/* ===== Hero 区域 ===== */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
    padding-top: 64px;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: 999px;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    margin-bottom: 32px;
    font-size: 14px;
    color: rgba(34, 211, 238, 0.9);
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--cyan);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: clamp(48px, 8vw, 80px);
    font-weight: 900;
    line-height: 0.95;
    margin-bottom: 24px;
}

.title-line { display: block; }

.hero-subtitle {
    font-size: clamp(20px, 3vw, 28px);
    color: var(--text-secondary);
    font-weight: 300;
    margin-bottom: 12px;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: 48px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 64px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.stat { text-align: left; }

.stat-num {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 4px;
}

.stat-num .stat-suffix {
    font-size: 20px;
    color: var(--text-secondary);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

/* 右侧代码区域 */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(6, 182, 212, 0.1);
}

.orbit-1 {
    inset: 15%;
    animation: spin 40s linear infinite;
}

.orbit-2 {
    inset: 25%;
    animation: spin 30s linear infinite reverse;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.orbit-dot {
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.5);
}

.orbit-dot-lg {
    width: 16px;
    height: 16px;
    background: var(--blue);
    box-shadow: 0 0 24px rgba(59, 130, 246, 0.5);
}

/* 涟漪动画区域 */
.ripple-container {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    border: 2px solid rgba(6, 182, 212, 0.3);
    animation: ripple-expand 3s ease-out infinite;
}

.ripple-1 { animation-delay: 0s; }
.ripple-2 { animation-delay: 0.6s; }
.ripple-3 { animation-delay: 1.2s; }
.ripple-4 { animation-delay: 1.8s; }
.ripple-5 { animation-delay: 2.4s; }

@keyframes ripple-expand {
    0% {
        width: 40px;
        height: 40px;
        opacity: 1;
        border-width: 3px;
        border-color: rgba(6, 182, 212, 0.6);
    }
    50% {
        opacity: 0.5;
        border-width: 2px;
        border-color: rgba(6, 182, 212, 0.3);
    }
    100% {
        width: 320px;
        height: 320px;
        opacity: 0;
        border-width: 1px;
        border-color: rgba(6, 182, 212, 0);
    }
}

/* ===== 3D 交互立方体 ===== */
.cube-scene {
    position: relative;
    width: 200px;
    height: 200px;
    perspective: 800px;
    z-index: 1;
}

.cube {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    cursor: pointer;
}

.cube-face {
    position: absolute;
    width: 200px;
    height: 200px;
    background: #ffffff;
    border: 2px solid rgba(6, 182, 212, 0.6);
    box-shadow:
        inset 0 0 30px rgba(0, 0, 0, 0.03),
        0 0 15px rgba(6, 182, 212, 0.3),
        0 0 30px rgba(6, 182, 212, 0.15);
    user-select: none;
}

/* 立方体六个面 */
.cube-face-front  { transform: rotateY(0deg)   translateZ(100px); }
.cube-face-back   { transform: rotateY(180deg) translateZ(100px); }
.cube-face-right  { transform: rotateY(90deg)  translateZ(100px); }
.cube-face-left   { transform: rotateY(-90deg) translateZ(100px); }
.cube-face-top    { transform: rotateX(90deg)  translateZ(100px); }
.cube-face-bottom { transform: rotateX(-90deg) translateZ(100px); }

/* 特性对话框 */
.cube-tooltip {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: rgba(3, 7, 18, 0.95);
    border: 1px solid rgba(6, 182, 212, 0.4);
    border-radius: 12px;
    padding: 16px 24px;
    min-width: 220px;
    max-width: 280px;
    text-align: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 10;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 20px rgba(6, 182, 212, 0.15);
}

.cube-tooltip.is-visible {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.cube-tooltip-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.cube-tooltip-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.cube-tooltip-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* 小三角箭头 */
.cube-tooltip::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid rgba(6, 182, 212, 0.4);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 13px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

.scroll-mouse {
    width: 24px;
    height: 36px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    position: relative;
}

.scroll-mouse::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--cyan);
    border-radius: 2px;
    animation: scroll-dot 2s ease-in-out infinite;
}

@keyframes scroll-dot {
    0%, 100% { opacity: 1; top: 6px; }
    50% { opacity: 0.3; top: 16px; }
}

/* 响应式 */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    .hero-desc, .hero-actions, .hero-stats {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-stats { max-width: 400px; }
    .stat { text-align: center; }
    .ripple-container {
        margin: 0 auto;
        width: 280px;
        height: 280px;
    }
    .cube-scene {
        width: 160px;
        height: 160px;
        margin: 0 auto;
    }
    .cube-face {
        width: 160px;
        height: 160px;
    }
    .cube-face-front  { transform: rotateY(0deg)   translateZ(80px); }
    .cube-face-back   { transform: rotateY(180deg) translateZ(80px); }
    .cube-face-right  { transform: rotateY(90deg)  translateZ(80px); }
    .cube-face-left   { transform: rotateY(-90deg) translateZ(80px); }
    .cube-face-top    { transform: rotateX(90deg)  translateZ(80px); }
    .cube-face-bottom { transform: rotateX(-90deg) translateZ(80px); }
}

@media (max-width: 640px) {
    .hero-container {
        padding: 40px 16px;
    }
    .hero-stats { grid-template-columns: 1fr; gap: 16px; }
    .hero-actions {
        justify-content: center;
    }
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    .ripple-container {
        width: 240px;
        height: 240px;
    }
    .cube-scene {
        width: 140px;
        height: 140px;
        margin: 0 auto;
    }
    .cube-face {
        width: 140px;
        height: 140px;
    }
    .cube-face-front  { transform: rotateY(0deg)   translateZ(70px); }
    .cube-face-back   { transform: rotateY(180deg) translateZ(70px); }
    .cube-face-right  { transform: rotateY(90deg)  translateZ(70px); }
    .cube-face-left   { transform: rotateY(-90deg) translateZ(70px); }
    .cube-face-top    { transform: rotateX(90deg)  translateZ(70px); }
    .cube-face-bottom { transform: rotateX(-90deg) translateZ(70px); }
    
    .hero-title {
        font-size: 40px;
    }
    .hero-subtitle {
        font-size: 18px;
    }
    .hero-desc {
        font-size: 14px;
        padding: 0 8px;
    }
    .badge {
        font-size: 12px;
        padding: 6px 14px;
    }
}