/* assets/css/components.css */

/* Typography */
.section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    display: inline-block;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--spacing-xs);
}

.section-title {
    font-size: 36px;
    margin-bottom: var(--spacing-sm);
}

.section-desc {
    font-size: 16px;
    color: var(--text-regular);
    max-width: 800px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
    height: 44px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 0;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    border: none;
}

.btn-primary:hover {
    background: var(--primary-gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 136, 204, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--text-main);
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 0;
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom right, rgba(0,0,0,0.02) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--border-light);
    background: var(--bg-card-hover);
    box-shadow: 0 12px 24px rgba(0,0,0,0.06);
}

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

/* Badges / Tags */
.badge, .tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 0;
    font-size: 12px;
    background: rgba(0, 136, 204, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(0, 136, 204, 0.2);
    margin-bottom: var(--spacing-xs);
}

/* Grids */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

/* Utility Animations */
.fade-in {
    opacity: 0;
    transform: translateY(46px) scale(0.9);
    filter: blur(3px);
    transition: opacity 0.58s ease, transform 0.74s cubic-bezier(0.16, 1, 0.3, 1), filter 0.58s ease;
    transition-delay: var(--fade-delay, 0ms);
}

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

/* Animated Background Elements (OpenAkita style) */
.bg-animated-section {
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(rgba(0, 136, 204, 0.15) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 136, 204, 0.15) 1px, transparent 1px);
    background-size: 100px 100px;
    opacity: 0.5;
    animation: heroGridPulse 12s ease-in-out infinite;
    z-index: 0;
}

.hero-orbit {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    border: 2px dashed rgba(0, 136, 204, 0.4);
    filter: drop-shadow(0 0 32px rgba(0, 136, 204, 0.3));
    z-index: 0;
}

.hero-orbit-a {
    width: min(960px, 78vw);
    height: min(960px, 78vw);
    right: -260px;
    top: -300px;
    animation: orbitLayerSpin 25s linear infinite;
}

.hero-orbit-b {
    width: min(1180px, 90vw);
    height: min(1180px, 90vw);
    right: -430px;
    top: -470px;
    border-color: rgba(139, 186, 25, 0.4); /* 结合尚易的主题色 #8BBA19 */
    animation: orbitLayerSpinReverse 35s linear infinite;
}

@keyframes orbitLayerSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes orbitLayerSpinReverse {
    from { transform: rotate(360deg); }
    to { transform: rotate(0deg); }
}

@keyframes heroGridPulse {
    0%, 100% {
        opacity: 0.3;
        transform: translateX(0) translateY(0);
    }
    50% {
        opacity: 0.6;
        transform: translateX(-15px) translateY(-15px);
    }
}

/* Page Hero (Global) */
.page-hero {
    padding: 160px 0 80px;
    background: radial-gradient(circle at 50% 100%, rgba(0, 136, 204, 0.1) 0%, transparent 60%);
    text-align: center;
    border-bottom: 1px solid var(--border-light);
}

.page-subtitle {
    display: inline-block;
    color: var(--accent-cyan);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.page-title {
    font-size: 48px;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(to right, var(--text-main), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-desc {
    font-size: 18px;
    color: var(--text-regular);
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
}