/* ===================================================================
   Ant Design 5.x Design Specification
   Primary: Brand Orange #e78630
   Font: -apple-system stack, 14px base, 1.5714 line-height
   Spacing unit: 4px (4, 8, 12, 16, 24, 32, 48, 64, 96)
   Border radius: 6px (default), 8px (lg)
   =================================================================== */

/* ---------- Tokens ---------- */
:root {
    /* Brand Orange palette */
    --primary-1: #fff7e6;
    --primary-2: #ffe7ba;
    --primary-3: #ffd591;
    --primary-4: #ffc069;
    --primary-5: #f5a623;
    --primary-6: #e78630;
    --primary-7: #c26a15;
    --primary-8: #9e5000;
    --primary-9: #7a3d00;
    --primary-10: #562b00;

    /* Functional */
    --success: #52c41a;
    --warning: #faad14;
    --error: #ff4d4f;

    /* Text */
    --text-primary: rgba(0, 0, 0, 0.88);
    --text-secondary: rgba(0, 0, 0, 0.65);
    --text-tertiary: rgba(0, 0, 0, 0.45);
    --text-quaternary: rgba(0, 0, 0, 0.25);

    /* Background */
    --bg-base: #ffffff;
    --bg-layout: #f5f5f5;
    --bg-elevated: #ffffff;
    --bg-spotlight: #fafafa;

    /* Border */
    --border-color: #d9d9d9;
    --border-color-secondary: #f0f0f0;

    /* Shadow (Ant Design 5.x token) */
    --shadow-1: 0 1px 2px 0 rgba(0, 0, 0, 0.03), 0 1px 6px -1px rgba(0, 0, 0, 0.02), 0 2px 4px 0 rgba(0, 0, 0, 0.02);
    --shadow-2: 0 3px 6px -4px rgba(0, 0, 0, 0.12), 0 6px 16px 0 rgba(0, 0, 0, 0.08), 0 9px 28px 8px rgba(0, 0, 0, 0.05);
    --shadow-3: 0 6px 16px -8px rgba(0, 0, 0, 0.08), 0 9px 28px 0 rgba(0, 0, 0, 0.05), 0 12px 48px 16px rgba(0, 0, 0, 0.03);

    /* Radius */
    --radius: 6px;
    --radius-lg: 8px;

    /* Font */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
    --font-size: 14px;
    --font-size-sm: 12px;
    --font-size-lg: 16px;
    --font-size-xl: 20px;
    --font-size-heading-1: 38px;
    --font-size-heading-2: 30px;
    --font-size-heading-3: 24px;
    --font-size-heading-4: 20px;
    --font-size-heading-5: 16px;
    --line-height: 1.5714;
    --line-height-lg: 1.5;
    --line-height-heading: 1.3333;
}

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

html {
    font-size: var(--font-size);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-layout);
    line-height: var(--line-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: var(--primary-6);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-5);
}

/* ---------- GitHub Ribbon ---------- */
.github {
    position: fixed;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    overflow: hidden;
    z-index: 1000;
}

.github a {
    display: block;
    width: 220px;
    position: absolute;
    top: 44px;
    right: -55px;
    transform: rotate(45deg);
    background: var(--primary-6);
    color: #fff;
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: 6px 0;
    letter-spacing: 0.3px;
    box-shadow: none;
    transition: background 0.2s;
}

.github a:hover {
    background: var(--primary-5);
    color: #fff;
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 64px 24px;
    background: var(--bg-base);
    overflow: hidden;
}

/* 背景装饰 */
.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.hero::before {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -100px;
    background: radial-gradient(circle, var(--primary-1) 0%, transparent 70%);
}

.hero::after {
    width: 500px;
    height: 500px;
    bottom: -150px;
    left: -100px;
    background: radial-gradient(circle, var(--primary-1) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    background: var(--primary-6);
    margin-bottom: 24px;
    box-shadow: var(--shadow-2);
}

.hero-logo svg {
    width: 44px;
    height: 44px;
    fill: #fff;
}

.hero h1 {
    font-size: var(--font-size-heading-1);
    font-weight: 700;
    line-height: var(--line-height-heading);
    color: var(--text-primary);
    margin-bottom: 4px;
}

.hero h1 .highlight {
    color: var(--primary-6);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: var(--line-height);
    margin-bottom: 24px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.hero-tags {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

/* Ant Tag */
.ant-tag {
    display: inline-block;
    height: 22px;
    padding: 0 8px;
    font-size: var(--font-size-sm);
    line-height: 22px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color-secondary);
    background: var(--bg-spotlight);
    color: var(--text-secondary);
    white-space: nowrap;
}

.ant-tag-primary {
    color: var(--primary-7);
    background: var(--primary-1);
    border-color: var(--primary-2);
}

.ant-tag-cyan {
    color: #08979c;
    background: #e6fffb;
    border-color: #87e8de;
}

.ant-tag-green {
    color: #389e0d;
    background: #f6ffed;
    border-color: #b7eb8f;
}

.ant-tag-orange {
    color: #d46b08;
    background: #fff7e6;
    border-color: #ffd591;
}

.ant-tag-gold {
    color: #d48806;
    background: #fffbe6;
    border-color: #ffe58f;
}

.ant-tag-purple {
    color: #531dab;
    background: #f9f0ff;
    border-color: #d3adf7;
}

/* Ant Button */
.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.ant-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 40px;
    padding: 0 24px;
    font-size: var(--font-size);
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    font-family: inherit;
}

.ant-btn-primary {
    background: var(--primary-6);
    color: #fff;
    border-color: var(--primary-6);
    box-shadow: 0 2px 0 rgba(231, 134, 48, 0.1);
}

.ant-btn-primary:hover {
    background: var(--primary-5);
    border-color: var(--primary-5);
}

.ant-btn-default {
    background: var(--bg-base);
    color: var(--text-primary);
    border-color: var(--border-color);
    box-shadow: 0 2px 0 rgba(0, 0, 0, 0.02);
}

.ant-btn-default:hover {
    color: var(--primary-5);
    border-color: var(--primary-5);
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-quaternary);
    font-size: var(--font-size-sm);
    animation: scrollFloat 2.4s ease-in-out infinite;
}

.scroll-indicator::after {
    content: "";
    display: block;
    width: 16px;
    height: 16px;
    margin: 8px auto 0;
    border-right: 1.5px solid var(--text-quaternary);
    border-bottom: 1.5px solid var(--text-quaternary);
    transform: rotate(45deg);
}

@keyframes scrollFloat {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateX(-50%) translateY(8px);
        opacity: 0.5;
    }
}

/* ---------- Section ---------- */
.section {
    padding: 64px 24px;
}

.section-white {
    background: var(--bg-base);
}

.section-grey {
    background: var(--bg-layout);
}

.container {
    max-width: 1080px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: var(--font-size-heading-2);
    font-weight: 600;
    color: var(--text-primary);
    line-height: var(--line-height-heading);
    margin-bottom: 8px;
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--text-tertiary);
    line-height: var(--line-height);
}

/* ---------- Ant Card (Feature) ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.ant-card {
    background: var(--bg-base);
    border: 1px solid var(--border-color-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: box-shadow 0.2s, border-color 0.2s;
}

.ant-card:hover {
    box-shadow: var(--shadow-2);
    border-color: transparent;
}

.ant-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 20px;
}

.ant-card-icon-primary {
    background: var(--primary-1);
    color: var(--primary-6);
}

.ant-card-icon-cyan {
    background: #e6fffb;
    color: #13c2c2;
}

.ant-card-icon-green {
    background: #f6ffed;
    color: #52c41a;
}

.ant-card-icon-gold {
    background: #fffbe6;
    color: #faad14;
}

.ant-card-icon-purple {
    background: #f9f0ff;
    color: #722ed1;
}

.ant-card-icon-red {
    background: #fff2f0;
    color: #ff4d4f;
}

.ant-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    line-height: var(--line-height-heading);
    margin-bottom: 8px;
}

.ant-card p {
    font-size: var(--font-size);
    color: var(--text-secondary);
    line-height: var(--line-height);
}

/* ---------- Steps ---------- */
.steps-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.ant-step {
    position: relative;
}

.ant-step-indicator {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-6);
    color: #fff;
    font-size: var(--font-size);
    font-weight: 600;
    margin-bottom: 12px;
}

.ant-step h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

/* ---------- Code Block ---------- */
.code-block {
    background: #282c34;
    border-radius: var(--radius-lg);
    padding: 16px 24px;
    overflow-x: auto;
}

.code-block code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: var(--font-size);
    color: #abb2bf;
    line-height: 1.8;
    white-space: pre;
}

.code-block .c-comment {
    color: #5c6370;
    font-style: italic;
}

.code-block .c-key {
    color: #c678dd;
}

.code-block .c-value {
    color: #98c379;
}

.code-block .c-flag {
    color: #e5c07b;
}

.code-block .c-cmd {
    color: #61afef;
}

/* ---------- Tabs (Config) ---------- */
.ant-tabs-nav {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border-color-secondary);
    margin-bottom: 24px;
}

.ant-tabs-tab {
    padding: 12px 16px;
    font-size: var(--font-size);
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
    margin-bottom: -1px;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: inherit;
}

.ant-tabs-tab:hover {
    color: var(--primary-5);
}

.ant-tabs-tab.active {
    color: var(--primary-6);
    border-bottom-color: var(--primary-6);
    font-weight: 600;
}

.ant-tabs-panel {
    display: none;
}

.ant-tabs-panel.active {
    display: block;
}

/* ---------- Deploy Grid ---------- */
.deploy-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.deploy-card {
    background: var(--bg-base);
    border: 1px solid var(--border-color-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: box-shadow 0.2s, border-color 0.2s;
}

.deploy-card:hover {
    box-shadow: var(--shadow-2);
    border-color: transparent;
}

.deploy-card-icon {
    font-size: 32px;
    margin-bottom: 12px;
    line-height: 1;
}

.deploy-card h3 {
    font-size: var(--font-size);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.deploy-card p {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    line-height: var(--line-height);
}

/* ---------- Footer ---------- */
.footer {
    background: var(--bg-base);
    border-top: 1px solid var(--border-color-secondary);
    padding: 24px;
    text-align: center;
}

.footer p {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    line-height: 1.8;
}

.footer a {
    color: var(--text-secondary);
}

.footer a:hover {
    color: var(--primary-6);
}

/* ---------- Click Effect ---------- */
.click-text {
    position: absolute;
    font-weight: 600;
    font-size: var(--font-size-sm);
    pointer-events: none;
    z-index: 9999;
    user-select: none;
}

/* ---------- Fade In ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .hero {
        padding: 48px 16px;
    }

    .hero h1 {
        font-size: var(--font-size-heading-2);
    }

    .section {
        padding: 48px 16px;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .section-header h2 {
        font-size: var(--font-size-heading-3);
    }

    .card-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .steps-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .deploy-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .github {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: var(--font-size-heading-3);
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .deploy-grid {
        grid-template-columns: 1fr;
    }
}