:root {
    /* ── 主色：香槟金（强调、描边、渐变） ── */
    --primary-color: #e3c290;
    --primary-dark: #c19c62;
    --primary-soft: rgba(227, 194, 144, 0.07);
    --primary-line: rgba(227, 194, 144, 0.24);
    --primary-glow: rgba(227, 194, 144, 0.14);

    /* ── 辅色：冷钢蓝（与金形成冷暖对照） ── */
    --secondary-color: #9cb3ca;
    --secondary-soft: rgba(156, 179, 202, 0.08);
    --secondary-line: rgba(156, 179, 202, 0.24);

    /* ── 点缀：赤铜 ── */
    --accent-color: #d79a6b;

    /* ── 底色：墨黑（中性，不带蓝调） ── */
    --bg-darker: #08090b;
    --bg-dark: #0e0f13;
    --bg-raise: #12131a;

    --text-primary: #f3f1ec;
    --text-secondary: #a6a29a;
    --text-muted: #827e76;

    --border-color: rgba(255, 255, 255, 0.07);
    --border-strong: rgba(255, 255, 255, 0.13);

    --card-bg: rgba(255, 255, 255, 0.026);
    --code-bg: #0b0c0f;
    --success-color: #8cc4a4;

    --hairline: linear-gradient(90deg, transparent, rgba(227, 194, 144, 0.45), transparent);
    --shadow-deep: 0 24px 60px rgba(0, 0, 0, 0.55);
    --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    overflow-wrap: break-word;
    background: var(--bg-darker);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: "kern" 1, "liga" 1, "cv11" 1;
}

::selection {
    background: rgba(227, 194, 144, 0.24);
    color: #fffdf8;
}

::-webkit-scrollbar {
    width: 11px;
    height: 11px;
}

::-webkit-scrollbar-track {
    background: #060708;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border: 3px solid #060708;
    border-radius: 8px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(227, 194, 144, 0.38);
}

code, pre {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
}

/* 锚点定位时避开固定导航栏 */
section[id] {
    scroll-margin-top: 5.5rem;
}

/* 键盘可见焦点，金色描边 */
a:focus-visible,
button:focus-visible {
    outline: 2px solid rgba(227, 194, 144, 0.6);
    outline-offset: 3px;
    border-radius: 0.35rem;
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.gradient-bg {
    position: absolute;
    width: 200%;
    height: 200%;
    /* 单点暖光 + 冷光极弱对撞，避免彩色雾感，保持墨黑底色 */
    background:
        radial-gradient(ellipse 46% 34% at 22% 0%, rgba(227, 194, 144, 0.075) 0%, transparent 66%),
        radial-gradient(ellipse 40% 30% at 86% 8%, rgba(156, 179, 202, 0.05) 0%, transparent 70%),
        radial-gradient(ellipse 70% 40% at 50% 108%, rgba(0, 0, 0, 0.55) 0%, transparent 72%);
    animation: gradient-shift 26s ease-in-out infinite;
}

@keyframes gradient-shift {
    0%, 100% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(-18px, -14px, 0); }
}

.grid-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.014) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.014) 1px, transparent 1px);
    background-size: 72px 72px;
    /* 网格向四周淡出，只在中部保留极轻的结构感 */
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 0%, transparent 78%);
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 0%, transparent 78%);
    animation: grid-move 40s linear infinite;
}

@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(72px, 72px); }
}

/* 胶片颗粒：让大面积深色不"发闷"，是质感的关键一层 */
.background-animation::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.1;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
    pointer-events: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(8, 9, 11, 0.62);
    backdrop-filter: blur(22px) saturate(180%);
    -webkit-backdrop-filter: blur(22px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.logo-icon {
    font-size: 1.35rem;
    filter: saturate(0.8);
}

.logo-text {
    background: linear-gradient(100deg, #f6f4ef 20%, var(--primary-color) 120%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.75rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 450;
    font-size: 0.9375rem;
    transition: color 0.25s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.github-link {
    padding: 0.45rem 0.95rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-strong);
    border-radius: 0.5rem;
    transition: all 0.25s ease;
}

.github-link:hover {
    background: var(--primary-soft);
    border-color: var(--primary-line);
    color: var(--primary-color) !important;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 1.5rem;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    padding: 9rem 0 4.5rem;
    position: relative;
}

.hero > .container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 28rem);
    gap: 3.5rem;
    align-items: center;
}

.hero-content {
    max-width: 40rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.45rem 0.95rem 0.45rem 0.8rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
    border: 1px solid var(--border-strong);
    border-radius: 2rem;
    font-size: 0.8125rem;
    letter-spacing: 0.01em;
    color: var(--text-secondary);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
    margin-bottom: 2rem;
    animation: fade-in-up 0.8s ease;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--success-color);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(140, 196, 164, 0.14);
    animation: pulse 2.6s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 3px rgba(140, 196, 164, 0.14); }
    50% { opacity: 0.55; box-shadow: 0 0 0 6px rgba(140, 196, 164, 0.04); }
}

.hero-title {
    font-size: clamp(2.25rem, 2.9vw, 3.1rem);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -0.035em;
    margin-bottom: 1.5rem;
    animation: fade-in-up 0.8s ease 0.2s both;
}

.gradient-text {
    background: linear-gradient(112deg, #faf8f3 0%, #eddcbe 38%, var(--primary-color) 68%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.75;
    color: var(--text-secondary);
    max-width: 46rem;
    margin-bottom: 2.25rem;
    animation: fade-in-up 0.8s ease 0.4s both;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 4rem;
    animation: fade-in-up 0.8s ease 0.6s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8125rem 1.65rem;
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    text-decoration: none;
    border-radius: 0.625rem;
    transition: transform 0.25s cubic-bezier(0.2, 0.7, 0.3, 1), box-shadow 0.25s ease, background 0.25s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(180deg, #f0d6ab 0%, var(--primary-color) 42%, var(--primary-dark) 100%);
    color: #17130c;
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.35) inset,
                0 10px 26px rgba(0, 0, 0, 0.45),
                0 0 0 1px rgba(227, 194, 144, 0.28);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset,
                0 16px 34px rgba(0, 0, 0, 0.5),
                0 0 22px rgba(227, 194, 144, 0.22);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.035);
    color: var(--text-primary);
    border: 1px solid var(--border-strong);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.22);
    transform: translateY(-1px);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    animation: fade-in-up 0.8s ease 0.8s both;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 2.25rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    background: linear-gradient(160deg, #f8f5ef 0%, var(--primary-color) 90%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.8125rem;
    letter-spacing: 0.02em;
    margin-top: 0.15rem;
}

.hero-visual {
    max-width: 100%;
    animation: fade-in 1s ease 0.4s both;
}

.code-window {
    position: relative;
    background: linear-gradient(180deg, rgba(20, 21, 26, 0.92), rgba(11, 12, 15, 0.96));
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-strong);
    border-radius: 0.875rem;
    overflow: hidden;
    box-shadow: var(--shadow-deep), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* 顶部一道极细的金色高光，是"贵"的关键细节 */
.code-window::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--hairline);
    opacity: 0.7;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.25rem;
    background: rgba(255, 255, 255, 0.022);
    border-bottom: 1px solid var(--border-color);
}

.code-dots {
    display: flex;
    gap: 0.45rem;
}

.code-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
}

.code-dots span:nth-child(1) { background: rgba(255, 255, 255, 0.16); }
.code-dots span:nth-child(2) { background: rgba(255, 255, 255, 0.11); }
.code-dots span:nth-child(3) { background: rgba(255, 255, 255, 0.07); }

.code-title {
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.code-content {
    padding: 1.25rem 1.35rem;
    font-size: 0.75rem;
    line-height: 1.95;
    overflow-x: auto;
}

.code-content pre {
    margin: 0;
    white-space: pre;
}

.code-content code {
    display: block;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    color: var(--text-primary);
}

.comment {
    color: #6d7480;
    font-style: italic;
}
.keyword {
    color: #d9b57a;
    font-weight: 600;
}
.string {
    color: #8fbfa4;
}
.output {
    color: #10b981;
    font-weight: 500;
}
.key {
    color: #93aec9;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Features Section */
.features {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
}

.section-title::after {
    content: '';
    display: block;
    width: 52px;
    height: 1px;
    margin: 1.35rem auto 0;
    background: var(--hairline);
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--text-muted);
    letter-spacing: 0.005em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    gap: 2rem;
}

.feature-card {
    position: relative;
    padding: 1.9rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.038) 0%, rgba(255, 255, 255, 0.012) 100%);
    backdrop-filter: blur(14px);
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.045);
    transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.3, 1),
                border-color 0.3s ease,
                box-shadow 0.3s ease;
}

/* 悬停时从顶部透出一线金色，替代廉价的彩色光晕 */
.feature-card::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 12%;
    right: 12%;
    height: 1px;
    background: var(--hairline);
    opacity: 0;
    transition: opacity 0.35s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-strong);
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 1.9rem;
    line-height: 1;
    margin-bottom: 1.1rem;
    filter: drop-shadow(0 4px 12px rgba(227, 194, 144, 0.18));
}

.feature-card h3 {
    font-size: 1.1875rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    margin-bottom: 0.7rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* Architecture Section */
.architecture {
    padding: 6rem 0;
    background: rgba(255, 255, 255, 0.014);
}

.architecture-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.arch-diagram {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.arch-layer {
    padding: 1.35rem 1.5rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.032), rgba(255, 255, 255, 0.008));
    backdrop-filter: blur(14px);
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.arch-layer:hover {
    border-color: var(--border-strong);
}

.arch-layer.highlight {
    border-color: var(--primary-line);
    background: linear-gradient(180deg, rgba(227, 194, 144, 0.06), rgba(227, 194, 144, 0.015));
    box-shadow: inset 0 1px 0 rgba(227, 194, 144, 0.12), 0 0 40px rgba(227, 194, 144, 0.05);
}

.layer-title {
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    margin-bottom: 0.85rem;
    color: var(--primary-color);
}

.layer-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.layer-item {
    padding: 0.2rem 0.65rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.arch-arrow {
    text-align: center;
    color: var(--text-muted);
    font-size: 1rem;
    letter-spacing: 0.2em;
}

.arch-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.arch-feature {
    padding: 1.35rem 1.5rem;
    background: rgba(255, 255, 255, 0.018);
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    border-left: 1px solid var(--primary-line);
}

.arch-feature h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    margin-bottom: 0.55rem;
    color: var(--primary-color);
}

.arch-feature p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* Examples Section */
.examples {
    padding: 6rem 0;
    background: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(227, 194, 144, 0.045), transparent 70%);
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.example-item {
    position: relative;
    padding: 1.9rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.034), rgba(255, 255, 255, 0.01));
    backdrop-filter: blur(14px);
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.3, 1),
                border-color 0.35s ease,
                box-shadow 0.35s ease;
    overflow: hidden;
}

.example-item::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(227, 194, 144, 0.8), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.example-item:hover::before {
    opacity: 1;
}

.example-item:hover {
    transform: translateY(-4px);
    border-color: var(--border-strong);
    box-shadow: 0 26px 56px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.example-icon {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    display: inline-block;
    filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.4));
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.example-item h4 {
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.example-command {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8125rem;
    color: #e6c8a6;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.7rem 0.9rem;
    border-radius: 0.5rem;
    border-left: 1px solid var(--primary-line);
    margin: 1rem 0;
    line-height: 1.7;
    word-break: break-word;
    overflow-x: auto;
}

.example-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.example-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.example-tools span {
    font-size: 0.6875rem;
    font-family: 'JetBrains Mono', monospace;
    padding: 0.28rem 0.6rem;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid var(--border-color);
    border-radius: 0.3rem;
    color: var(--text-muted);
    font-weight: 400;
    letter-spacing: 0.01em;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.example-tools span:hover {
    color: var(--primary-color);
    border-color: var(--primary-line);
    background: var(--primary-soft);
}

/* Scenarios Section */
.scenarios {
    padding: 6rem 0;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
    gap: 2rem;
}

.scenario-card {
    position: relative;
    padding: 1.9rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.028), rgba(255, 255, 255, 0.008));
    backdrop-filter: blur(14px);
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.scenario-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, transparent, var(--primary-color), transparent);
    opacity: 0;
    transition: opacity 0.35s ease;
}

.scenario-card:hover::before {
    opacity: 0.85;
}

.scenario-card:hover {
    border-color: var(--border-strong);
    box-shadow: 0 22px 46px rgba(0, 0, 0, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.scenario-number {
    position: absolute;
    top: 0.9rem;
    right: 1.1rem;
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: -0.04em;
    color: rgba(255, 255, 255, 0.055);
    font-variant-numeric: tabular-nums;
}

.scenario-icon {
    font-size: 1.75rem;
    margin-bottom: 0.9rem;
}

.scenario-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    margin-bottom: 0.7rem;
}

.scenario-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.1rem;
}

.scenario-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.scenario-tags span {
    padding: 0.22rem 0.6rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 0.3rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6875rem;
    color: var(--secondary-color);
}

/* Quick Start Section */
.quickstart {
    padding: 6rem 0;
    background: rgba(255, 255, 255, 0.014);
}

.quickstart-steps {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-bottom: 3rem;
}

.step {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: start;
}

.step-number {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
    border: 1px solid var(--primary-line);
    border-radius: 0.625rem;
    color: var(--primary-color);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.step-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    margin-bottom: 0.9rem;
}

.code-block {
    position: relative;
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.625rem;
    padding: 1.15rem 1.2rem;
    overflow-x: auto;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
    scrollbar-width: thin;
}

.code-block pre {
    margin: 0;
    font-size: 0.75rem;
    line-height: 1.9;
    /* 窄栏时换行而不是截断，保证示例完整可见 */
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.code-block code {
    font-size: inherit;
}

.quickstart-cta {
    text-align: center;
}

/* Resources & Prompts Section */
.resources-prompts {
    padding: 6rem 0;
    background: radial-gradient(ellipse 70% 45% at 50% 100%, rgba(156, 179, 202, 0.05), transparent 70%);
}

.rp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.rp-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.008));
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    padding: 1.9rem;
    text-align: center;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.rp-card:hover {
    border-color: var(--border-strong);
    box-shadow: 0 22px 46px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.rp-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.rp-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.rp-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.rp-features {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.rp-features span {
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.3rem 0.7rem;
    border-radius: 0.3rem;
    font-size: 0.75rem;
    letter-spacing: 0.01em;
}

.config-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 500px), 1fr));
    gap: 3rem;
}

.config-section {
    background: rgba(255, 255, 255, 0.014);
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    padding: 1.9rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.config-section h4 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    padding-bottom: 0.9rem;
    margin-bottom: 1.75rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.config-content {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.config-step h5 {
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    margin-bottom: 0.9rem;
    color: var(--primary-color);
}

.uri-schemes {
    display: grid;
    gap: 0.75rem;
}

.uri-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-left: 1px solid var(--primary-line);
    border-radius: 0.5rem;
    padding: 0.85rem 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.uri-item code {
    color: var(--primary-color);
    font-weight: 500;
}

.param-config {
    display: grid;
    gap: 0.75rem;
}

.param-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-left: 1px solid var(--secondary-line);
    border-radius: 0.5rem;
    padding: 0.85rem 1rem;
    font-size: 0.8125rem;
    line-height: 1.65;
    color: var(--text-secondary);
}

.param-item strong {
    color: var(--secondary-color);
    font-weight: 500;
}

.resources-prompts-layer {
    background: linear-gradient(180deg, rgba(227, 194, 144, 0.06), rgba(156, 179, 202, 0.02));
    border: 1px solid var(--primary-line);
    box-shadow: inset 0 1px 0 rgba(227, 194, 144, 0.1);
}

/* Agent Skills Section */
.agent-skills {
    padding: 6rem 0;
    background: radial-gradient(ellipse 65% 40% at 50% 0%, rgba(227, 194, 144, 0.04), transparent 72%);
}

.skills-content {
    max-width: 800px;
    margin: 0 auto;
}

.skills-intro {
    margin-bottom: 2.5rem;
}

.skills-intro p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
}

.skills-mechanism,
.skills-integration,
.skills-usage {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.026), rgba(255, 255, 255, 0.008));
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    padding: 1.6rem 1.9rem;
    margin-bottom: 1.25rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.skills-mechanism h3,
.skills-integration h3,
.skills-usage h3 {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--primary-color);
    margin-bottom: 1.1rem;
}

.skills-mechanism ul,
.skills-integration ul {
    list-style: none;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.85;
}

.skills-mechanism li,
.skills-integration li {
    margin-bottom: 0.65rem;
    padding-left: 1.1rem;
    position: relative;
}

.skills-mechanism li::before,
.skills-integration li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--primary-color);
    opacity: 0.7;
}

.skills-usage p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.8;
}

.skills-content code {
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid var(--border-color);
    padding: 0.12em 0.42em;
    border-radius: 0.3rem;
    font-size: 0.85em;
    color: var(--primary-color);
}

/* Tools Section */
.tools {
    padding: 6rem 0;
}

.tools-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
    gap: 2rem;
}

.tool-category {
    padding: 1.5rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.028), rgba(255, 255, 255, 0.008));
    backdrop-filter: blur(14px);
    border: 1px solid var(--border-color);
    border-radius: 0.875rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.tool-category h4 {
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    padding-bottom: 0.85rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.tool-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6875rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.1rem 0.4rem;
}

.tool-category ul {
    list-style: none;
}

.tool-category li {
    padding: 0.4rem 0;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8125rem;
}

.tool-category li::before {
    content: '▹ ';
    color: rgba(227, 194, 144, 0.55);
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    background: rgba(255, 255, 255, 0.012);
    border-top: 1px solid var(--border-color);
}

.footer::before {
    content: '';
    display: block;
    height: 1px;
    margin: -4rem 0 4rem;
    background: var(--hairline);
    opacity: 0.35;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1.1rem;
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-decoration: none;
    transition: color 0.25s ease;
}

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

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-strong);
    border-radius: 0.5rem;
    transition: all 0.25s ease;
}

.footer-social a:hover {
    background: var(--primary-soft);
    border-color: var(--primary-line);
    transform: translateY(-1px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero > .container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-content {
        max-width: none;
    }

    .hero-visual {
        max-width: 100%;
    }

    .architecture-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

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

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .features-grid,
    .scenarios-grid,
    .examples-grid,
    .rp-grid,
    .config-sections {
        grid-template-columns: 1fr;
    }

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

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 6rem 0 3rem;
    }

    .hero-title {
        font-size: 2rem;
    }
}

/* 尊重系统"减少动态效果"设置：关闭入场动画与背景漂移 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-delay: 0s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}