/*! tailwindcss v4.3.2 | MIT License | https://tailwindcss.com */
@layer properties;
@layer theme, base, components, utilities;
@layer theme {
  :root, :host {
    --font-sans: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji",
      "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
      "Courier New", monospace;
    --spacing: 0.25rem;
    --container-xs: 20rem;
    --container-7xl: 80rem;
    --text-xs: 0.75rem;
    --text-xs--line-height: calc(1 / 0.75);
    --text-sm: 0.875rem;
    --text-sm--line-height: calc(1.25 / 0.875);
    --text-base: 1rem;
    --text-base--line-height: calc(1.5 / 1);
    --text-lg: 1.125rem;
    --text-lg--line-height: calc(1.75 / 1.125);
    --text-xl: 1.25rem;
    --text-xl--line-height: calc(1.75 / 1.25);
    --text-2xl: 1.5rem;
    --text-2xl--line-height: calc(2 / 1.5);
    --text-3xl: 1.875rem;
    --text-3xl--line-height: calc(2.25 / 1.875);
    --font-weight-semibold: 600;
    --tracking-tight: -0.025em;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --default-transition-duration: 150ms;
    --default-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    --default-font-family: var(--font-sans);
    --default-mono-font-family: var(--font-mono);
    --color-dark-text: #e0ddd8;
    --color-medium-text: #8a8a90;
    --color-accent-gold: #d4a853;
    --color-warm-bg: rgba(255,255,255,0.05);
    --color-warm-card: rgba(255,255,255,0.03);
    --color-warm-border: rgba(255,255,255,0.08);
  }
}
@layer base {
  *, ::after, ::before, ::backdrop, ::file-selector-button {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border: 0 solid;
  }
  html, :host {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
    font-family: var(--default-font-family, ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");
    font-feature-settings: var(--default-font-feature-settings, normal);
    font-variation-settings: var(--default-font-variation-settings, normal);
    -webkit-tap-highlight-color: transparent;
  }
  hr {
    height: 0;
    color: inherit;
    border-top-width: 1px;
  }
  abbr:where([title]) {
    -webkit-text-decoration: underline dotted;
    text-decoration: underline dotted;
  }
  h1, h2, h3, h4, h5, h6 {
    font-size: inherit;
    font-weight: inherit;
  }
  a {
    color: inherit;
    -webkit-text-decoration: inherit;
    text-decoration: inherit;
  }
  b, strong {
    font-weight: bolder;
  }
  code, kbd, samp, pre {
    font-family: var(--default-mono-font-family, ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);
    font-feature-settings: var(--default-mono-font-feature-settings, normal);
    font-variation-settings: var(--default-mono-font-variation-settings, normal);
    font-size: 1em;
  }
  small {
    font-size: 80%;
  }
  sub, sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
  }
  sub {
    bottom: -0.25em;
  }
  sup {
    top: -0.5em;
  }
  table {
    text-indent: 0;
    border-color: inherit;
    border-collapse: collapse;
  }
  :-moz-focusring {
    outline: auto;
  }
  progress {
    vertical-align: baseline;
  }
  summary {
    display: list-item;
  }
  ol, ul, menu {
    list-style: none;
  }
  img, svg, video, canvas, audio, iframe, embed, object {
    display: block;
    vertical-align: middle;
  }
  img, video {
    max-width: 100%;
    height: auto;
  }
  button, input, select, optgroup, textarea, ::file-selector-button {
    font: inherit;
    font-feature-settings: inherit;
    font-variation-settings: inherit;
    letter-spacing: inherit;
    color: inherit;
    border-radius: 0;
    background-color: transparent;
    opacity: 1;
  }
  :where(select:is([multiple], [size])) optgroup {
    font-weight: bolder;
  }
  :where(select:is([multiple], [size])) optgroup option {
    padding-inline-start: 20px;
  }
  ::file-selector-button {
    margin-inline-end: 4px;
  }
  ::placeholder {
    opacity: 1;
  }
  @supports (not (-webkit-appearance: -apple-pay-button))  or (contain-intrinsic-size: 1px) {
    ::placeholder {
      color: currentcolor;
      @supports (color: color-mix(in lab, red, red)) {
        color: color-mix(in oklab, currentcolor 50%, transparent);
      }
    }
  }
  textarea {
    resize: vertical;
  }
  ::-webkit-search-decoration {
    -webkit-appearance: none;
  }
  ::-webkit-date-and-time-value {
    min-height: 1lh;
    text-align: inherit;
  }
  ::-webkit-datetime-edit {
    display: inline-flex;
  }
  ::-webkit-datetime-edit-fields-wrapper {
    padding: 0;
  }
  ::-webkit-datetime-edit, ::-webkit-datetime-edit-year-field, ::-webkit-datetime-edit-month-field, ::-webkit-datetime-edit-day-field, ::-webkit-datetime-edit-hour-field, ::-webkit-datetime-edit-minute-field, ::-webkit-datetime-edit-second-field, ::-webkit-datetime-edit-millisecond-field, ::-webkit-datetime-edit-meridiem-field {
    padding-block: 0;
  }
  ::-webkit-calendar-picker-indicator {
    line-height: 1;
  }
  :-moz-ui-invalid {
    box-shadow: none;
  }
  button, input:where([type="button"], [type="reset"], [type="submit"]), ::file-selector-button {
    appearance: button;
  }
  ::-webkit-inner-spin-button, ::-webkit-outer-spin-button {
    height: auto;
  }
  [hidden]:where(:not([hidden="until-found"])) {
    display: none !important;
  }
}
@layer utilities {
  .fixed {
    position: fixed;
  }
  .right-0 {
    right: 0;
  }
  .bottom-0 {
    bottom: 0;
  }
  .left-0 {
    left: 0;
  }
  .z-50 {
    z-index: 50;
  }
  .mx-auto {
    margin-inline: auto;
  }
  .mb-0\.5 {
    margin-bottom: calc(var(--spacing) * 0.5);
  }
  .mb-1 {
    margin-bottom: var(--spacing);
  }
  .mb-2 {
    margin-bottom: calc(var(--spacing) * 2);
  }
  .mb-3 {
    margin-bottom: calc(var(--spacing) * 3);
  }
  .mb-4 {
    margin-bottom: calc(var(--spacing) * 4);
  }
  .block {
    display: block;
  }
  .flex {
    display: flex;
  }
  .grid {
    display: grid;
  }
  .hidden {
    display: none;
  }
  .h-16 {
    height: calc(var(--spacing) * 16);
  }
  .h-20 {
    height: calc(var(--spacing) * 20);
  }
  .min-h-screen {
    min-height: 100vh;
  }
  .w-full {
    width: 100%;
  }
  .max-w-7xl {
    max-width: var(--container-7xl);
  }
  .max-w-xs {
    max-width: var(--container-xs);
  }
  .transform {
    transform: var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,);
  }
  .grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .flex-col {
    flex-direction: column;
  }
  .items-center {
    align-items: center;
  }
  .items-end {
    align-items: flex-end;
  }
  .justify-between {
    justify-content: space-between;
  }
  .justify-center {
    justify-content: center;
  }
  .gap-2 {
    gap: calc(var(--spacing) * 2);
  }
  .gap-8 {
    gap: calc(var(--spacing) * 8);
  }
  .space-y-2 {
    :where(& > :not(:last-child)) {
      --tw-space-y-reverse: 0;
      margin-block-start: calc(calc(var(--spacing) * 2) * var(--tw-space-y-reverse));
      margin-block-end: calc(calc(var(--spacing) * 2) * calc(1 - var(--tw-space-y-reverse)));
    }
  }
  .rounded-2xl {
    border-radius: var(--radius-2xl);
  }
  .rounded-xl {
    border-radius: var(--radius-xl);
  }
  .border {
    border-style: var(--tw-border-style);
    border-width: 1px;
  }
  .border-warm-border {
    border-color: var(--color-warm-border);
  }
  .bg-warm-bg {
    background-color: var(--color-warm-bg);
  }
  .bg-warm-card {
    background-color: var(--color-warm-card);
  }
  .p-2 {
    padding: calc(var(--spacing) * 2);
  }
  .p-2\.5 {
    padding: calc(var(--spacing) * 2.5);
  }
  .p-3 {
    padding: calc(var(--spacing) * 3);
  }
  .p-4 {
    padding: calc(var(--spacing) * 4);
  }
  .py-6 {
    padding-block: calc(var(--spacing) * 6);
  }
  .pb-32 {
    padding-bottom: calc(var(--spacing) * 32);
  }
  .text-center {
    text-align: center;
  }
  .text-2xl {
    font-size: var(--text-2xl);
    line-height: var(--tw-leading, var(--text-2xl--line-height));
  }
  .text-base {
    font-size: var(--text-base);
    line-height: var(--tw-leading, var(--text-base--line-height));
  }
  .text-sm {
    font-size: var(--text-sm);
    line-height: var(--tw-leading, var(--text-sm--line-height));
  }
  .text-xs {
    font-size: var(--text-xs);
    line-height: var(--tw-leading, var(--text-xs--line-height));
  }
  .font-semibold {
    --tw-font-weight: var(--font-weight-semibold);
    font-weight: var(--font-weight-semibold);
  }
  .tracking-tight {
    --tw-tracking: var(--tracking-tight);
    letter-spacing: var(--tracking-tight);
  }
  .text-accent-gold {
    color: var(--color-accent-gold);
  }
  .text-dark-text {
    color: var(--color-dark-text);
  }
  .text-medium-text {
    color: var(--color-medium-text);
  }
  .transition {
    transition-property: color, background-color, border-color, outline-color, text-decoration-color, fill, stroke, --tw-gradient-from, --tw-gradient-via, --tw-gradient-to, opacity, box-shadow, transform, translate, scale, rotate, filter, -webkit-backdrop-filter, backdrop-filter, display, content-visibility, overlay, pointer-events;
    transition-timing-function: var(--tw-ease, var(--default-transition-timing-function));
    transition-duration: var(--tw-duration, var(--default-transition-duration));
  }
  .transition-colors {
    transition-property: color, background-color, border-color, outline-color, text-decoration-color, fill, stroke, --tw-gradient-from, --tw-gradient-via, --tw-gradient-to;
    transition-timing-function: var(--tw-ease, var(--default-transition-timing-function));
    transition-duration: var(--tw-duration, var(--default-transition-duration));
  }
  .ease-out {
    --tw-ease: var(--ease-out);
    transition-timing-function: var(--ease-out);
  }
  .focus\:border-accent-gold {
    &:focus {
      border-color: var(--color-accent-gold);
    }
  }
  .focus\:outline-none {
    &:focus {
      --tw-outline-style: none;
      outline-style: none;
    }
  }
  .sm\:p-4 {
    @media (width >= 40rem) {
      padding: calc(var(--spacing) * 4);
    }
  }
  .md\:mb-1 {
    @media (width >= 48rem) {
      margin-bottom: var(--spacing);
    }
  }
  .md\:mb-2 {
    @media (width >= 48rem) {
      margin-bottom: calc(var(--spacing) * 2);
    }
  }
  .md\:mb-3 {
    @media (width >= 48rem) {
      margin-bottom: calc(var(--spacing) * 3);
    }
  }
  .md\:mb-4 {
    @media (width >= 48rem) {
      margin-bottom: calc(var(--spacing) * 4);
    }
  }
  .md\:mb-6 {
    @media (width >= 48rem) {
      margin-bottom: calc(var(--spacing) * 6);
    }
  }
  .md\:flex {
    @media (width >= 48rem) {
      display: flex;
    }
  }
  .md\:hidden {
    @media (width >= 48rem) {
      display: none;
    }
  }
  .md\:h-24 {
    @media (width >= 48rem) {
      height: calc(var(--spacing) * 24);
    }
  }
  .md\:gap-3 {
    @media (width >= 48rem) {
      gap: calc(var(--spacing) * 3);
    }
  }
  .md\:gap-6 {
    @media (width >= 48rem) {
      gap: calc(var(--spacing) * 6);
    }
  }
  .md\:space-y-3 {
    @media (width >= 48rem) {
      :where(& > :not(:last-child)) {
        --tw-space-y-reverse: 0;
        margin-block-start: calc(calc(var(--spacing) * 3) * var(--tw-space-y-reverse));
        margin-block-end: calc(calc(var(--spacing) * 3) * calc(1 - var(--tw-space-y-reverse)));
      }
    }
  }
  .md\:p-3 {
    @media (width >= 48rem) {
      padding: calc(var(--spacing) * 3);
    }
  }
  .md\:p-4 {
    @media (width >= 48rem) {
      padding: calc(var(--spacing) * 4);
    }
  }
  .md\:p-6 {
    @media (width >= 48rem) {
      padding: calc(var(--spacing) * 6);
    }
  }
  .md\:py-8 {
    @media (width >= 48rem) {
      padding-block: calc(var(--spacing) * 8);
    }
  }
  .md\:pb-8 {
    @media (width >= 48rem) {
      padding-bottom: calc(var(--spacing) * 8);
    }
  }
  .md\:text-3xl {
    @media (width >= 48rem) {
      font-size: var(--text-3xl);
      line-height: var(--tw-leading, var(--text-3xl--line-height));
    }
  }
  .md\:text-base {
    @media (width >= 48rem) {
      font-size: var(--text-base);
      line-height: var(--tw-leading, var(--text-base--line-height));
    }
  }
  .md\:text-lg {
    @media (width >= 48rem) {
      font-size: var(--text-lg);
      line-height: var(--tw-leading, var(--text-lg--line-height));
    }
  }
  .md\:text-sm {
    @media (width >= 48rem) {
      font-size: var(--text-sm);
      line-height: var(--tw-leading, var(--text-sm--line-height));
    }
  }
  .md\:text-xl {
    @media (width >= 48rem) {
      font-size: var(--text-xl);
      line-height: var(--tw-leading, var(--text-xl--line-height));
    }
  }
  .lg\:mb-8 {
    @media (width >= 64rem) {
      margin-bottom: calc(var(--spacing) * 8);
    }
  }
  .lg\:p-8 {
    @media (width >= 64rem) {
      padding: calc(var(--spacing) * 8);
    }
  }
}
@property --tw-rotate-x {
  syntax: "*";
  inherits: false;
}
@property --tw-rotate-y {
  syntax: "*";
  inherits: false;
}
@property --tw-rotate-z {
  syntax: "*";
  inherits: false;
}
@property --tw-skew-x {
  syntax: "*";
  inherits: false;
}
@property --tw-skew-y {
  syntax: "*";
  inherits: false;
}
@property --tw-space-y-reverse {
  syntax: "*";
  inherits: false;
  initial-value: 0;
}
@property --tw-border-style {
  syntax: "*";
  inherits: false;
  initial-value: solid;
}
@property --tw-font-weight {
  syntax: "*";
  inherits: false;
}
@property --tw-tracking {
  syntax: "*";
  inherits: false;
}
@property --tw-ease {
  syntax: "*";
  inherits: false;
}
@layer properties {
  @supports ((-webkit-hyphens: none) and (not (margin-trim: inline))) or ((-moz-orient: inline) and (not (color:rgb(from red r g b)))) {
    *, ::before, ::after, ::backdrop {
      --tw-rotate-x: initial;
      --tw-rotate-y: initial;
      --tw-rotate-z: initial;
      --tw-skew-x: initial;
      --tw-skew-y: initial;
      --tw-space-y-reverse: 0;
      --tw-border-style: solid;
      --tw-font-weight: initial;
      --tw-tracking: initial;
      --tw-ease: initial;
    }
  }
}


/* === Custom styles === */
        body {
            font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: #0e0e12;
            color: #e0ddd8;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        .card {
            background-color: rgba(255,255,255,0.04);
            border-radius: 2rem;
            box-shadow: 0 2px 4px 0 rgba(0,0,0,0.00), 0 1px 2px -1px rgba(0,0,0,0.00), 0 4px 6px -1px rgba(0,0,0,0.08);
            border: 1px solid rgba(255,255,255,0.06);
        }

        .speedometer {
            position: relative;
            width: min(420px, 80vw);
            height: min(420px, 80vw);
            border-radius: 50%;
            overflow: hidden;
        }

        @media (max-width: 640px) {
            .speedometer {
                width: min(320px, 75vw);
                height: min(320px, 75vw);
            }
        }

        #speedometerCanvas {
            display: block;
        }

        .control-btn {
            transition: all 0.15s ease;
            border-radius: 1rem;
            font-weight: 500;
            letter-spacing: -0.01em;
            background: none;
            border: none;
            box-shadow: none;
            padding: 8px;
        }

        .control-btn:disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }

        .control-btn:active:not(:disabled),
        .control-btn.is-pressed {
            transform: translateY(4px);
            box-shadow: none;
        }

        .acceleration-btn {
            background: none;
            color: #8a8a90;
        }

        .acceleration-btn:active:not(:disabled),
        .acceleration-btn.is-pressed {
            color: #e0ddd8;
        }

        .brake-btn {
            background: none;
            color: #8a8a90;
        }

        .brake-btn:active:not(:disabled),
        .brake-btn.is-pressed {
            color: #ff3b30;
        }

        .status-indicator {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }

        .info-card {
            transition: all 0.2s ease;
            border-radius: 1.5rem;
            background-color: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.06);
        }

        select {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238a8a90' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
            background-repeat: no-repeat;
            background-position: right 0.75rem center;
            background-size: 1rem;
        }

        select option {
            background-color: #1a1a1e;
            color: #e0ddd8;
        }

        /* 桌面端：三列布局 */
        .main-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 1024px) {
            .main-layout {
                grid-template-columns: 1fr 1.4fr 1fr;
                gap: 1.5rem;
            }
        }

        @media (min-width: 768px) and (max-width: 1023px) {
            .main-layout {
                grid-template-columns: 1fr 1.4fr;
                gap: 1.25rem;
            }
            .main-layout .left-panel {
                grid-column: 1;
                grid-row: 1;
            }
            .main-layout .center-panel {
                grid-column: 2;
                grid-row: 1 / 3;
            }
            .main-layout .right-panel {
                grid-column: 1;
                grid-row: 2;
            }
        }

        /* 手机端：车型选择折叠 */
        @media (max-width: 767px) {
            .main-layout {
                grid-template-columns: 1fr;
            }
            .left-panel .card {
                padding: 1rem;
            }
            .left-panel .car-info-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }
            .center-panel .card {
                padding: 1rem;
            }
        }

        /* 手机端底部固定控制按钮 */
        @media (max-width: 767px) {
            .mobile-controls {
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                background: rgba(14,14,18,0.9);
                padding: 12px 16px;
                padding-bottom: max(12px, env(safe-area-inset-bottom));
                z-index: 100;
                display: flex;
                gap: 12px;
            }
            .mobile-controls button {
                flex: 1;
                min-height: 56px;
            }
            body {
                padding-bottom: 90px;
            }
        }

        @media (min-width: 768px) {
            .mobile-controls {
                display: none;
            }
        }

        /* 桌面端隐藏移动端按钮区 */
        .desktop-controls {
            display: flex;
        }
        @media (max-width: 767px) {
            .desktop-controls {
                display: none;
            }
        }

        .fade-in {
            animation: fadeIn 0.5s ease-out;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .slide-up {
            animation: slideUp 0.5s ease-out;
        }

        @keyframes slideUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .key-hint {
            display: inline-block;
            padding: 2px 8px;
            background: rgba(255,255,255,0.08);
            border-radius: 0.5rem;
            font-size: 0.75rem;
            font-weight: 500;
            color: rgba(255,255,255,0.5);
            margin-left: 4px;
            border: 1px solid rgba(255,255,255,0.1);
        }