/* ============================================
   services.css - 服务内页公用样式
   优化：服务导航加图标、自适应换行、无滚动条
   ============================================ */

/* ---------- 服务导航：四个服务切换区 ---------- */
.service-nav {
    background: #fff;
    border-bottom: 1px solid #eee;
    position: sticky;
    top: var(--header-height);
    z-index: 99;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.service-nav .container {
    display: flex;
    flex-wrap: wrap;          /* 自动换行，告别滚动条 */
    justify-content: center;  /* 居中更整齐 */
    gap: 8px;
    padding: 8px 0;
}
.service-nav a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    border-bottom: 3px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
    border-radius: 12px;       /* 轻微圆角，更像标签卡片 */
}
.service-nav a:hover {
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.03);
}
.service-nav a.active {
    color: var(--color-primary);
    font-weight: 700;
    border-bottom-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.05);
}
/* 图标样式 */
.service-nav a .svc-icon {
    font-size: 1.2rem;
    line-height: 1;
    flex-shrink: 0;
}

/* 移动端只需调整间距和字体，无滚动条 */
@media (max-width: 768px) {
    .service-nav .container {
        gap: 6px;
        padding: 6px 8px;
    }
    .service-nav a {
        padding: 10px 14px;
        font-size: 0.85rem;
        border-radius: 10px;
    }
    .service-nav a .svc-icon {
        font-size: 1rem;
    }
}
/* 特别窄时进一步压缩 */
@media (max-width: 400px) {
    .service-nav a {
        padding: 8px 10px;
        font-size: 0.8rem;
        gap: 4px;
    }
    .service-nav a .svc-icon {
        font-size: 0.9rem;
    }
}

/* ---------- 内页 Hero 小横幅（防止被粘性导航遮挡）---------- */
.page-hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #fff;
    padding: 90px 0 50px;
    text-align: center;
    scroll-margin-top: calc(var(--header-height) + 70px);
}
@media (max-width: 768px) {
    .page-hero {
        padding-top: 90px;
    }
}
.page-hero .section-tag {
    display: inline-block;
    background: rgba(254,12,34,0.15);
    color: #fe0c22;
    padding: 4px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.page-hero h1 {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}
.page-hero p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.8);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ---------- 通用内容区块（不变）---------- */
.service-section {
    padding: 70px 0;
}
.service-section.alt {
    background: #f9f9f9;
}
.service-section .section-header {
    text-align: center;
    margin-bottom: 50px;
}
.service-section .section-header h2 {
    font-size: 2rem;
    color: #222;
    margin-bottom: 14px;
}
.service-section .section-header p {
    color: #666;
    max-width: 700px;
    margin: 0 auto;
    font-size: 1rem;
}

/* 图文布局 */
.service-feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    margin-bottom: 40px;
}
.service-feature.reverse {
    direction: rtl;
}
.service-feature.reverse > * {
    direction: ltr;
}
.service-feature .text h3 {
    font-size: 1.5rem;
    color: #222;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.service-feature .text h3 .num {
    color: var(--color-primary);
    font-weight: 700;
}
.service-feature .text p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 12px;
}
.service-feature .text ul {
    list-style: none;
    padding: 0;
}
.service-feature .text ul li {
    padding: 6px 0 6px 24px;
    position: relative;
    color: var(--color-text-light);
}
.service-feature .text ul li::before {
    content: '✓';
    color: var(--color-primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}
.service-feature .img {
    background: #e8ecf1;
    border-radius: 12px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #aaa;
    font-size: 0.9rem;
}

/* 工艺流程步骤 */
.process-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.process-item {
    background: #fff;
    border-radius: 12px;
    padding: 30px 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
    text-align: center;
    transition: var(--transition);
}
.process-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}
.process-item .step-icon {
    width: 60px;
    height: 60px;
    background: rgba(254,12,34,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 18px;
    color: var(--color-primary);
}
.process-item h4 {
    font-size: 1.05rem;
    color: #222;
    margin-bottom: 10px;
}
.process-item p {
    font-size: 0.85rem;
    color: #666;
    line-height: 1.6;
}

/* 响应式补充 */
@media (max-width: 768px) {
    .page-hero h1 { font-size: 1.8rem; }
    .service-feature { grid-template-columns: 1fr; gap: 30px; }
    .service-feature.reverse { direction: ltr; }
    .service-feature .img { height: 220px; }
}