/* ==========================================================================
   在线图片压缩工具 —— 全站样式
   设计基调：清爽、可信、工具感强。移动端优先，桌面端优雅扩展。
   ========================================================================== */

/* ---------- 设计令牌（浅色） ---------- */
:root,
html[data-theme="light"] {
  color-scheme: light;
  --color-primary: #4F46E5;
  --color-primary-dark: #4338CA;
  --color-primary-soft: #EEF2FF;
  --color-accent: #10B981;
  --color-accent-soft: #ECFDF5;
  --color-bg: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-text: #0F172A;
  --color-muted: #64748B;
  --color-border: #E2E8F0;
  --color-danger: #DC2626;
  --color-danger-soft: #FEF2F2;
  --color-success: #16A34A;
  --color-warn: #B45309;
  --color-warn-soft: #FFFBEB;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow: 0 6px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 18px 40px rgba(15, 23, 42, 0.12);

  --container: 1100px;
  --space: 16px;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  --header-h: 64px;
}

/* ---------- 暗色模式（默认） ---------- */
html[data-theme="dark"] {
  color-scheme: dark;
  --color-primary: #818CF8;
  --color-primary-dark: #A5B4FC;
  --color-primary-soft: #1E1B4B;
  --color-accent: #34D399;
  --color-accent-soft: #052E23;
  --color-bg: #0B1120;
  --color-surface: #111827;
  --color-text: #E5E7EB;
  --color-muted: #94A3B8;
  --color-border: #1F2937;
  --color-danger: #F87171;
  --color-danger-soft: #2A1416;
  --color-success: #4ADE80;
  --color-warn: #FBBF24;
  --color-warn-soft: #2A2110;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.55);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

/* [hidden] 必须始终生效：避免被 .file-meta{display:flex} 等规则覆盖而露出空图片 */
[hidden] { display: none !important; }
/* 尚未设置 src 的占位图片不显示破损图标 */
img[data-placeholder]:not([src]) { visibility: hidden; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; color: var(--color-text); margin: 0 0 .5em; }
h1 { font-size: clamp(1.75rem, 4vw, 2.6rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.35rem, 2.6vw, 1.9rem); letter-spacing: -0.01em; margin-top: 1.6em; }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin-bottom: .4em; }
kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .82em; padding: .1em .4em; border: 1px solid var(--color-border);
  border-bottom-width: 2px; border-radius: 6px; background: var(--color-bg);
}

.muted { color: var(--color-muted); }

/* ---------- 布局 ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 16px; }

.section { margin: 48px auto; }
@media (min-width: 768px) { .section { margin: 64px auto; } }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--color-primary); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: var(--header-h);
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--color-text); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-logo { color: var(--color-primary); flex: none; }
.brand-name { font-size: 1.05rem; letter-spacing: -0.01em; }

.header-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }

/* 语言切换 */
.lang-switch {
  display: inline-flex; align-items: center; gap: 2px; flex: none;
  padding: 2px; border: 1px solid var(--color-border);
  border-radius: 999px; background: var(--color-bg);
}
.lang-switch-item {
  font-size: .82rem; font-weight: 600; line-height: 1;
  padding: 6px 10px; border-radius: 999px; color: var(--color-muted);
}
.lang-switch-item:hover { color: var(--color-text); text-decoration: none; }
.lang-switch-item.is-active { background: var(--color-primary); color: #fff; }

/* 主题切换按钮 */
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; flex: none; padding: 0;
  border: 1px solid var(--color-border); border-radius: 999px;
  background: var(--color-bg); color: var(--color-text); cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
.theme-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }
.theme-toggle:focus-visible { outline: 3px solid color-mix(in srgb, var(--color-primary) 45%, transparent); outline-offset: 2px; }
.theme-toggle .theme-icon { display: none; }
html[data-theme="dark"] .theme-toggle .theme-icon-sun { display: block; }
html[data-theme="light"] .theme-toggle .theme-icon-moon { display: block; }

.site-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.site-nav a {
  color: var(--color-muted); font-size: .95rem; font-weight: 500;
  padding: 8px 10px; border-radius: 8px;
}
.site-nav a:hover { color: var(--color-text); background: var(--color-primary-soft); text-decoration: none; }
@media (max-width: 640px) {
  .site-nav a { padding: 6px 8px; font-size: .85rem; }
  .brand-name { display: none; }
}

/* ---------- 首屏 Hero ---------- */
.hero { text-align: center; padding: 40px 0 8px; }
.hero-sub { color: var(--color-muted); max-width: 640px; margin: 0 auto 28px; font-size: 1.02rem; }

/* ---------- 工具卡片 ---------- */
.tool-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 20px;
  text-align: left;
  margin: 0 auto;
  max-width: 860px;
}
@media (min-width: 768px) { .tool-card { padding: 32px; } }

/* ---------- 上传区 ---------- */
.dropzone {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  min-height: 220px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-primary-soft) 40%, var(--color-surface));
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: border-color .18s, background .18s, transform .18s;
}
.dropzone:hover { border-color: var(--color-primary); }
.dropzone:focus-visible { outline: 3px solid var(--color-primary); outline-offset: 2px; }
.dropzone.is-dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  transform: scale(1.005);
}
.dropzone-inner { text-align: center; padding: 24px; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.dropzone-icon { color: var(--color-primary); margin-bottom: 6px; }
.dropzone-title { font-weight: 600; font-size: 1.05rem; margin: 0; }
.dropzone-hint { color: var(--color-muted); font-size: .88rem; margin: 0 0 10px; }
.dropzone-btn { pointer-events: none; } /* 使用整块作为点击目标 */

/* ---------- 原图信息 ---------- */
.file-meta {
  display: flex; align-items: center; gap: 16px;
  margin-top: 20px; padding: 14px; border-radius: var(--radius);
  background: var(--color-bg); border: 1px solid var(--color-border);
}
.file-meta .thumb {
  width: 64px; height: 64px; object-fit: cover; border-radius: 10px; flex: none;
  background: var(--color-surface);
}
.file-meta-text { flex: 1; min-width: 0; }
.file-name { font-weight: 600; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-dims, .file-size { color: var(--color-muted); font-size: .88rem; margin: 0; }

/* ---------- 表单控件 ---------- */
.controls { margin-top: 24px; display: grid; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: .92rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field-hint { color: var(--color-muted); font-size: .82rem; margin: 0; }

input[type="number"], input[type="text"], input[type="password"], select, textarea {
  height: 48px; padding: 0 14px; font-size: 1rem; font-family: inherit;
  color: var(--color-text); background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: var(--radius);
  width: 100%; transition: border-color .15s, box-shadow .15s;
}
textarea {
  height: auto; min-height: 132px; padding: 12px 14px; line-height: 1.6;
  resize: vertical;
}
input[type="number"]:focus, input[type="text"]:focus, input[type="password"]:focus,
select:focus, textarea:focus {
  outline: none; border-color: var(--color-primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary) 18%, transparent);
}

.quick-picks { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.chip {
  font: inherit; font-size: .85rem; cursor: pointer;
  padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--color-border); background: var(--color-surface);
  color: var(--color-text); transition: all .15s;
}
.chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.chip.is-active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 20px; border-radius: var(--radius);
  font-family: inherit; font-size: 1rem; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: all .16s; text-align: center;
}
.btn:focus-visible { outline: 3px solid color-mix(in srgb, var(--color-primary) 45%, transparent); outline-offset: 2px; }
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--color-primary-dark); text-decoration: none; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost { background: transparent; color: var(--color-muted); border-color: var(--color-border); }
.btn-ghost:hover { color: var(--color-text); border-color: var(--color-muted); text-decoration: none; }
.btn-block { width: 100%; }
.btn-sm { min-height: 36px; padding: 0 12px; font-size: .85rem; }
.btn[aria-disabled="true"], .btn:disabled { opacity: .6; pointer-events: none; }

/* ---------- 进度 ---------- */
.progress { margin-top: 20px; }
.progress-bar { height: 8px; border-radius: 999px; background: var(--color-border); overflow: hidden; }
.progress-fill {
  display: block; height: 100%; width: 30%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
  animation: indeterminate 1.2s ease-in-out infinite;
}
@keyframes indeterminate {
  0% { margin-left: -30%; }
  100% { margin-left: 100%; }
}
.progress-text { color: var(--color-muted); font-size: .9rem; margin: 10px 0 0; text-align: center; }

/* ---------- 提示条 ---------- */
.alert { margin-top: 18px; padding: 14px 16px; border-radius: var(--radius); font-size: .92rem; }
.alert-error { background: var(--color-danger-soft); color: var(--color-danger); border: 1px solid color-mix(in srgb, var(--color-danger) 30%, transparent); }
.alert-warn { background: var(--color-warn-soft); color: var(--color-warn); border: 1px solid color-mix(in srgb, var(--color-warn) 30%, transparent); }

/* ---------- 结果区 ---------- */
.result { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--color-border); }
.result-title { text-align: center; color: var(--color-accent); margin-bottom: 18px; }
.result-grid { display: grid; grid-template-columns: 1fr; gap: 18px; margin-bottom: 18px; }
@media (min-width: 640px) { .result-grid { grid-template-columns: 200px 1fr; align-items: center; } }
.result-preview { margin: 0; text-align: center; }
.result-preview img {
  width: 100%; max-height: 200px; object-fit: contain; border-radius: var(--radius);
  background: var(--color-bg); border: 1px solid var(--color-border);
}
.result-preview figcaption { color: var(--color-muted); font-size: .82rem; margin-top: 8px; }
.result-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0; }
.result-stats > div { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 10px 14px; }
.result-stats dt { color: var(--color-muted); font-size: .78rem; }
.result-stats dd { margin: 2px 0 0; font-weight: 700; font-size: 1.05rem; }
.result-stats dd.hl { color: var(--color-accent); }
.result .btn-block { margin-top: 18px; }

/* ---------- 内容排版 ---------- */
.prose { max-width: 760px; }
.prose p, .prose li { color: color-mix(in srgb, var(--color-text) 88%, var(--color-muted)); }
.page > h1 { margin-bottom: .6em; }

.breadcrumbs { color: var(--color-muted); font-size: .88rem; margin: 24px 0 0; display: flex; gap: 8px; }

/* ---------- 步骤 ---------- */
.steps { list-style: none; padding: 0; display: grid; gap: 18px; grid-template-columns: 1fr; counter-reset: none; }
@media (min-width: 768px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 22px; box-shadow: var(--shadow-sm);
}
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 10px; margin-bottom: 12px;
  background: var(--color-primary-soft); color: var(--color-primary); font-weight: 700;
}
.step h3 { margin-bottom: 6px; }
.step p { color: var(--color-muted); font-size: .92rem; margin: 0; }

/* ---------- 格式卡片 ---------- */
.format-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .format-grid { grid-template-columns: repeat(3, 1fr); } }
.format-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent);
}
.format-card h3 { margin-bottom: 6px; }
.format-card p { color: var(--color-muted); font-size: .92rem; margin: 0; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 10px; }
.faq-item {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 4px 18px; box-shadow: var(--shadow-sm);
}
.faq-item summary {
  cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-size: 1.4rem; color: var(--color-primary); line-height: 1; flex: none;
  transition: transform .2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { color: var(--color-muted); font-size: .93rem; padding-bottom: 6px; margin: 0; }

/* ---------- 错误页 ---------- */
.error-page { text-align: center; padding: 60px 0; }
.error-code { font-size: clamp(4rem, 16vw, 8rem); font-weight: 800; line-height: 1; margin: 0 0 8px; color: var(--color-primary); opacity: .25; }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--color-border); background: var(--color-surface); margin-top: 40px; padding: 40px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.4fr 1fr; } }
.footer-title { font-weight: 700; margin: 0 0 6px; }
.footer-desc { color: var(--color-muted); font-size: .9rem; margin: 0; max-width: 420px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
@media (min-width: 768px) { .footer-nav { justify-content: flex-end; } }
.footer-nav a { color: var(--color-muted); font-size: .9rem; }
.footer-nav a:hover { color: var(--color-primary); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between;
  margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--color-border);
  color: var(--color-muted); font-size: .82rem;
}
.footer-bottom p { margin: 0; }
.footer-stats { display: flex; flex-wrap: wrap; gap: 6px 20px; margin: 14px 0 0; color: var(--color-muted); font-size: .82rem; }
.footer-stats span { white-space: nowrap; }
.footer-stats span span { color: var(--color-text); font-weight: 600; }

/* ---------- Cookie 横幅占位 ---------- */
.cookie-banner {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 60;
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 16px 18px;
  max-width: 760px; margin: 0 auto;
}
.cookie-banner p { margin: 0; font-size: .88rem; flex: 1 1 320px; }
.cookie-actions { display: flex; gap: 10px; }

/* ==========================================================================
   AI 翻译助手
   ========================================================================== */
.translate-card { display: flex; flex-direction: column; }
.card-title { font-size: 1.12rem; margin: 0 0 16px; }

/* ---------- 操作按钮 ---------- */
.actions-row { display: flex; gap: 12px; align-items: stretch; flex-wrap: wrap; }
.actions-row .btn-block { flex: 1 1 240px; }
.actions-row #clear-btn { flex: 0 0 auto; }

/* ---------- 状态提示 ---------- */
.status-line { display: flex; align-items: center; gap: 10px; margin-top: 16px; color: var(--color-muted); font-size: .92rem; }
.spinner {
  width: 15px; height: 15px; flex: none; border-radius: 50%;
  border: 2px solid var(--color-border); border-top-color: var(--color-primary);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.status-check { display: none; flex: none; color: var(--color-success); }
.status-line.is-done { color: var(--color-success); }
.status-line.is-done .spinner { display: none; }
.status-line.is-done .status-check { display: block; }

/* ---------- 输出区 ---------- */
.output-block { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--color-border); }
.output-title { margin: 0 0 12px; font-size: 1.05rem; }
.output-meta { margin: 0 0 12px; color: var(--color-muted); font-size: .85rem; }
.output-text {
  padding: 16px; border-radius: var(--radius);
  background: var(--color-primary-soft);
  border: 1px solid color-mix(in srgb, var(--color-primary) 24%, transparent);
  font-size: 1.05rem; line-height: 1.7; white-space: pre-wrap; word-break: break-word;
}

/* ---------- 回复建议卡片 ---------- */
.reply-list { display: grid; gap: 12px; }
.reply-card {
  background: var(--color-bg); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 14px 16px;
  animation: fadeInUp .3s ease both;
  transition: border-color .16s, box-shadow .16s;
}
/* 鼠标悬停在卡片上时高亮整张卡片 */
.reply-card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 55%, var(--color-border));
  box-shadow: var(--shadow-sm);
}
.reply-card.is-loading { opacity: .72; }
.reply-card.is-error { border-color: color-mix(in srgb, var(--color-danger) 40%, transparent); }
.reply-head { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-bottom: 8px; }
.reply-copy { flex: none; }
.reply-text { margin: 0; font-weight: 600; font-size: 1.05rem; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }
.reply-trans { margin: 8px 0 0; color: var(--color-muted); font-size: .92rem; line-height: 1.6; white-space: pre-wrap; word-break: break-word; }
.reply-error { margin: 0; color: var(--color-danger); font-size: .9rem; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- 页面紧凑化（翻译页） ---------- */
.page-translate .breadcrumbs { margin-top: 12px; }
.page-translate .hero { padding: 20px 0 0; }
.page-translate .hero-sub { margin-bottom: 18px; }
.page-translate h2 { margin-top: 0; }
.page-translate .section { margin: 28px auto; }
@media (min-width: 768px) { .page-translate .section { margin: 36px auto; } }
.page-translate .tool-card { padding: 18px; }
@media (min-width: 768px) { .page-translate .tool-card { padding: 24px; } }
.page-translate textarea { height: 88px; min-height: 88px; }
.page-translate .output-block { margin-top: 18px; padding-top: 16px; }
.page-translate .output-title { margin-bottom: 8px; }
.page-translate .output-meta { margin-bottom: 8px; }
.page-translate .output-text { padding: 12px 14px; }
.page-translate .reply-list { gap: 8px; }
.page-translate .reply-card { padding: 10px 14px; }
.page-translate #compose-text { height: 64px; min-height: 64px; margin-bottom: 10px; }
.page-translate #compose-result { margin-top: 12px; }

/* ---------- 深度思考开关（默认关闭） ---------- */
.thinking-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.thinking-toggle {
  display: inline-flex; align-items: center; gap: 8px; flex: none;
  padding: 4px 12px 4px 6px; border: 1px solid var(--color-border);
  border-radius: 999px; background: var(--color-surface); color: var(--color-muted);
  font: inherit; font-size: .85rem; font-weight: 600; line-height: 1.4;
  cursor: pointer; transition: color .15s, border-color .15s, background .15s;
}
.thinking-toggle:hover { border-color: var(--color-primary); color: var(--color-text); }
.thinking-toggle:focus-visible { outline: 3px solid color-mix(in srgb, var(--color-primary) 45%, transparent); outline-offset: 2px; }
.thinking-toggle-track {
  position: relative; width: 34px; height: 18px; flex: none;
  border-radius: 999px; background: var(--color-border); transition: background .18s;
}
.thinking-toggle-thumb {
  position: absolute; top: 2px; left: 2px; width: 14px; height: 14px;
  border-radius: 50%; background: var(--color-surface); box-shadow: var(--shadow-sm);
  transition: transform .18s;
}
.thinking-toggle.is-on { color: var(--color-primary); border-color: var(--color-primary); }
.thinking-toggle.is-on .thinking-toggle-track { background: var(--color-primary); }
.thinking-toggle.is-on .thinking-toggle-thumb { transform: translateX(16px); background: #fff; }
.thinking-hint { color: var(--color-muted); font-size: .8rem; }

/* ---------- 翻译结果：整块作为一张卡片（与建议卡片一致，悬停高亮） ---------- */
#translation-block {
  margin-top: 18px; padding: 14px 16px;
  border: 1px solid var(--color-border); border-radius: var(--radius);
  background: var(--color-bg);
  transition: border-color .16s, box-shadow .16s;
}
#translation-block:hover {
  border-color: color-mix(in srgb, var(--color-primary) 55%, var(--color-border));
  box-shadow: var(--shadow-sm);
}

/* ---------- 多语言结果行（同一张卡片内连续排布，不各自成格） ---------- */
.lang-rows { display: block; }
.lang-row { padding: 10px 0; }
/* 仅用一条极细的分隔线区分语种，不再给每种语言单独画格子 */
.lang-row + .lang-row {
  border-top: 1px solid color-mix(in srgb, var(--color-border) 70%, transparent);
}
.lang-row-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 6px; }
.lang-row-label { font-size: .82rem; font-weight: 600; color: var(--color-muted); letter-spacing: .02em; }
.lang-copy { flex: none; }
.lang-row-text { margin: 0; font-size: 1rem; line-height: 1.7; white-space: pre-wrap; word-break: break-word; }

/* ---------- 检测到的语言 / 使用国家与当地时间 ---------- */
.country-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 12px; }
.country-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-primary-soft);
  font-size: .82rem; color: var(--color-text);
}
.country-name { font-weight: 600; }
.country-time { font-variant-numeric: tabular-nums; color: var(--color-muted); }

/* ---------- 右下角：AI 实时输出小窗 ---------- */
.ai-live {
  position: fixed; right: 16px; bottom: 16px; z-index: 60;
  width: min(360px, calc(100vw - 32px));
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: fadeInUp .2s ease both;
}
.ai-live-head { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-bottom: 1px solid var(--color-border); }
.ai-live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); flex: none; }
.ai-live.is-active .ai-live-dot { animation: livePulse 1s ease-in-out infinite; }
.ai-live.is-done .ai-live-dot { background: var(--color-success); animation: none; }
@keyframes livePulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .35; transform: scale(.7); } }
.ai-live-title { flex: 1; font-size: .85rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ai-live-time { font-size: .78rem; color: var(--color-muted); font-variant-numeric: tabular-nums; }
.ai-live-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: 0; color: var(--color-muted);
  cursor: pointer; padding: 2px; border-radius: 6px;
}
.ai-live-toggle:hover { color: var(--color-text); background: var(--color-primary-soft); }
.ai-live-body {
  max-height: 180px; overflow-y: auto; padding: 10px 12px;
  font-size: .82rem; line-height: 1.6; color: var(--color-muted);
  white-space: pre-wrap; word-break: break-word;
}
.ai-live.is-collapsed .ai-live-body { display: none; }
@media (max-width: 480px) { .ai-live { right: 12px; left: 12px; bottom: 12px; width: auto; } }

/* ---------- 信息区块居中对齐 ---------- */
.section-center { text-align: center; }
.section-center .prose { margin-left: auto; margin-right: auto; }
.section-center .step { text-align: center; }
.section-center .faq-item summary { justify-content: center; }

/* ==========================================================================
   首页：工具导航
   ========================================================================== */
.portal-hero { padding: 40px 0 0; }
.portal-hero .hero-sub { margin-bottom: 0; }

.section-title { text-align: center; }

.tool-grid { display: grid; gap: 20px; grid-template-columns: 1fr; margin-top: 24px; }
@media (min-width: 768px) { .tool-grid { grid-template-columns: 1fr 1fr; } }

.tool-tile {
  display: flex; flex-direction: column;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow);
  padding: 26px; transition: transform .18s, box-shadow .18s, border-color .18s;
}
.tool-tile:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-lg);
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--color-border));
}
.tool-tile-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; border-radius: 14px; flex: none;
  background: var(--color-primary-soft); color: var(--color-primary); margin-bottom: 16px;
}
.tool-tile h3 { margin: 0 0 8px; font-size: 1.3rem; }
.tool-tile > p { color: var(--color-muted); font-size: .95rem; margin: 0 0 16px; }
.tool-tile ul { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 8px; }
.tool-tile li {
  position: relative; padding-left: 24px; margin: 0; font-size: .92rem;
  color: color-mix(in srgb, var(--color-text) 88%, var(--color-muted));
}
.tool-tile li::before {
  content: ""; position: absolute; left: 2px; top: .58em;
  width: 12px; height: 6px; border-left: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent); transform: rotate(-45deg);
}
.tool-tile .btn { margin-top: auto; text-decoration: none; }

/* ---------- 减弱动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}