/* ============ 电商取图复刻版 公共样式 ============ */
:root {
  --primary: #ff5000;
  --primary-hover: #e64800;
  --primary-soft: #fff3ec;
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1a202c;
  --text-2: #64748b;
  --border: #e5e7eb;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 4px 14px rgba(0,0,0,.05);
  --ok: #16a34a;
  --warn: #d97706;
  --err: #dc2626;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.6;
  display: flex; flex-direction: column; min-height: 100vh;
}
main { flex: 1; width: 100%; max-width: 1200px; margin: 0 auto; padding: 24px 20px 48px; }

/* ---------- 头部导航 ---------- */
.site-header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.header-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; height: 60px; display: flex; align-items: center; gap: 24px; }
.logo { font-size: 20px; font-weight: 800; color: var(--primary); text-decoration: none; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.logo .logo-badge { background: var(--primary); color: #fff; font-size: 11px; font-weight: 600; border-radius: 6px; padding: 1px 6px; }
.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-item { position: relative; }
.nav-link {
  display: inline-block; padding: 8px 14px; border-radius: 8px; color: var(--text);
  text-decoration: none; font-size: 14.5px; cursor: pointer; user-select: none; border: none; background: none; font-family: inherit;
}
.nav-link:hover { background: var(--primary-soft); color: var(--primary); }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-dropdown {
  display: none; position: absolute; top: 100%; left: 0; min-width: 200px; background: #fff;
  border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow); padding: 6px; z-index: 200;
}
.nav-item:hover .nav-dropdown, .nav-item.open .nav-dropdown { display: block; }
.nav-dropdown a { display: block; padding: 8px 12px; border-radius: 8px; color: var(--text); text-decoration: none; font-size: 14px; }
.nav-dropdown a:hover { background: var(--primary-soft); color: var(--primary); }
.header-right { display: flex; align-items: center; gap: 10px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 20px; border-radius: 9px; border: 1px solid transparent;
  font-size: 14.5px; font-weight: 600; cursor: pointer; font-family: inherit;
  transition: all .15s; text-decoration: none; line-height: 1.4; white-space: nowrap;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-outline { background: #fff; border-color: var(--border); color: var(--text); }
.btn-outline:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.btn-soft { background: var(--primary-soft); color: var(--primary); }
.btn-soft:hover:not(:disabled) { background: #ffe6d9; }
.btn-lg { padding: 13px 34px; font-size: 16px; border-radius: 11px; }
.btn-sm { padding: 5px 12px; font-size: 13px; border-radius: 7px; }
.btn-ok { background: var(--ok); color: #fff; }
.btn-ok:hover:not(:disabled) { background: #15803d; }

/* ---------- 卡片 / 表单 ---------- */
.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.card + .card { margin-top: 20px; }
.page-title { font-size: 26px; font-weight: 800; margin-bottom: 6px; }
.page-desc { color: var(--text-2); font-size: 14px; margin-bottom: 20px; }
.form-label { display: block; font-weight: 600; font-size: 14px; margin: 14px 0 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 9px;
  font-size: 14.5px; font-family: inherit; background: #fff; color: var(--text); outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(255,80,0,.12); }
.form-textarea { min-height: 110px; resize: vertical; }
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row > .form-col { flex: 1; min-width: 160px; }
.form-hint { color: var(--text-2); font-size: 12.5px; margin-top: 5px; }
.checkbox { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; font-size: 14px; }
input[type="checkbox"], input[type="radio"] { accent-color: var(--primary); width: 16px; height: 16px; }

/* ---------- 上传区 ---------- */
.upload-zone {
  border: 2px dashed #d4d4d8; border-radius: var(--radius); background: #fafafa;
  padding: 42px 20px; text-align: center; cursor: pointer; transition: all .15s;
}
.upload-zone:hover, .upload-zone.dragover { border-color: var(--primary); background: var(--primary-soft); }
.upload-zone .uz-icon { font-size: 40px; margin-bottom: 8px; }
.upload-zone .uz-main { font-weight: 600; font-size: 15.5px; }
.upload-zone .uz-sub { color: var(--text-2); font-size: 13px; margin-top: 4px; }

/* ---------- 文件列表 / 结果网格 ---------- */
.file-list { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.file-item { display: flex; align-items: center; gap: 12px; padding: 10px 14px; background: #fff; border: 1px solid var(--border); border-radius: 10px; }
.file-item .fi-thumb { width: 46px; height: 46px; object-fit: cover; border-radius: 7px; background: #f1f1f4; flex-shrink: 0; }
.file-item .fi-name { flex: 1; font-size: 13.5px; word-break: break-all; min-width: 0; }
.file-item .fi-meta { color: var(--text-2); font-size: 12px; white-space: nowrap; }

.grid-results { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 14px; }
.result-card { background: #fff; border: 1px solid var(--border); border-radius: 11px; overflow: hidden; position: relative; transition: box-shadow .15s; }
.result-card:hover { box-shadow: var(--shadow); }
.result-card.selected { outline: 3px solid var(--primary); outline-offset: -3px; }
.result-card img, .result-card video { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; background: #f1f1f4; cursor: zoom-in; }
.result-card .rc-check { position: absolute; top: 8px; left: 8px; width: 20px; height: 20px; cursor: pointer; }
.result-card .rc-badge { position: absolute; top: 8px; right: 8px; background: rgba(0,0,0,.55); color: #fff; font-size: 11px; padding: 1px 7px; border-radius: 20px; }
.result-card .rc-foot { display: flex; align-items: center; justify-content: space-between; padding: 7px 10px; font-size: 12px; color: var(--text-2); }

/* ---------- Toast / Modal / Loading ---------- */
.toast-wrap { position: fixed; top: 74px; left: 50%; transform: translateX(-50%); z-index: 9999; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast { background: rgba(26,32,44,.92); color: #fff; padding: 9px 18px; border-radius: 9px; font-size: 14px; animation: toastIn .25s; box-shadow: var(--shadow); }
.toast.ok { background: rgba(22,163,74,.95); }
.toast.err { background: rgba(220,38,38,.95); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

.modal-mask { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 1000; align-items: center; justify-content: center; padding: 20px; }
.modal-mask.show { display: flex; }
.modal-box { background: #fff; border-radius: 14px; max-width: 520px; width: 100%; padding: 24px; max-height: 85vh; overflow: auto; }
.modal-box h3 { margin-bottom: 12px; }
.modal-close { float: right; border: none; background: none; font-size: 22px; cursor: pointer; color: var(--text-2); line-height: 1; }

.lightbox { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.85); z-index: 1200; align-items: center; justify-content: center; cursor: zoom-out; }
.lightbox.show { display: flex; }
.lightbox img, .lightbox video { max-width: 92vw; max-height: 92vh; border-radius: 6px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #fff; border-top: 1px solid var(--border); margin-top: auto; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 18px 20px; color: var(--text-2); font-size: 13px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-inner a { color: var(--text-2); text-decoration: none; }
.footer-inner a:hover { color: var(--primary); }

/* ---------- 首页 ---------- */
.hero { background: linear-gradient(135deg, #fff7f2 0%, #fff 55%); border-bottom: 1px solid var(--border); }
.hero-inner { max-width: 1200px; margin: 0 auto; padding: 44px 20px; text-align: center; }
.hero h1 { font-size: 32px; font-weight: 800; }
.hero h1 em { color: var(--primary); font-style: normal; }
.hero p { color: var(--text-2); margin-top: 10px; font-size: 15.5px; }
.hero-cta { margin-top: 22px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.platform-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-top: 26px; }
.platform-card { background: #fff; border: 1px solid var(--border); border-radius: 11px; padding: 14px; text-align: center; text-decoration: none; color: var(--text); font-size: 14px; font-weight: 600; transition: all .15s; }
.platform-card:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow); }
.platform-card .pc-icon { font-size: 24px; display: block; margin-bottom: 6px; }
.tool-section { margin-top: 34px; }
.tool-section h2 { font-size: 20px; font-weight: 800; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.tool-section .sec-desc { color: var(--text-2); font-size: 13.5px; margin-bottom: 16px; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.tool-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 18px; text-decoration: none; color: var(--text); transition: all .15s; display: block; }
.tool-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.tool-card .tc-icon { width: 42px; height: 42px; border-radius: 10px; background: var(--primary-soft); display: flex; align-items: center; justify-content: center; font-size: 21px; margin-bottom: 10px; }
.tool-card .tc-name { font-weight: 700; font-size: 15px; }
.tool-card .tc-desc { color: var(--text-2); font-size: 12.5px; margin-top: 3px; }
.tool-card .tc-tag { display: inline-block; margin-top: 8px; font-size: 11px; color: var(--primary); background: var(--primary-soft); border-radius: 20px; padding: 1px 9px; }
.tool-card .tc-tag.hot { color: var(--err); background: #fef2f2; }

/* ---------- 素材提取页 ---------- */
.extract-hero { text-align: center; padding: 10px 0 18px; }
.extract-hero h1 { font-size: 27px; font-weight: 800; }
.extract-hero h1 .hl { color: var(--primary); }
.extract-box { background: #fff; border-radius: 16px; box-shadow: var(--shadow); padding: 26px; max-width: 760px; margin: 0 auto; }
.extract-textarea { width: 100%; min-height: 120px; border: 2px solid var(--border); border-radius: 12px; padding: 14px; font-size: 14.5px; font-family: inherit; resize: vertical; outline: none; }
.extract-textarea:focus { border-color: var(--primary); }
.extract-actions { display: flex; gap: 10px; margin-top: 14px; align-items: center; flex-wrap: wrap; }
.extract-tip { color: var(--text-2); font-size: 12.5px; margin-top: 12px; }
.result-toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 22px 0 14px; }
.result-toolbar .rt-info { color: var(--text-2); font-size: 13.5px; margin-right: auto; }
.group-title { font-size: 16.5px; font-weight: 800; margin: 26px 0 12px; display: flex; align-items: center; gap: 10px; }
.group-title .g-count { color: var(--text-2); font-size: 13px; font-weight: 400; }
.group-title .g-actions { margin-left: auto; display: flex; gap: 8px; }

/* ---------- 工具页通用 ---------- */
.tool-layout { display: grid; grid-template-columns: 1fr; gap: 20px; max-width: 900px; margin: 0 auto; }
.preview-area { background: repeating-conic-gradient(#f3f4f6 0% 25%, #fff 0% 50%) 50% / 20px 20px; border: 1px solid var(--border); border-radius: 11px; display: flex; align-items: center; justify-content: center; overflow: auto; min-height: 260px; padding: 14px; }
.preview-area img, .preview-area video { max-width: 100%; max-height: 480px; }
.preview-area canvas { max-width: 100%; }
.settings-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0 16px; }
.action-bar { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.calc-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.calc-table th, .calc-table td { border: 1px solid var(--border); padding: 8px 10px; text-align: right; }
.calc-table th { background: #f9fafb; text-align: center; font-weight: 600; }
.calc-table td:first-child, .calc-table th:first-child { text-align: left; }
.kv-result { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 14px; }
.kv-chip { background: var(--primary-soft); border-radius: 10px; padding: 10px 16px; min-width: 120px; }
.kv-chip .k { font-size: 12px; color: var(--text-2); }
.kv-chip .v { font-size: 18px; font-weight: 800; color: var(--primary); }
.notice { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; border-radius: 10px; padding: 12px 16px; font-size: 13.5px; margin: 14px 0; }
.notice.info { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }

/* ---------- 登录弹窗 ---------- */
.auth-tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.auth-tab { flex: 1; padding: 8px 4px; text-align: center; border-radius: 8px; cursor: pointer; background: #f3f4f6; font-size: 13.5px; color: var(--text-2); user-select: none; }
.auth-tab:hover { color: var(--primary); }
.auth-tab.active { background: var(--primary); color: #fff; font-weight: 600; }
.auth-pane { display: none; }
.auth-pane.show { display: block; }
#scanQr { display: block; margin: 0 auto; }

@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.mobile-open { display: flex; position: absolute; top: 60px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 10px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
  .hero h1 { font-size: 24px; }
}