/* Methodology / Timeline Section */
.methodology-section {
    padding: 100px 0 80px;
    background: var(--color-white);
    overflow: hidden;
}

.timeline-scroll {
    overflow: hidden;
    padding-bottom: 20px;
    position: relative;
}

.timeline-track {
    display: flex;
    gap: 0;
    animation: scrollTimeline 30s linear infinite;
    width: fit-content;
}

@keyframes scrollTimeline {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.timeline-scroll:hover .timeline-track {
    animation-play-state: paused;
}

.timeline-track {
    display: flex;
    gap: 0;
    min-width: max-content;
    position: relative;
    padding-top: 40px;
}

.timeline-track::before {
    content: '';
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    height: 1px;
    background: #e5e5e5;
}

.timeline-item {
    width: 200px;
    text-align: center;
    position: relative;
    padding: 0 16px;
}

.timeline-year {
    font-size: 28px;
    font-weight: 300;
    color: var(--color-gold);
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}

.timeline-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-white);
    border: 2px solid var(--color-gold);
    margin: 0 auto 16px;
    position: relative;
    z-index: 1;
    transition: background 0.3s ease, transform 0.3s ease;
}

.timeline-item:hover .timeline-dot {
    background: var(--color-gold);
    transform: scale(1.3);
}

.timeline-content {
    font-size: 13px;
    line-height: 1.7;
    color: var(--color-gray);
    background: var(--color-white);
    padding: 12px 8px;
    border: 1px solid #e5e5e5;
    border-radius: 4px;
    transition: border-color 0.3s ease, color 0.3s ease;
}

.timeline-item:hover .timeline-content {
    border-color: var(--color-gold);
    color: var(--color-black);
}

/* Competency Section */
.competency-section {
    padding: 100px 0;
    background: #0a0a0a;
    color: var(--color-white);
}

.competency-inner {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.competency-tag {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 0.3em;
    color: var(--color-gold);
    text-transform: uppercase;
    margin-bottom: 24px;
    padding: 6px 20px;
    border: 1px solid rgba(197, 164, 103, 0.3);
}

.competency-headline {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 200;
    color: var(--color-white);
    letter-spacing: 0.15em;
    margin-bottom: 12px;
}

.competency-sub {
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 40px;
    letter-spacing: 0.2em;
}

.competency-divider {
    width: 60px;
    height: 1px;
    background: var(--color-gold);
    margin: 0 auto 40px;
}

.competency-desc {
    font-size: 15px;
    line-height: 2;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    font-weight: 300;
}

.competency-desc strong {
    color: var(--color-gold);
    font-weight: 400;
}

/* Process Overview Section */
.process-overview-section {
    padding: 100px 0;
    background: #f8f8f8;
}

.process-phases {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.phase-card {
    background: var(--color-white);
    padding: 48px 36px;
    position: relative;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.phase-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.08);
}

.phase-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(to right, var(--color-gold), #000);
}

.phase-number {
    font-size: 64px;
    font-weight: 200;
    color: var(--color-gold);
    opacity: 0.25;
    line-height: 1;
    margin-bottom: 16px;
    transition: opacity 0.3s ease;
}

.phase-card:hover .phase-number {
    opacity: 1;
}

.phase-name {
    font-size: 20px;
    font-weight: 500;
    color: var(--color-black);
    margin-bottom: 24px;
    letter-spacing: 0.05em;
    padding-bottom: 16px;
    border-bottom: 1px solid #e5e5e5;
}

.phase-list {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
}

.phase-list li {
    font-size: 13px;
    color: var(--color-gray);
    padding: 8px 0;
    border-bottom: 1px solid #f5f5f5;
    line-height: 1.5;
}

.phase-output {
    background: #fafafa;
    padding: 16px;
    border-left: 3px solid var(--color-gold);
}

.phase-output span {
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--color-gold);
    text-transform: uppercase;
    display: block;
    margin-bottom: 8px;
}

.phase-output p {
    font-size: 13px;
    color: var(--color-black);
    line-height: 1.7;
    margin: 0;
}

/* Responsive */
@media (max-width: 1024px) {
    .process-phases {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .phase-card {
        padding: 36px 28px;
    }
}

@media (max-width: 768px) {
    .methodology-section,
    .competency-section,
    .process-overview-section {
        padding: 80px 0;
    }

    .competency-headline {
        font-size: 36px;
    }
}

/* Service Page Styles */

/* Hero Section — 完全复用 subpage.css 的 hero-service 样式 */

/* Services Section */
.services-section {
    padding: 120px 0;
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 120px;
}

.service-card {
    background: var(--color-white);
    border: 1px solid #e5e5e5;
    padding: 48px 40px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--color-gold);
    transition: height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    border-color: var(--color-gold);
}

.service-card:hover::before {
    height: 100%;
}

.service-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 24px;
    color: var(--color-gold);
    transition: transform 0.4s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-title {
    font-size: 24px;
    font-weight: 500;
    color: var(--color-black);
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}

.service-desc {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-gray);
    margin-bottom: 24px;
}

.service-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-list li {
    font-size: 13px;
    color: var(--color-gray);
    padding: 8px 0;
    border-top: 1px solid #f0f0f0;
    position: relative;
    padding-left: 16px;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 4px;
    height: 4px;
    background: var(--color-gold);
    transform: translateY(-50%);
}

/* Service Process */
.service-process {
    padding-top: 80px;
    border-top: 1px solid #e5e5e5;
}

.section-title {
    font-size: 36px;
    font-weight: 300;
    text-align: center;
    margin-bottom: 60px;
    color: var(--color-black);
    letter-spacing: 0.1em;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 40px;
}

.process-step {
    text-align: center;
    padding: 40px 24px;
    position: relative;
}

.process-step::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -20px;
    width: 40px;
    height: 1px;
    background: #e5e5e5;
}

.process-step:last-child::after {
    display: none;
}

.step-number {
    font-size: 64px;
    font-weight: 200;
    color: var(--color-gold);
    line-height: 1;
    margin-bottom: 20px;
    opacity: 0.3;
    transition: opacity 0.3s ease;
}

.process-step:hover .step-number {
    opacity: 1;
}

.process-step h4 {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-black);
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.process-step p {
    font-size: 14px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .service-card {
        padding: 32px 24px;
    }

    .process-step::after {
        display: none;
    }

    .services-section {
        padding: 80px 0;
    }
}

/* 核心竞争力图片 */
.core-competency {
    margin-top: 80px;
    text-align: center;
}

.competency-img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

/* 工作计划明细图片 */
.work-plan-section {
    padding: 80px 0;
    background: var(--color-white);
}

.work-plan-img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}