/* ==========================================================================
   MONOLITH ONE // 虚无工学 · 极简奢华硬件展示页样式表
   ========================================================================== */

:root {
    --bg-black: #050508;
    --card-bg: rgba(20, 22, 30, 0.45);
    --text-primary: #f5f5f7;
    --text-secondary: #86868b;
    --accent-silver: #d1d5db;
    --accent-gold: #e5c07b;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(255, 255, 255, 0.22);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-black);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    overflow-x: hidden;
    line-height: 1.5;
}

/* 顶部悬浮高定毛玻璃导航 */
.nav-dock {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: min(92%, 840px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: rgba(18, 18, 24, 0.65);
    border: 1px solid var(--border-subtle);
    border-radius: 100px;
    backdrop-filter: blur(24px) saturate(180%);
    z-index: 1000;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.brand {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.brand span {
    font-weight: 300;
    color: var(--text-secondary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-audio {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-audio.active {
    border-color: #fff;
    color: #fff;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.25);
}

.btn-nav-order {
    background: #ffffff;
    color: #000000;
    border: none;
    padding: 7px 18px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
}

.btn-nav-order:hover {
    background: #e2e2e5;
    transform: scale(1.03);
}

/* 主内容容器 */
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 120px 24px 80px;
}

/* 巨幅 Hero 舞台 */
.hero-stage {
    text-align: center;
    padding: 40px 0 20px;
}

.eyebrow {
    font-size: 0.85rem;
    letter-spacing: 4px;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 16px;
    font-weight: 500;
}

.hero-title {
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 24px;
    background: linear-gradient(180deg, #ffffff 40%, rgba(255, 255, 255, 0.45) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-slogan {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    font-weight: 300;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 30px;
}

/* 3D 展台区域 */
.monolith-view {
    position: relative;
    width: 100%;
    height: 520px;
    margin: 20px auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

#monolith-canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
}

#monolith-canvas:active {
    cursor: grabbing;
}

.view-hint {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    opacity: 0.7;
    pointer-events: none;
}

/* 高定材质定制工坊 (Bespoke Material Switcher) */
.customizer-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-bottom: 100px;
}

.customizer-title {
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.material-swatches {
    display: flex;
    gap: 20px;
    background: rgba(255, 255, 255, 0.04);
    padding: 10px 24px;
    border-radius: 100px;
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(16px);
}

.swatch-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 6px 14px;
    border-radius: 100px;
    transition: all 0.25s ease;
}

.swatch-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.dot-obsidian { background: #0a0c10; box-shadow: inset 0 0 4px #00f0ff; }
.dot-titanium { background: linear-gradient(135deg, #a09788, #d8d0c5); }
.dot-alabaster { background: #f0f2f8; }

.swatch-btn.active {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

/* Jony Ive 风格设计独白区 */
.monograph-quote {
    text-align: center;
    max-width: 820px;
    margin: 80px auto 140px;
    padding: 0 20px;
}

.quote-body {
    font-size: clamp(1.4rem, 3vw, 2.2rem);
    font-weight: 300;
    line-height: 1.45;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.quote-author {
    font-size: 0.95rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

/* 虚无硬件参数矩阵 */
.specs-section {
    margin-bottom: 120px;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.spec-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 36px 30px;
    backdrop-filter: blur(20px);
    transition: transform 0.3s, border-color 0.3s;
}

.spec-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
}

.spec-number {
    font-size: 3.2rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    color: #ffffff;
}

.spec-title {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.spec-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 订购预定区 */
.order-section {
    text-align: center;
    background: radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.05), transparent 70%), var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 32px;
    padding: 70px 40px;
    margin-bottom: 100px;
}

.order-price {
    font-size: 3rem;
    font-weight: 600;
    margin: 18px 0 10px;
}

.order-accessories {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.btn-primary-reserve {
    background: #ffffff;
    color: #000000;
    border: none;
    padding: 16px 48px;
    border-radius: 100px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary-reserve:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.35);
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* 订购虚构弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-card {
    background: #11131a;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    padding: 40px;
    max-width: 480px;
    width: 100%;
    text-align: center;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.8);
}

.modal-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.modal-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 24px;
}

.hidden {
    display: none !important;
}