-nums; }
.amount-pos { color: #16A34A; font-weight: 600; }
.amount-neg { color: var(--color-foreground); }

/* 教程：获取抖音分享链接 */
.tut-toggle { display: inline-block; background: none; border: none; padding: 0; margin: -6px 0 10px; color: var(--color-primary); cursor: pointer; font-size: 13px; font-family: inherit; }
.tut-toggle:hover { text-decoration: underline; }
.tut { display: none; margin: 4px 0 14px; }
.tut.show { display: block; animation: tutIn .25s ease; }
@keyframes tutIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.tut-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.tut-card { background: var(--color-muted); border: 1px solid var(--color-border); border-radius: 12px; padding: 12px 10px; text-align: center; }
.tut-num { width: 24px; height: 24px; border-radius: 50%; background: var(--gradient-main); color: #fff; font-weight: 700; font-size: 13px; display: flex; align-items: center; justify-content: center; margin: 0 auto 8px; }
.tut-art { margin-bottom: 8px; }
.tut-art svg { width: 100%; max-width: 110px; height: auto; display: inline-block; }
.tut-text { font-size: 13px; color: var(--color-foreground); line-height: 1.55; }
.tut-note { margin-top: 10px; font-size: 12.5px; color: var(--color-muted-foreground); line-height: 1.6; }
.tut-gesture-line { margin-top: 8px; font-size: 12.5px; color: var(--color-primary); background: var(--color-muted); border-radius: 8px; padding: 8px 10px; line-height: 1.6; }
.tut-faq { margin-top: 12px; border-top: 1px dashed var(--color-border); padding-top: 10px; }
.tut-faq-item { margin-bottom: 8px; font-size: 13px; }
.tut-faq-q { font-weight: 600; color: var(--color-foreground); }
.tut-faq-a { color: var(--color-muted-foreground); line-height: 1.55; }
.tut-error-link { color: var(--color-primary); cursor: pointer; text-decoration: underline; }

/* 教程：获取抖音分享链接（手机端两列，示意图放大） */
@media (max-width: 640px) {
  .tut-grid { grid-template-columns: 1fr 1fr; }
  .tut-art svg { max-width: 100%; }
}
#toast { position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%); background: var(--color-foreground); color: var(--color-background); padding: 10px 18px; border-radius: 10px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .25s; z-index: 200; max-width: 86vw; }
#toast.show { opacity: .95; }

/* 自定义确认弹窗（替代原生 confirm） */
.ui-confirm-overlay { position: fixed; inset: 0; background: rgba(10,6,26,.55); z-index: 300; display: none; align-items: center; justify-content: center; padding: 20px; }
.ui-confirm-overlay.show { display: flex; }
.ui-confirm-card { background: var(--color-card); color: var(--color-card-foreground); border-radius: 14px; padding: 22px; width: 100%; max-width: 360px; box-shadow: var(--shadow-lg); }
.ui-confirm-title { margin: 0 0 8px; font-size: 17px; }
.ui-confirm-msg { margin: 0 0 18px; color: var(--color-muted-foreground); font-size: 14.5px; line-height: 1.6; }
.ui-confirm-actions { display: flex; gap: 10px; }
.ui-confirm-actions .btn { flex: 1; min-height: 44px; }
.btn-confirm { background: var(--color-primary); color: var(--color-on-primary); }
.btn-confirm:hover { filter: brightness(1.08); }

/* 模态 */
.modal-overlay { position: fixed; inset: 0; background: rgba(10, 6, 26, .55); display: none; align-items: flex-start; justify-content: center; padding: 40px 14px; z-index: 100; overflow-y: auto; }
.modal-overlay.show { display: flex; }
.modal { background: var(--color-card); color: var(--color-card-foreground); border-radius: 16px; padding: 24px; width: 100%; max-width: 720px; box-shadow: var(--shadow-lg); }
.modal h3 { margin: 0 0 14px; }
.modal .close-x { float: right; background: none; border: none; font-size: 20px; cursor: pointer; color: var(--color-muted-foreground); min-width: 40px; min-height: 40px; }

/* 响应式：768 / 375 */
@media (max-width: 900px) {
  .grid-3, .testi { grid-template-columns: 1fr 1fr; }
  .flow-steps { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 768px) {
  .container { padding: 0 14px; }
  #hamburger { display: inline-block; }
  .nav { display: none; position: absolute; top: 60px; left: 0; right: 0; background: var(--color-card); border-bottom: 1px solid var(--color-border); flex-direction: column; padding: 8px 14px 14px; box-shadow: var(--shadow-lg); }
  .nav.open { display: flex; }
  .nav a { padding: 12px 14px; font-size: 16px; }
  .grid-3, .grid-2, .testi { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 44px 0 30px; }
  .reso-group { grid-template-columns: 1fr; }
  .reso { display: flex; justify-content: space-between; align-items: center; text-align: left; padding: 12px 16px; }
  .reso .r-price { margin: 0; }
  .modal { padding: 18px; }
}
@media (max-width: 375px) {
  body { font-size: 15px; }
  .btn { padding: 11px 16px; }
  .task-meta { gap: 10px; font-size: 12.5px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}