/* ==========================================================================
   MujikaNetwork — landing page styles（HeroUI v3 视觉，与用户面板 my.mujika.pro 一致）
   --------------------------------------------------------------------------
   颜色 token 原样取自 @heroui/styles 3.2.4 默认主题（oklch + color-mix）。
   主题三态：裸 :root 亮色；prefers-color-scheme: dark 时 :root:not([data-theme="light"]) 暗色；
   :root[data-theme="dark"] 显式暗色（index.html 首屏脚本 / script.js 写入）。
   ========================================================================== */

:root {
    color-scheme: light;

    --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
        "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Noto Sans CJK SC",
        sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    /* 基础值 */
    --white: oklch(100% 0 0);
    --black: oklch(0% 0 0);
    --snow: oklch(0.9911 0 0);
    --eclipse: oklch(0.2103 0.0059 285.89);
    --ease-smooth: ease;
    --ease-out: cubic-bezier(0.215, 0.61, 0.355, 1);
    --ease-out-quart: cubic-bezier(0.165, 0.84, 0.44, 1);

    /* 亮色语义色 */
    --background: oklch(0.9702 0 0);
    --foreground: var(--eclipse);
    --surface: var(--white);
    --surface-foreground: var(--foreground);
    --surface-secondary: oklch(0.9524 0.0013 286.37);
    --surface-tertiary: oklch(0.9373 0.0013 286.37);
    --overlay: var(--white);
    --overlay-foreground: var(--foreground);
    --muted: oklch(0.5517 0.0138 285.94);
    --default: oklch(94% 0.001 286.375);
    --default-foreground: var(--eclipse);
    --accent: oklch(0.6204 0.195 253.83);
    --accent-foreground: var(--snow);
    --success: oklch(0.7329 0.1935 150.81);
    --success-foreground: var(--eclipse);
    --warning: oklch(0.7819 0.1585 72.33);
    --warning-foreground: var(--eclipse);
    --danger: oklch(0.6532 0.2328 25.74);
    --danger-foreground: var(--snow);
    --segment: var(--white);
    --segment-foreground: var(--eclipse);
    --border: oklch(90% 0.004 286.32);
    --separator: oklch(92% 0.004 286.32);
    --focus: var(--accent);
    --link: var(--foreground);

    --accent-soft: color-mix(in oklab, var(--accent) 15%, transparent);
    --accent-soft-foreground: color-mix(in oklab, var(--accent) 70%, var(--foreground) 30%);
    --accent-soft-hover: color-mix(in oklab, var(--accent) 20%, transparent);
    --success-soft: color-mix(in oklab, var(--success) 15%, transparent);
    --success-soft-foreground: color-mix(in oklab, var(--success) 80%, var(--foreground) 60%);

    --surface-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.04), 0 1px 2px 0 rgba(0, 0, 0, 0.06), 0 0 1px 0 rgba(0, 0, 0, 0.06);
    --overlay-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.06), 0 -6px 12px 0 rgba(0, 0, 0, 0.03), 0 14px 28px 0 rgba(0, 0, 0, 0.08);

    /* 派生色（只声明一次：暗色块覆盖基础色后会自动重新计算） */
    --surface-hover: color-mix(in oklab, var(--surface) 92%, var(--surface-foreground) 8%);
    --background-secondary: color-mix(in oklab, var(--background) 96%, var(--foreground) 4%);
    --default-hover: color-mix(in oklab, var(--default) 96%, var(--default-foreground) 4%);
    --accent-hover: color-mix(in oklab, var(--accent) 90%, var(--accent-foreground) 10%);
    --separator-secondary: color-mix(in oklab, var(--surface) 85%, var(--surface-foreground) 15%);
    --separator-tertiary: color-mix(in oklab, var(--surface) 81%, var(--surface-foreground) 19%);
    --border-secondary: color-mix(in oklab, var(--surface) 78%, var(--surface-foreground) 22%);
    --border-tertiary: color-mix(in oklab, var(--surface) 66%, var(--surface-foreground) 34%);

    /* 形状 */
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-2xl: 16px;
    --radius-3xl: 24px;
    --radius-card: 24px;
    --container: 1120px;
    --header-h: 64px;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;
        --background: oklch(12% 0.005 285.823);
        --foreground: var(--snow);
        --surface: oklch(0.2103 0.0059 285.89);
        --surface-secondary: oklch(0.257 0.0037 286.14);
        --surface-tertiary: oklch(0.2721 0.0024 247.91);
        --overlay: oklch(0.2103 0.0059 285.89);
        --muted: oklch(70.5% 0.015 286.067);
        --default: oklch(27.4% 0.006 286.033);
        --default-foreground: var(--snow);
        --warning: oklch(0.8203 0.1388 76.34);
        --danger: oklch(0.594 0.1967 24.63);
        --segment: oklch(0.3964 0.01 285.93);
        --segment-foreground: var(--foreground);
        --border: oklch(28% 0.006 286.033);
        --separator: oklch(25% 0.006 286.033);
        --accent-soft: color-mix(in oklab, var(--accent) 12%, transparent);
        --accent-soft-foreground: color-mix(in oklab, var(--accent) 80%, var(--foreground) 30%);
        --accent-soft-hover: color-mix(in oklab, var(--accent) 16%, transparent);
        --success-soft: color-mix(in oklab, var(--success) 12%, transparent);
        --success-soft-foreground: color-mix(in oklab, var(--success) 80%, var(--foreground) 30%);
        --surface-shadow: 0 0 0 0 transparent inset;
        --overlay-shadow: 0 0 1px 0 rgba(255, 255, 255, 0.3) inset;
    }
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --background: oklch(12% 0.005 285.823);
    --foreground: var(--snow);
    --surface: oklch(0.2103 0.0059 285.89);
    --surface-secondary: oklch(0.257 0.0037 286.14);
    --surface-tertiary: oklch(0.2721 0.0024 247.91);
    --overlay: oklch(0.2103 0.0059 285.89);
    --muted: oklch(70.5% 0.015 286.067);
    --default: oklch(27.4% 0.006 286.033);
    --default-foreground: var(--snow);
    --warning: oklch(0.8203 0.1388 76.34);
    --danger: oklch(0.594 0.1967 24.63);
    --segment: oklch(0.3964 0.01 285.93);
    --segment-foreground: var(--foreground);
    --border: oklch(28% 0.006 286.033);
    --separator: oklch(25% 0.006 286.033);
    --accent-soft: color-mix(in oklab, var(--accent) 12%, transparent);
    --accent-soft-foreground: color-mix(in oklab, var(--accent) 80%, var(--foreground) 30%);
    --accent-soft-hover: color-mix(in oklab, var(--accent) 16%, transparent);
    --success-soft: color-mix(in oklab, var(--success) 12%, transparent);
    --success-soft-foreground: color-mix(in oklab, var(--success) 80%, var(--foreground) 30%);
    --surface-shadow: 0 0 0 0 transparent inset;
    --overlay-shadow: 0 0 1px 0 rgba(255, 255, 255, 0.3) inset;
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 16px);
    scrollbar-gutter: stable;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100vh;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    color: var(--foreground);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* 各语言的中日文回退字体（Inter 负责拉丁字符） */
html:lang(zh-TW) body {
    font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
        "PingFang TC", "Hiragino Sans CNS", "Microsoft JhengHei", "Noto Sans TC", "Noto Sans CJK TC",
        sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
}

html:lang(ja) body {
    font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
        "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", Meiryo,
        "Noto Sans JP", "Noto Sans CJK JP", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
}

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

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

button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
}

ul {
    list-style: none;
    padding: 0;
}

h1,
h2,
h3,
h4 {
    line-height: 1.2;
    font-weight: 600;
    letter-spacing: -0.01em;
    text-wrap: balance;
}

[hidden] {
    display: none !important;
}

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

::selection {
    background: var(--accent);
    color: var(--accent-foreground);
}

.icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: 24px;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    z-index: 100;
}

.skip-link:focus {
    top: 12px;
}

.separator {
    width: 100%;
    height: 1px;
    flex-shrink: 0;
    background: var(--separator);
}

/* --------------------------------------------------------------------------
   Button（对应 HeroUI .button：h-10 / md:h-9，rounded-3xl，text-sm font-medium，按下 scale .97）
   -------------------------------------------------------------------------- */

.button {
    --button-bg: transparent;
    --button-bg-hover: var(--button-bg);
    --button-fg: currentColor;

    position: relative;
    display: inline-flex;
    width: fit-content;
    height: 40px;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 16px;
    border-radius: var(--radius-3xl);
    background-color: var(--button-bg);
    color: var(--button-fg);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
    user-select: none;
    transform: translateZ(0);
    transition:
        transform 250ms var(--ease-smooth),
        background-color 100ms var(--ease-out),
        box-shadow 100ms var(--ease-out);
}

.button:active {
    background-color: var(--button-bg-hover);
    transform: scale(0.97);
}

@media (hover: hover) {
    .button:hover {
        background-color: var(--button-bg-hover);
    }
}

.button:focus-visible {
    outline: none;
    box-shadow:
        0 0 0 2px var(--background),
        0 0 0 4px var(--focus);
}

.button svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-inline: -2px;
    pointer-events: none;
}

.button--primary {
    --button-bg: var(--accent);
    --button-bg-hover: var(--accent-hover);
    --button-fg: var(--accent-foreground);
}

.button--secondary {
    --button-bg: var(--default);
    --button-bg-hover: var(--default-hover);
    --button-fg: var(--accent-soft-foreground);
}

.button--tertiary {
    --button-bg: var(--default);
    --button-bg-hover: var(--default-hover);
    --button-fg: var(--foreground);
}

.button--ghost {
    --button-bg: transparent;
    --button-bg-hover: var(--default);
    --button-fg: var(--foreground);
}

.button--lg {
    height: 44px;
    padding-inline: 20px;
    font-size: 1rem;
}

.button--lg:active {
    transform: scale(0.96);
}

.button--icon-only {
    width: 40px;
    padding: 0;
}

.button--full-width {
    width: 100%;
}

@media (min-width: 768px) {
    .button {
        height: 36px;
    }

    .button--lg {
        height: 40px;
    }

    .button--icon-only {
        width: 36px;
    }
}

/* --------------------------------------------------------------------------
   Chip / Card / Icon tile（对应 HeroUI .chip .card 与面板 .icon-tile）
   -------------------------------------------------------------------------- */

.chip {
    --chip-bg: var(--default);
    --chip-fg: currentColor;

    display: inline-flex;
    width: fit-content;
    flex-shrink: 0;
    align-items: center;
    gap: 2px;
    padding: 2px 8px;
    border-radius: var(--radius-2xl);
    background-color: var(--chip-bg);
    color: var(--chip-fg);
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1.25rem;
}

.chip--accent.chip--soft {
    --chip-bg: var(--accent-soft);
    --chip-fg: var(--accent-soft-foreground);
}

.chip--success.chip--soft {
    --chip-bg: var(--success-soft);
    --chip-fg: var(--success-soft-foreground);
}

.card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    border-radius: var(--radius-card);
    background-color: var(--surface);
    color: var(--surface-foreground);
    box-shadow: var(--surface-shadow);
}

.card__title {
    font-size: 0.875rem;
    line-height: 1.5rem;
    font-weight: 500;
    color: var(--foreground);
}

.card__description {
    font-size: 0.875rem;
    line-height: 1.25rem;
    color: var(--muted);
}

.icon-tile {
    display: flex;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-3xl);
    background-color: var(--default);
    color: var(--muted);
}

.icon-tile svg {
    width: 20px;
    height: 20px;
}

.icon-tile--accent {
    background-color: var(--accent-soft);
    color: var(--accent-soft-foreground);
}

.icon-tile--lg {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-2xl);
    color: var(--foreground);
}

.icon-tile--lg svg {
    width: 22px;
    height: 22px;
}

/* --------------------------------------------------------------------------
   Header（对应面板 .topbar：h-16、背景 82% + blur）
   -------------------------------------------------------------------------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: color-mix(in oklab, var(--background) 82%, transparent);
    -webkit-backdrop-filter: blur(16px) saturate(1.5);
    backdrop-filter: blur(16px) saturate(1.5);
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
    height: var(--header-h);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border-radius: var(--radius-xl);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-lg);
    background: var(--accent);
    color: var(--accent-foreground);
}

.brand-mark svg {
    width: 16px;
    height: 16px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: 16px;
}

.nav-links a {
    display: inline-flex;
    min-height: 36px;
    align-items: center;
    padding: 0 12px;
    border-radius: var(--radius-2xl);
    color: var(--muted);
    font-size: 0.875rem;
    font-weight: 500;
    transition:
        color 0.15s,
        background-color 0.15s;
}

.nav-links a:hover {
    color: var(--foreground);
    background: var(--default);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

/* 语言切换（对应面板 LanguageSelector：tertiary 按钮 + dropdown__popover） */
.lang-switcher {
    position: relative;
}

.lang-btn {
    padding-inline: 12px 10px;
}

.lang-current {
    font-size: 0.875rem;
}

.lang-btn .icon-chevron {
    width: 14px;
    height: 14px;
    color: var(--muted);
    transition: transform 0.2s var(--ease-out);
}

.lang-btn[aria-expanded="true"] .icon-chevron {
    transform: rotate(180deg);
}

.lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 50;
    min-width: 220px;
    padding: 6px;
    border-radius: var(--radius-card);
    background: var(--overlay);
    color: var(--overlay-foreground);
    box-shadow: var(--overlay-shadow);
    animation: pop-in 0.15s var(--ease-smooth);
}

.menu__header {
    padding: 6px 8px 4px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--muted);
}

.menu-item {
    display: flex;
    width: 100%;
    min-height: 36px;
    align-items: center;
    gap: 12px;
    padding: 6px 10px;
    border-radius: var(--radius-2xl);
    color: var(--foreground);
    font-size: 0.875rem;
    text-align: left;
    transition: background-color 0.15s;
}

.menu-item:hover,
.menu-item:focus-visible {
    background: var(--default);
    outline: none;
}

.menu-item__check {
    display: flex;
    width: 16px;
    flex-shrink: 0;
    justify-content: center;
}

.menu-item__check svg {
    width: 16px;
    height: 16px;
    opacity: 0;
}

.menu-item[aria-checked="true"] .menu-item__check svg {
    opacity: 1;
}

.menu-item__label {
    flex: 1;
}

.menu-item__code {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
}

/* 主题切换 */
.theme-toggle .icon-sun {
    display: none;
}

:root[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
    display: none;
}

/* 手机端菜单（下拉卡片，与语言菜单同一形态） */
.menu-toggle {
    display: none;
}

.menu-toggle .icon-close {
    display: none;
}

.site-header.is-open .menu-toggle .icon-close {
    display: block;
}

.site-header.is-open .menu-toggle .icon-menu {
    display: none;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    right: 16px;
    left: 16px;
    z-index: 50;
    padding: 6px;
    border-radius: var(--radius-card);
    background: var(--overlay);
    color: var(--overlay-foreground);
    box-shadow: var(--overlay-shadow);
}

.mobile-menu nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-menu nav a:not(.button) {
    display: flex;
    min-height: 36px;
    align-items: center;
    padding: 6px 10px;
    border-radius: var(--radius-2xl);
    color: var(--foreground);
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 0.15s;
}

.mobile-menu nav a:not(.button):hover {
    background: var(--default);
}

.mobile-menu .button {
    margin-top: 6px;
}

@keyframes pop-in {
    from {
        opacity: 0;
        transform: translateY(-4px) scale(0.96);
    }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: clamp(56px, 9vw, 104px) 0 clamp(40px, 6vw, 72px);
    text-align: center;
}

/* 极淡的点阵，向四周淡出（与面板认证页左侧面板同一手法） */
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image: radial-gradient(var(--border-tertiary) 1px, transparent 1.5px);
    background-size: 24px 24px;
    opacity: 0.55;
    -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 30%, #000 20%, transparent 75%);
    mask-image: radial-gradient(ellipse 60% 60% at 50% 30%, #000 20%, transparent 75%);
}

.hero-inner {
    max-width: 760px;
}

.hero-title {
    font-size: clamp(2rem, 1.3rem + 3.4vw, 3.5rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

html:lang(ja) .hero-title {
    font-size: clamp(1.75rem, 1.15rem + 2.9vw, 3rem);
    letter-spacing: -0.02em;
}

.hero-title span {
    display: block;
}

.hero-title__accent {
    color: var(--accent);
}

.hero-subtitle {
    max-width: 560px;
    margin: 20px auto 0;
    font-size: clamp(1rem, 0.95rem + 0.4vw, 1.125rem);
    line-height: 1.6;
    color: var(--muted);
    text-wrap: balance;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 28px;
}

.hero-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    margin-top: 24px;
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */

.section {
    padding-block: clamp(40px, 6vw, 72px);
}

.section-head {
    display: flex;
    max-width: 640px;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin: 0 auto 28px;
    text-align: center;
}

.section-head h2 {
    font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
    letter-spacing: -0.025em;
}

/* Features */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.feature-card {
    gap: 14px;
    padding: 20px;
}

.feature-card h3 {
    font-size: 0.9375rem;
    line-height: 1.4;
}

.feature-card p {
    margin-top: 4px;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--muted);
}

/* --------------------------------------------------------------------------
   Pricing（对齐面板商店页套餐卡）
   -------------------------------------------------------------------------- */

.pricing-group + .pricing-group {
    margin-top: 40px;
}

.group-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--foreground);
}

.group-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--separator-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.pricing-card {
    gap: 16px;
    padding: 20px;
}

.plan-name {
    font-size: 1rem;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.plan-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
    line-height: 1;
}

.plan-currency {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted);
}

.plan-amount {
    font-size: 1.875rem;
    font-weight: 600;
    letter-spacing: -0.025em;
    font-variant-numeric: tabular-nums;
}

.plan-period {
    font-size: 0.875rem;
    color: var(--muted);
}

.plan-traffic {
    white-space: normal;
}

.plan-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.875rem;
    line-height: 1.5;
}

.plan-features li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.plan-features li::before {
    content: "";
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 2px;
    background: var(--success-soft-foreground);
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / contain no-repeat;
}

.pricing-card > .button {
    margin-top: auto;
}

/* 一次性流量包：单张宽卡 */
.pricing-card--wide {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
    gap: 24px;
    align-items: center;
}

.wide-summary {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
}

.wide-summary .button {
    align-self: stretch;
    margin-top: 4px;
}

.pricing-card--wide .plan-features {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 20px;
    padding-left: 24px;
    border-left: 1px solid var(--separator-secondary);
}

/* --------------------------------------------------------------------------
   Platforms
   -------------------------------------------------------------------------- */

.platform-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.platform-card {
    align-items: center;
    gap: 12px;
    padding: 24px 16px;
    text-align: center;
}

.platform-card h3 {
    font-size: 0.9375rem;
}

.platform-card p {
    margin-top: -8px;
    font-size: 0.8125rem;
    color: var(--muted);
}

/* --------------------------------------------------------------------------
   Footer（面板页脚：小字 muted）
   -------------------------------------------------------------------------- */

.site-footer {
    padding: clamp(24px, 4vw, 40px) 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--separator-secondary);
}

.footer-col h4 {
    margin-bottom: 10px;
    font-size: 0.875rem;
    font-weight: 500;
}

.footer-col p {
    max-width: 400px;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--muted);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-links a {
    width: fit-content;
    font-size: 0.875rem;
    color: var(--muted);
    transition: color 0.15s;
}

.footer-links a:hover {
    color: var(--foreground);
}

.social-links {
    display: flex;
    gap: 8px;
}

.footer-bottom {
    margin-top: 32px;
    padding-top: 16px;
    border-top: 1px solid var(--separator);
    text-align: center;
    font-size: 0.75rem;
    color: var(--muted);
}

/* --------------------------------------------------------------------------
   Scroll reveal
   -------------------------------------------------------------------------- */

.js [data-reveal]:not(.is-visible) {
    opacity: 0;
}

.js [data-reveal].is-visible {
    animation: reveal 0.5s var(--ease-out-quart) backwards;
    animation-delay: calc(var(--i, 0) * 70ms);
}

@keyframes reveal {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .nav-links,
    .nav-cta {
        display: none;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .site-header.is-open .mobile-menu {
        display: block;
        animation: pop-in 0.15s var(--ease-smooth);
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin-inline: auto;
    }
}

@media (max-width: 760px) {
    .pricing-card--wide {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .pricing-card--wide .plan-features {
        grid-template-columns: 1fr;
        padding-top: 16px;
        padding-left: 0;
        border-left: 0;
        border-top: 1px solid var(--separator-secondary);
    }

    .platform-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 640px) {
    .container {
        padding-inline: 16px;
    }

    .lang-current,
    .lang-btn .icon-chevron {
        display: none;
    }

    .lang-btn {
        width: 40px;
        padding: 0;
        justify-content: center;
    }

    .hero-actions .button {
        width: 100%;
        max-width: 320px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    /* 手机：图标在左、文字在右（同面板商店页的特性卡） */
    .feature-card {
        flex-direction: row;
        align-items: flex-start;
        gap: 12px;
        padding: 16px;
    }

    .platform-grid {
        gap: 12px;
    }
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .js [data-reveal]:not(.is-visible) {
        opacity: 1;
    }

    .js [data-reveal].is-visible,
    .lang-menu,
    .site-header.is-open .mobile-menu {
        animation: none;
    }

    .button,
    .button:active {
        transition: none;
        transform: none;
    }
}