/* ==========================================================
   知光互动 · 子页面样式
   ========================================================== */

/* ===== 子页 Hero ===== */
.page-hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--nav-height) + var(--space-9)) var(--space-5) var(--space-8);
    overflow: hidden;
    text-align: center;
}

.page-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(236, 72, 153, 0.18), transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(168, 85, 247, 0.22), transparent 50%);
    z-index: 0;
    animation: nebula-drift 20s infinite alternate ease-in-out;
}

.page-hero-title {
    position: relative;
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: var(--space-4);
    animation: fade-in-up 0.9s var(--ease-out) 0.1s both;
}

.page-hero-sub {
    position: relative;
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 auto;
    animation: fade-in-up 1s var(--ease-out) 0.2s both;
}

/* ===== 服务详情区 ===== */
.service-detail-section {
    padding: var(--space-9) 0;
}

.service-detail {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-8);
    align-items: center;
    padding: var(--space-8) 0;
    border-bottom: 1px solid var(--border-subtle);
}

.service-detail:last-child {
    border-bottom: none;
}

.service-detail.reverse {
    direction: rtl;
}

.service-detail.reverse > * {
    direction: ltr;
}

.service-detail-content p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: var(--space-4);
}

.check-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: var(--space-4);
}

.check-list li {
    position: relative;
    padding-left: 28px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--grad-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(236, 72, 153, 0.3);
}

.service-detail-visual {
    display: flex;
    justify-content: center;
}

.visual-card {
    width: 100%;
    max-width: 360px;
    aspect-ratio: 1;
    background:
        radial-gradient(circle at 50% 30%, rgba(236, 72, 153, 0.25), transparent 60%),
        linear-gradient(160deg, rgba(168, 85, 247, 0.12), rgba(14, 4, 32, 0.6));
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-7);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-cosmic);
    transition: transform var(--duration-slow) var(--ease-elastic);
}

.visual-card:hover {
    transform: scale(1.03) rotate(-2deg);
}

.visual-card.alt {
    background:
        radial-gradient(circle at 50% 30%, rgba(168, 85, 247, 0.3), transparent 60%),
        linear-gradient(160deg, rgba(236, 72, 153, 0.1), rgba(14, 4, 32, 0.6));
}

.visual-icon {
    font-size: 5rem;
    margin-bottom: var(--space-6);
    filter: drop-shadow(0 0 20px rgba(236, 72, 153, 0.6));
    animation: float 3s infinite ease-in-out;
}

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

.visual-stats {
    display: flex;
    gap: var(--space-6);
    width: 100%;
}

.visual-stat {
    flex: 1;
    text-align: center;
    padding: var(--space-4);
    background: rgba(7, 3, 15, 0.4);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
}

.visual-stat strong {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--grad-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.visual-stat span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== 行业网格 ===== */
.industries-section {
    padding: var(--space-9) 0;
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-4);
}

.industry-item {
    padding: var(--space-5) var(--space-4);
    background: rgba(168, 85, 247, 0.05);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    text-align: center;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--duration-base) var(--ease-out);
    cursor: default;
}

.industry-item span {
    display: block;
    font-size: 2rem;
    margin-bottom: 8px;
}

.industry-item:hover {
    transform: translateY(-4px);
    background: rgba(236, 72, 153, 0.1);
    border-color: var(--pink-500);
    color: var(--text-primary);
}

/* ===== 关于页面 ===== */
.about-intro {
    padding: var(--space-9) 0;
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
}

.about-intro-text h2 {
    margin-bottom: var(--space-5);
}

.about-intro-text p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.85;
    margin-bottom: var(--space-4);
}

.about-intro-visual {
    position: relative;
    aspect-ratio: 1;
    background: var(--grad-cosmic);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: var(--shadow-cosmic);
}

.about-intro-visual img {
    width: 75%;
    filter: drop-shadow(0 0 30px rgba(236, 72, 153, 0.6));
    animation: float 4s infinite ease-in-out;
}

.about-intro-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.15), transparent 60%);
    animation: nebula-drift 12s infinite alternate ease-in-out;
}

/* 时间线 */
.timeline {
    position: relative;
    padding: var(--space-7) 0;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--grad-primary);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: var(--space-5);
    margin-bottom: var(--space-6);
}

.timeline-item:nth-child(odd) {
    margin-left: 0;
    text-align: right;
    padding-right: var(--space-7);
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-left: var(--space-7);
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: var(--space-7);
    width: 16px;
    height: 16px;
    background: var(--grad-primary);
    border-radius: 50%;
    box-shadow: 0 0 16px rgba(236, 72, 153, 0.6);
}

.timeline-item:nth-child(odd)::before {
    right: -8px;
}

.timeline-item:nth-child(even)::before {
    left: -8px;
}

.timeline-year {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(236, 72, 153, 0.15);
    border: 1px solid var(--pink-500);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--pink-300);
    margin-bottom: var(--space-3);
}

.timeline-item h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.timeline-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ===== 联系页面 ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-8);
    align-items: start;
    padding: var(--space-9) 0;
}

.contact-info-card {
    padding: var(--space-7);
    background: linear-gradient(160deg, rgba(168, 85, 247, 0.08), rgba(14, 4, 32, 0.4));
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-2xl);
    position: sticky;
    top: calc(var(--nav-height) + 20px);
}

.contact-info-card h3 {
    font-size: 1.6rem;
    margin-bottom: var(--space-4);
    background: var(--grad-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-info-card > p {
    color: var(--text-muted);
    margin-bottom: var(--space-6);
    line-height: 1.7;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--border-subtle);
}

.contact-item:last-of-type {
    border-bottom: none;
}

.contact-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(236, 72, 153, 0.12);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    font-size: 1.2rem;
    color: var(--pink-400);
}

.contact-text strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 4px;
    font-size: 1rem;
}

.contact-text span,
.contact-text a {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-text a:hover {
    color: var(--pink-400);
}

.contact-form-card {
    padding: var(--space-7);
    background: var(--cosmic-bg-2);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-2xl);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
    background: rgba(168, 85, 247, 0.05);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    transition: all var(--duration-base) var(--ease-out);
}

.form-control:focus {
    outline: none;
    border-color: var(--pink-500);
    background: rgba(236, 72, 153, 0.05);
    box-shadow: 0 0 0 4px rgba(236, 72, 153, 0.1);
}

.form-control::placeholder {
    color: var(--text-dim);
}

textarea.form-control {
    min-height: 130px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.map-container {
    margin-top: var(--space-7);
    height: 380px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-soft);
    background: var(--cosmic-bg-2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
    filter: invert(0.9) hue-rotate(180deg) saturate(0.6);
}

.map-placeholder {
    text-align: center;
    color: var(--text-muted);
    padding: var(--space-7);
}

.map-placeholder .map-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    display: block;
}

/* FAQ */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--space-3);
    background: rgba(168, 85, 247, 0.04);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--duration-base) var(--ease-out);
}

.faq-item:hover,
.faq-item.open {
    border-color: var(--border-strong);
}

.faq-question {
    width: 100%;
    padding: var(--space-5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: color var(--duration-base) var(--ease-out);
}

.faq-question:hover {
    color: var(--pink-400);
}

.faq-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(236, 72, 153, 0.12);
    border-radius: 50%;
    color: var(--pink-400);
    font-size: 0.9rem;
    transition: transform var(--duration-base) var(--ease-out);
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: var(--pink-500);
    color: #fff;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-base) var(--ease-out);
}

.faq-item.open .faq-answer {
    max-height: 500px;
}

.faq-answer-inner {
    padding: 0 var(--space-5) var(--space-5);
    color: var(--text-muted);
    line-height: 1.8;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .service-detail,
    .about-intro-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .service-detail.reverse {
        direction: ltr;
    }

    .contact-info-card {
        position: static;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 50px;
        text-align: left;
    }

    .timeline-item:nth-child(odd) {
        padding-right: 0;
    }

    .timeline-item:nth-child(even) {
        margin-left: 0;
    }

    .timeline-item::before {
        left: 12px;
    }
}

@media (max-width: 768px) {
    .check-list {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .visual-card {
        max-width: 280px;
    }

    .visual-icon {
        font-size: 3.5rem;
    }
}