/* EsprinNemo 官网样式
   设计令牌与应用端 src/renderer/styles/tokens.css 一致，控件（按钮、输入框、色板、Toast）
   也沿用应用内的写法；版式为站点自有，不再复刻应用窗口的标题栏与标签栏。 */

/* 品牌字体：与应用标题栏同款的 Mohave 可变字重字体 */
@font-face {
    font-family: 'Mohave';
    src: url('https://raw.githubusercontent.com/EsprinProject/Nemo/main/src/renderer/fonts/Mohave/Mohave-VariableFont_wght.ttf') format('truetype-variations'),
         url('https://raw.githubusercontent.com/EsprinProject/Nemo/main/src/renderer/fonts/Mohave/Mohave-VariableFont_wght.ttf') format('truetype');
    font-weight: 300 700;
    font-style: normal;
    font-display: swap;
}

/* ------------------------------------------------------------------
   设计令牌
   ------------------------------------------------------------------ */
:root {
    --bg-body: #0b0f14;
    --bg-titlebar: #111721;
    --bg-sidebar: #0b0f14;
    --bg-list: #111721;
    --bg-editor: #0b0f14;
    --border-color: #232c38;
    --border-light: rgba(255, 255, 255, 0.07);

    --text-primary: #e8eef6;
    --text-secondary: #97a3b2;
    --text-muted: #6c7a89;

    --accent: #58a6ff;
    --accent-bg: rgba(56, 139, 253, 0.15);
    --accent-fg: #ffffff;
    --danger: #f85149;
    --danger-bg: rgba(248, 81, 73, 0.15);

    --brand: #E6E8F3;

    --item-hover: rgba(255, 255, 255, 0.045);
    --item-active: rgba(255, 255, 255, 0.08);

    --radius-sm: 6px;
    --radius-md: 10px;

    --font-ui-latin: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Ubuntu", "Roboto", "Helvetica Neue", Arial;
    --font-ui-cjk: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", "WenQuanYi Micro Hei";
    --font-sans: var(--font-ui-latin), var(--font-ui-cjk), sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, "Fira Code", monospace;

    /* 站点专用令牌 */
    --container: 1120px;
    --header-h: 56px;
    --line-soft: rgba(255, 255, 255, 0.06);
    --glow: radial-gradient(closest-side, rgba(88, 166, 255, 0.16), transparent);
    --grid-line: rgba(255, 255, 255, 0.04);
    --code-bg: rgba(110, 118, 129, 0.14);
}

html.light {
    --bg-body: #fbfcfd;
    --bg-titlebar: #ffffff;
    --bg-sidebar: #f5f7f9;
    --bg-list: #ffffff;
    --bg-editor: #ffffff;
    --border-color: #d8dee4;
    --border-light: rgba(0, 0, 0, 0.06);

    --text-primary: #10161d;
    --text-secondary: #57606a;
    --text-muted: #7b848f;

    --accent: #0969da;
    --accent-bg: rgba(9, 105, 218, 0.1);
    --danger: #cf222e;
    --danger-bg: rgba(207, 34, 46, 0.1);

    --brand: #280C7D;

    --item-hover: rgba(0, 0, 0, 0.035);
    --item-active: rgba(0, 0, 0, 0.07);

    --line-soft: rgba(0, 0, 0, 0.07);
    --glow: radial-gradient(closest-side, rgba(9, 105, 218, 0.1), transparent);
    --grid-line: rgba(0, 0, 0, 0.045);
    --code-bg: rgba(110, 118, 129, 0.12);
}

/* ------------------------------------------------------------------
   基础重置
   ------------------------------------------------------------------ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* hidden 属性优先于组件自身的 display，否则 .lightbox 一类作者样式会盖过 UA 规则 */
[hidden] {
    display: none !important;
}

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

body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-primary);
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* 页面底纹：与应用工作区一样的极细网格，向上淡出 */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(120% 72% at 50% 0%, #000 5%, transparent 72%);
    -webkit-mask-image: radial-gradient(120% 72% at 50% 0%, #000 5%, transparent 72%);
}

a {
    color: inherit;
    text-decoration: none;
}

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

button {
    border: none;
    background: transparent;
    color: inherit;
    cursor: pointer;
    outline: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    font-size: inherit;
}

input {
    font-family: inherit;
    color: inherit;
    border: none;
    outline: none;
    background: transparent;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-muted);
}

::selection {
    background: var(--accent-bg);
}

/* 图标：内联 SVG 精灵，线宽与圆角对齐 Material Symbols Rounded 的观感 */
.icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.icon.fill {
    fill: currentColor;
    stroke: none;
}
.icon.xs { width: 14px; height: 14px; }
.icon.sm { width: 16px; height: 16px; }
.icon.lg { width: 22px; height: 22px; }
.sprite { display: none; }

/* ------------------------------------------------------------------
   排版
   ------------------------------------------------------------------ */
h1,
h2,
h3,
h4 {
    font-weight: 600;
    line-height: 1.35;
}

/* 行内代码：与应用文档区一致的浅底等宽样式 */
code {
    font-family: var(--font-mono);
    font-size: 0.92em;
    padding: 1px 5px;
    border-radius: 4px;
    background-color: var(--code-bg);
    color: var(--text-primary);
    white-space: nowrap;
}

kbd {
    font-family: var(--font-mono);
    font-size: 0.8em;
    padding: 2px 6px;
    border-radius: 5px;
    background-color: var(--item-hover);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    white-space: nowrap;
}

.skip-link {
    position: absolute;
    display: inline-flex;
    align-items: center;
    left: 12px;
    top: -60px;
    z-index: 400;
    padding: 8px 14px;
    background: var(--bg-list);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: top 0.15s;
}
.skip-link:focus {
    top: 12px;
}

/* ------------------------------------------------------------------
   布局
   ------------------------------------------------------------------ */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

main {
    position: relative;
    z-index: 1;
}

section {
    scroll-margin-top: calc(var(--header-h) + 20px);
}

/* 区块以细线分隔，形成说明书式的段落节奏 */
.section {
    padding: 92px 0;
    border-top: 1px solid var(--line-soft);
}

.spaced {
    margin-top: 26px;
}

.section-head {
    max-width: 680px;
    margin-bottom: 40px;
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.eyebrow::after {
    content: '';
    flex: 0 0 auto;
    width: 72px;
    height: 1px;
    background: var(--border-color);
}
.eyebrow-index {
    color: var(--accent);
    letter-spacing: 0.06em;
}
.eyebrow-index::after {
    content: '·';
    margin-left: 9px;
    color: var(--text-muted);
}

.section-title {
    margin-top: 12px;
    font-size: clamp(23px, 2.6vw, 30px);
    letter-spacing: -0.01em;
}
.section-desc {
    margin-top: 12px;
    color: var(--text-secondary);
    max-width: 62ch;
}

/* ------------------------------------------------------------------
   通用控件
   ------------------------------------------------------------------ */
/* 按钮类同时用于 <button> 与 <a>，所以布局属性必须写全（不能依赖 button 的重置） */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 36px;
    padding: 0 15px;
    gap: 8px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 500;
    line-height: 1;
    border: 1px solid transparent;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s, opacity 0.15s, transform 0.1s;
    white-space: nowrap;
}
.btn:active {
    transform: scale(0.98);
}
.btn-primary {
    background-color: var(--accent);
    color: var(--accent-fg);
}
.btn-primary:hover {
    opacity: 0.92;
}
.btn-ghost {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}
.btn-ghost:hover {
    background-color: var(--item-hover);
    border-color: var(--text-muted);
}
.btn-quiet {
    background-color: var(--item-hover);
    color: var(--text-secondary);
}
.btn-quiet:hover {
    background-color: var(--item-active);
    color: var(--text-primary);
}
.btn.sm {
    height: 30px;
    padding: 0 11px;
    font-size: 12.5px;
}
.btn.lg {
    height: 42px;
    padding: 0 20px;
    font-size: 14px;
}
.push-right {
    margin-left: auto;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: background-color 0.15s, color 0.15s;
}
.icon-btn:hover {
    background-color: var(--item-hover);
    color: var(--text-primary);
}

/* ------------------------------------------------------------------
   顶栏
   ------------------------------------------------------------------ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 300;
    border-bottom: 1px solid transparent;
    /* 支持 color-mix 的浏览器上做半透明毛玻璃，不支持时回落到纯色 */
    background-color: var(--bg-body);
    background-color: color-mix(in srgb, var(--bg-body) 82%, transparent);
    backdrop-filter: saturate(160%) blur(12px);
    -webkit-backdrop-filter: saturate(160%) blur(12px);
    transition: border-color 0.2s;
}
.site-header.is-scrolled {
    border-bottom-color: var(--border-color);
}

.header-inner {
    height: var(--header-h);
    display: flex;
    align-items: center;
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    flex-shrink: 0;
    padding: 4px 6px;
    margin-left: -6px;
    border-radius: var(--radius-sm);
    transition: background-color 0.15s;
}
.brand:hover {
    background-color: var(--item-hover);
}
.brand img {
    border-radius: 5px;
}
.brand-name {
    font-family: 'Mohave', var(--font-sans);
    font-size: 19px;
    font-weight: 600;
    letter-spacing: 0.4px;
    color: var(--brand);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.nav-link {
    height: 30px;
    padding: 0 11px;
    display: inline-flex;
    align-items: center;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    transition: background-color 0.15s, color 0.15s;
}
.nav-link:hover {
    background-color: var(--item-hover);
    color: var(--text-primary);
}
.nav-link.active {
    background-color: var(--item-active);
    color: var(--text-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.nav-toggle {
    display: none;
}

/* 网页版入口：宽度不足时收成仅图标，与相邻的图标按钮同宽 */
@media (max-width: 1240px) {
    .header-web {
        padding: 0 9px;
    }
    .header-web span {
        display: none;
    }
}

/* 移动端导航：展开时占据顶栏以下整宽 */
.mobile-nav {
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-list);
    padding: 10px 0 14px;
}
.mobile-nav nav {
    display: flex;
    flex-direction: column;
}
.mobile-nav .nav-link {
    height: 40px;
    justify-content: flex-start;
    font-size: 14px;
}

/* ------------------------------------------------------------------
   首屏：左文案 / 右真机截图，下方为规格条
   ------------------------------------------------------------------ */
.hero {
    padding: 72px 0 0;
    position: relative;
}
.hero::before {
    content: '';
    position: absolute;
    left: 50%;
    top: -180px;
    width: 980px;
    height: 460px;
    transform: translateX(-50%);
    background: var(--glow);
    pointer-events: none;
    z-index: 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    gap: 56px;
    align-items: center;
}

.hero-copy .eyebrow {
    margin-bottom: 20px;
}
.hero-copy .eyebrow::after {
    display: none;
}

.wordmark {
    font-family: 'Mohave', var(--font-sans);
    font-size: clamp(46px, 6.2vw, 76px);
    font-weight: 600;
    line-height: 1.02;
    letter-spacing: 0.4px;
    color: var(--brand);
}
.tagline {
    margin-top: 10px;
    font-family: var(--font-mono);
    font-size: 12.5px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.hero-lead {
    margin-top: 22px;
    font-size: 16.5px;
    line-height: 1.75;
    color: var(--text-primary);
    max-width: 46ch;
}
.hero-sub {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 52ch;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}
.hero-note {
    margin-top: 14px;
    font-size: 12.5px;
    color: var(--text-muted);
}

/* 规格条：四格并列，单元格之间以细线分隔 */
.spec-strip {
    margin-top: 64px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
}
.spec {
    padding: 20px 22px;
    border-left: 1px solid var(--line-soft);
}
.spec:first-child {
    border-left: none;
    padding-left: 0;
}
.spec dt {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.spec dd {
    margin-top: 8px;
    font-size: 14.5px;
    color: var(--text-primary);
}

/* ------------------------------------------------------------------
   截图框：全站展示应用截图的统一容器
   ------------------------------------------------------------------ */
.frame {
    margin: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-list);
    overflow: hidden;
}
.frame-bar {
    display: flex;
    align-items: center;
    gap: 9px;
    height: 36px;
    padding: 0 14px;
    border-bottom: 1px solid var(--border-light);
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--text-muted);
}
.frame-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-bg);
    flex-shrink: 0;
}
.frame-index {
    color: var(--accent);
}
.frame-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.frame-body {
    display: block;
    width: 100%;
    padding: 0;
    cursor: zoom-in;
    background-color: var(--bg-body);
}
.frame-body img {
    width: 100%;
    height: auto;
    transition: opacity 0.15s;
}
.frame-body:hover img {
    opacity: 0.94;
}
.frame figcaption {
    padding: 12px 14px;
    border-top: 1px solid var(--border-light);
    font-size: 12px;
    color: var(--text-muted);
}
.hero-frame {
    box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.55);
}

.gallery {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}
.frame-narrow .frame-body {
    background-color: var(--bg-sidebar);
}

/* 放大预览：遮罩由脚本按 .frame-body 的 data-shot 复用 */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    background-color: rgba(6, 9, 13, 0.86);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.lightbox-body {
    margin: 0;
    max-width: min(1200px, 100%);
}
.lightbox-body img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}
.lightbox-body figcaption {
    margin-top: 12px;
    text-align: center;
    font-size: 12.5px;
    color: #c9d1d9;
}
.lightbox-close {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    color: #c9d1d9;
    background-color: rgba(255, 255, 255, 0.08);
}
.lightbox-close:hover {
    background-color: rgba(255, 255, 255, 0.16);
    color: #ffffff;
}

/* ------------------------------------------------------------------
   功能单元：以细线分格的网格
   ------------------------------------------------------------------ */
.cell-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background-color: var(--line-soft);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.cell {
    background-color: var(--bg-body);
    padding: 24px 22px 26px;
}
.cell-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background-color: var(--accent-bg);
    color: var(--accent);
    margin-bottom: 14px;
}
.cell h3 {
    font-size: 14.5px;
    margin-bottom: 8px;
}
.cell p {
    font-size: 13.5px;
    color: var(--text-secondary);
}

/* 说明条目：用于并列陈述若干外观事实 */
.notes {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--line-soft);
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px 32px;
}
.note h3 {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.note p {
    font-size: 13.5px;
    color: var(--text-secondary);
}


/* ------------------------------------------------------------------
   分栏内容（随口记 / AI 助手 / 数据与隐私 / 自建同步）
   ------------------------------------------------------------------ */
.split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
}

.sub-title {
    font-size: 15px;
    margin-bottom: 18px;
}

.check-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.check-list li {
    display: flex;
    gap: 11px;
    font-size: 13.5px;
    color: var(--text-secondary);
}
.check-list .icon {
    margin-top: 4px;
    color: var(--accent);
}
.check-list strong {
    color: var(--text-primary);
    font-weight: 500;
}

.panel {
    background-color: var(--bg-list);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.panel-head {
    height: 40px;
    padding: 0 14px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 12.5px;
    font-weight: 500;
}
.panel-body {
    padding: 14px;
}
.panel-foot {
    padding: 0 14px 14px;
}

/* 同步流程 */
.steps {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.step {
    display: flex;
    gap: 14px;
}
.step-index {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
}
.step h4 {
    font-size: 13.5px;
    margin-bottom: 4px;
}
.step p {
    font-size: 13.5px;
    color: var(--text-secondary);
}

/* 对话面板示意 */
.chat {
    padding: 16px 14px 6px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.bubble {
    border-radius: var(--radius-md);
    padding: 11px 13px;
    font-size: 13px;
}
.bubble.user {
    background-color: var(--item-hover);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
}
.bubble.assistant {
    background-color: var(--accent-bg);
    color: var(--text-primary);
}
.bubble-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}
.bubble-actions span {
    font-size: 11.5px;
    padding: 3px 9px;
    border-radius: 999px;
    background-color: var(--bg-list);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.tool-line {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.tool-chip {
    font-size: 11.5px;
    padding: 4px 10px;
    border-radius: 999px;
    background-color: var(--bg-body);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}
.tool-chip code {
    background: transparent;
    padding: 0;
    font-size: 0.95em;
}
.tool-chip.undo {
    color: var(--accent);
    border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}
.chat-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 4px;
    padding-top: 10px;
    border-top: 1px solid var(--border-light);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
}

/* 聆听条示意 */
.voice-demo {
    padding: 16px 14px 6px;
}
.voice-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 13px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    background-color: var(--item-hover);
}
.voice-state {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 12.5px;
    white-space: nowrap;
}
.rec-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--danger);
    box-shadow: 0 0 0 3px var(--danger-bg);
}
.wave {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    height: 18px;
    flex: 1;
    min-width: 0;
}
.wave i {
    display: block;
    width: 2px;
    height: 6px;
    border-radius: 2px;
    background-color: var(--accent);
    animation: wave 1.1s ease-in-out infinite;
}
.wave i:nth-child(2n) { animation-delay: 0.15s; }
.wave i:nth-child(3n) { animation-delay: 0.3s; }
.wave i:nth-child(4n) { animation-delay: 0.45s; }
@keyframes wave {
    0%, 100% { height: 5px; opacity: 0.5; }
    50% { height: 17px; opacity: 1; }
}
.voice-stop {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}
.voice-final {
    margin-top: 16px;
    font-size: 13.5px;
    color: var(--text-primary);
}
.voice-live {
    margin-top: 8px;
    font-size: 13px;
    font-style: italic;
    color: var(--text-muted);
}
.demo-note {
    padding: 12px 14px 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
}

/* ------------------------------------------------------------------
   命令行代码块与元数据片段
   ------------------------------------------------------------------ */
.code-block {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-body);
    overflow: hidden;
}
.section > .container > .code-block {
    margin-top: 26px;
}
.code-head {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 10px 8px 14px;
    border-bottom: 1px solid var(--border-light);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
}
.code-block pre {
    padding: 14px 16px;
    font-family: var(--font-mono);
    font-size: 12.5px;
    line-height: 1.9;
    color: var(--text-secondary);
    overflow-x: auto;
    user-select: text;
}
.code-block .cmt { color: var(--text-muted); }
.code-block .cmd { color: var(--text-primary); }

/* 笔记元数据注释片：排版与应用内文档区一致 */
.code-snippet {
    background-color: var(--code-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    line-height: 1.8;
    color: var(--text-secondary);
    white-space: pre;
    overflow-x: auto;
}

/* ------------------------------------------------------------------
   表格
   ------------------------------------------------------------------ */
.table-wrap {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow-x: auto;
}
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}
thead th {
    text-align: left;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 11px 16px;
    background-color: var(--item-hover);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}
tbody td {
    padding: 11px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    vertical-align: top;
}
tbody td:first-child {
    color: var(--text-primary);
}
tbody tr:last-child td {
    border-bottom: none;
}
tbody tr:hover td {
    background-color: var(--item-hover);
}

/* ------------------------------------------------------------------
   下载
   ------------------------------------------------------------------ */
.download-card {
    padding: 32px;
    background-color: var(--bg-list);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}
.download-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
}
.release-line {
    display: flex;
    align-items: center;
    gap: 10px;
}
.release-tag {
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 3px 10px;
    border-radius: 999px;
    background-color: var(--accent-bg);
    color: var(--accent);
}
.release-note {
    font-size: 12px;
    color: var(--text-muted);
}
.download-lead {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 52ch;
}
.download-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.download-info {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 28px;
}
.info-item {
    display: flex;
    gap: 11px;
    padding: 15px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: var(--item-hover);
}
.info-item .icon {
    color: var(--text-muted);
    margin-top: 2px;
}
.info-item h4 {
    font-size: 13px;
    margin-bottom: 4px;
}
.info-item p {
    font-size: 12.5px;
    color: var(--text-secondary);
}

/* ------------------------------------------------------------------
   页脚
   ------------------------------------------------------------------ */
.site-footer {
    border-top: 1px solid var(--line-soft);
    background-color: var(--bg-titlebar);
    padding: 52px 0 44px;
    position: relative;
    z-index: 1;
}
.footer-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
    gap: 32px;
}
.footer-brand .brand-row {
    display: flex;
    align-items: center;
    gap: 9px;
}
.footer-brand .brand-row img {
    border-radius: 5px;
}
.footer-brand .brand-name {
    font-family: 'Mohave', var(--font-sans);
    font-size: 19px;
    font-weight: 600;
    letter-spacing: 0.4px;
    color: var(--brand);
}
.footer-tagline {
    margin-top: 8px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.footer-note {
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-muted);
    max-width: 40ch;
}
.footer-col {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-col h3 {
    margin-bottom: 2px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.footer-col a {
    width: fit-content;
    font-size: 13px;
    color: var(--text-secondary);
    transition: color 0.15s;
}
.footer-col a:hover {
    color: var(--text-primary);
}

/* 回到顶部 */
.back-top {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 320;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: color-mix(in srgb, var(--bg-list) 90%, transparent);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-secondary);
    transition: color 0.15s, border-color 0.15s;
}
.back-top:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

/* ------------------------------------------------------------------
   Toast：与应用内的提示条同款
   ------------------------------------------------------------------ */
.toast-box {
    position: fixed;
    bottom: 20px;
    right: 70px;
    z-index: 400;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}
.toast-item {
    background: var(--bg-list);
    border: 1px solid var(--border-color);
    padding: 9px 14px;
    border-radius: var(--radius-md);
    font-size: 12.5px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 8px 24px -12px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.15s ease-out;
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ------------------------------------------------------------------
   入场动画
   ------------------------------------------------------------------ */
.reveal {
    opacity: 0;
    transform: translateY(14px);
}
.reveal.visible {
    opacity: 1;
    transform: none;
    transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ------------------------------------------------------------------
   响应式
   ------------------------------------------------------------------ */
@media (max-width: 1060px) {
    .hero-grid { gap: 40px; }
    .nav-link { padding: 0 9px; }
}

@media (max-width: 940px) {
    .site-nav { display: none; }
    .nav-toggle { display: inline-flex; }
    .header-actions .hide-sm { display: none; }
    .hero { padding-top: 56px; }
    .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 36px; }
    .spec-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 48px; }
    .spec { padding: 18px 20px; }
    .spec:nth-child(odd) { border-left: none; padding-left: 0; }
    .spec:nth-child(n + 3) { border-top: 1px solid var(--line-soft); }
    .gallery { grid-template-columns: minmax(0, 1fr); }
    .cell-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .notes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .split { grid-template-columns: minmax(0, 1fr); gap: 32px; }
    .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
    .footer-brand { grid-column: 1 / -1; }
    .download-info { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
    .container { padding: 0 16px; }
    .section { padding: 64px 0; }
    .hero { padding-top: 40px; }
    .hero-lead { font-size: 15.5px; }
    .cell-grid { grid-template-columns: minmax(0, 1fr); }
    .notes { grid-template-columns: minmax(0, 1fr); gap: 22px; }
    .spec { padding: 16px; }
    .download-card { padding: 22px 18px; }
    .download-head { align-items: flex-start; }
    .download-actions { width: 100%; }
    .download-actions .btn { flex: 1; }
    .toast-box { left: 16px; right: 16px; bottom: 68px; }
    .back-top { right: 16px; bottom: 16px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
    .wave i {
        animation: none;
        height: 10px;
        opacity: 0.8;
    }
}