/* mirror_flow:p6_ai_generated */
:root {
    --color-primary: #1a6b8a;
    --color-primary-light: #2188a9;
    --color-primary-dark: #0f5268;
    --color-secondary: #e88d2a;
    --color-secondary-light: #f0a44d;
    --color-accent: #2d9cdb;
    --color-bg: #f7f9fb;
    --color-bg-alt: #eef3f7;
    --color-surface: #ffffff;
    --color-text: #2c3e50;
    --color-text-light: #5a6c7d;
    --color-text-muted: #8899aa;
    --color-border: #dde4ec;
    --color-success: #27ae60;
    --color-error: #e74c3c;
    --color-warning: #f39c12;
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-serif: "Noto Serif SC", "STSong", "SimSun", serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12), 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.15), 0 8px 24px rgba(0, 0, 0, 0.1);
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --container-max: 1280px;
    --container-padding: 24px;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
}

ul, ol {
    list-style: none;
}

input, button, textarea, select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    min-height: 64px;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.header__logo img {
    height: 48px;
    width: auto;
}

.header__logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary-dark);
    white-space: nowrap;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.header__nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
    position: relative;
}

.header__nav-link::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: calc(100% - 16px);
    height: 2px;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base);
}

.header__nav-link:hover,
.header__nav-link.active {
    color: var(--color-primary);
}

.header__nav-link:hover::after,
.header__nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header__menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
    cursor: pointer;
}

.header__menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.header__menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 10px 24px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.btn--primary {
    background-color: var(--color-primary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(26, 107, 138, 0.35);
}

.btn--primary:hover {
    background-color: var(--color-primary-light);
    box-shadow: 0 4px 16px rgba(26, 107, 138, 0.45);
    color: #ffffff;
    transform: translateY(-1px);
}

.btn--primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(26, 107, 138, 0.35);
}

.btn--secondary {
    background-color: var(--color-secondary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(232, 141, 42, 0.35);
}

.btn--secondary:hover {
    background-color: var(--color-secondary-light);
    box-shadow: 0 4px 16px rgba(232, 141, 42, 0.45);
    color: #ffffff;
    transform: translateY(-1px);
}

.btn--outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn--outline:hover {
    background-color: var(--color-primary);
    color: #ffffff;
}

.btn--ghost {
    background-color: transparent;
    color: var(--color-text-light);
}

.btn--ghost:hover {
    background-color: var(--color-bg-alt);
    color: var(--color-text);
}

.btn--lg {
    padding: 14px 32px;
    font-size: var(--font-size-base);
}

.btn--sm {
    padding: 6px 16px;
    font-size: var(--font-size-xs);
}

.hero {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, var(--color-accent) 100%);
    color: #ffffff;
    overflow: hidden;
    min-height: 520px;
    display: flex;
    align-items: center;
}

.hero::before {
    content: "";
    position: absolute;
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -20%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    padding: var(--spacing-4xl) 0;
}

.hero__content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.hero__tagline {
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.hero__title em {
    font-style: normal;
    color: var(--color-secondary);
}

.hero__desc {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    max-width: 500px;
}

.hero__actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.hero__image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-height: 400px;
    object-fit: cover;
    width: 100%;
}

.hero-search {
    display: flex;
    gap: var(--spacing-sm);
    background-color: var(--color-surface);
    border-radius: var(--radius-full);
    padding: 6px;
    box-shadow: var(--shadow-lg);
    margin-top: var(--spacing-md);
}

.hero-search__input {
    flex: 1;
    border: none;
    outline: none;
    padding: 12px 20px;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    background: transparent;
    min-width: 0;
}

.hero-search__input::placeholder {
    color: var(--color-text-muted);
}

.hero-search .btn {
    flex-shrink: 0;
}

.section {
    padding: var(--spacing-4xl) 0;
}

.section--alt {
    background-color: var(--color-bg-alt);
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section__label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.section__title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

.section__desc {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card__image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card__image img {
    transform: scale(1.05);
}

.card__badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background-color: var(--color-secondary);
    color: #ffffff;
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.card__body {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
}

.card__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
}

.card__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.card__meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.card__desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.6;
}

.card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}

.card__price {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-secondary);
}

.card__price span {
    font-size: var(--font-size-xs);
    font-weight: 400;
    color: var(--color-text-muted);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-xl);
    text-align: center;
}

.feature {
    padding: var(--spacing-xl);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.feature__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--color