/* =====================================================
   TMKG 集团首页样式 — 仿照 fkjt07.jz.fkw.com
   ===================================================== */

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: '微软雅黑', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== 页面最大宽 ===== */
.top-bar-inner,
.main-nav-inner,
.trust-inner,
.business-grid, .business-header, .biz-more,
.profile-inner,
.news-inner,
.qualify-inner,
.footer-inner {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 30px;
}

/* ==============================================
   导航栏（Logo + 菜单同排，单行 64px）
   ============================================== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001; /* 确保在 Banner 之上 */
    height: 64px;
    background: transparent;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    border-bottom: none; /* 移除白色线 */
    transition: all 0.3s ease;
}

.main-nav.scrolled {
    background: rgba(10, 16, 30, 0.98);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-bottom-color: rgba(255,255,255,0.08);
    box-shadow: 0 2px 16px rgba(0,0,0,0.15);
}

.main-nav-inner {
    max-width: 1300px;
    margin: 0 auto;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 36px;
}

/* Logo */
.nav-logo-link {
    display: flex;
    align-items: baseline;
    gap: 4px;
    text-decoration: none;
    flex-shrink: 0;
}
.nav-logo-cn {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #fff;
}
.nav-logo-sub {
    font-size: 14px;
    font-weight: 400;
    color: rgba(255,255,255,0.5);
    letter-spacing: 1px;
}

/* 菜单列表 */
.main-nav-list {
    display: flex;
    align-items: center;
    gap: 0;
}

.nav-item {
    position: relative;
}

.nav-item a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0 30px;
    height: 64px;
    color: rgba(255,255,255,0.75);
    transition: color 0.25s;
    text-align: center;
    line-height: 1.2;
}

.nav-item a:hover,
.nav-item.active a {
    color: #fff;
}

/* 移除活动状态的下划线 */
.nav-item.active::after {
    display: none;
}

.nav-cn {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
}

.nav-en {
    font-size: 10px;
    color: rgba(255,255,255,0.35);
    letter-spacing: 0.5px;
    margin-top: 2px;
}

.nav-item.active .nav-en,
.nav-item a:hover .nav-en {
    color: rgba(255,255,255,0.55);
}

.nav-sep {
    width: 1px;
    height: 16px;
    background: rgba(255,255,255,0.12);
}

/* 移动端汉堡 */
.mob-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.mob-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: rgba(255,255,255,0.85);
    border-radius: 1px;
    transition: all 0.25s;
}

/* 移动端菜单 */
.mob-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 16, 30, 0.98);
    z-index: 999;
    flex-direction: column;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.mob-menu.open {
    max-height: 400px;
}
.mob-menu a {
    display: block;
    padding: 16px 30px;
    color: rgba(255,255,255,0.85);
    font-size: 15px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: all 0.25s ease;
    position: relative;
}
.mob-menu a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: #4a9eff;
    transform: scaleY(0);
    transition: transform 0.25s ease;
}
.mob-menu a:hover::before,
.mob-menu a.active::before {
    transform: scaleY(1);
}
.mob-menu a:hover { 
    background: rgba(74,158,255,0.08);
    color: #fff;
    padding-left: 38px;
}

/* ==============================================
   Banner 轮播
   ============================================== */
.banner-section {
    position: relative;
    overflow: hidden;
    padding-top: 0;
    margin-top: 0; /* Banner 顶到最上方 */
    height: 100vh;
    min-height: 500px;
    z-index: 1; /* 在导航栏下方 */
}

.banner-slider {
    position: absolute;
    inset: 0;
    display: flex;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.banner-slide {
    flex: 0 0 100%;
    background-size: cover;
    background-position: center;
    position: relative;
    min-height: 100vh;
    /* 无图时的降级背景 */
    background-color: #0a1628;
}

.banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(5, 15, 40, 0.65) 0%, rgba(10, 25, 60, 0.4) 100%);
    z-index: 1;
}

.banner-content {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.banner-text-wrap {
    text-align: center;
    color: #fff;
}

.banner-en {
    font-size: 20px;
    letter-spacing: 6px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 20px;
    font-weight: 300;
    text-transform: uppercase;
}

.banner-title {
    font-size: clamp(36px, 5vw, 66px);
    font-weight: 700;
    letter-spacing: 6px;
    margin-bottom: 48px;
    line-height: 1.3;
}

.banner-btn {
    display: inline-block;
    padding: 13px 44px;
    border: 2px solid #fff;
    color: #fff;
    font-size: 15px;
    letter-spacing: 3px;
    border-radius: 2px;
    transition: all 0.3s;
}

.banner-btn:hover {
    background: #fff;
    color: #0a1628;
}

/* Banner 指示器 */
.banner-dots {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 2;
}

.banner-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.banner-dot.active {
    background: #fff;
    width: 28px;
    border-radius: 5px;
}

/* Banner 箭头 */
.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.35);
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    z-index: 2;
    transition: all 0.25s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.banner-arrow:hover { background: rgba(255,255,255,0.3); }
.banner-prev { left: 24px; }
.banner-next { right: 24px; }

/* ==============================================
   信任共赢
   ============================================== */
.trust-section {
    background: #0f1724;
    padding: 80px 30px;
    text-align: center;
}

.trust-inner {
    max-width: 1300px;
}

.trust-sub {
    font-size: 16px;
    color: rgba(255,255,255,0.45);
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.trust-title {
    font-size: clamp(28px, 4vw, 52px);
    color: #fff;
    font-weight: 700;
    letter-spacing: 4px;
    margin-bottom: 40px;
}

.trust-btn {
    display: inline-block;
    padding: 12px 44px;
    border: 2px solid rgba(255,255,255,0.6);
    color: rgba(255,255,255,0.85);
    font-size: 15px;
    letter-spacing: 2px;
    border-radius: 2px;
    transition: all 0.3s;
}
.trust-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
    color: #fff;
}

/* ==============================================
   集团业务
   ============================================== */
.business-section {
    padding: 80px 0 60px;
    background: #fff;
}

.business-inner {
    max-width: 1300px;
    margin: 0 auto;
}

.business-label { 
    padding: 0 36px;
}

.biz-title-cn {
    font-size: 32px;
    font-weight: 700;
    color: #1a4692;
    letter-spacing: 2px;
}

.biz-title-en {
    font-size: 18px;
    color: #b9b9b9;
    letter-spacing: 2px;
    margin-top: 6px;
}

.biz-line {
    width: 40px;
    height: 3px;
    background: #1a4692;
    margin: 16px auto 0;
    border-radius: 2px;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}

.biz-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.biz-card-img {
    height: 320px;
    background-size: cover;
    background-position: center;
    transition: transform 0.6s ease;
    background-color: #c8d4e8;
}

.biz-img-1 { background-image: url('../images/biz1.jpg'); background-color: #7a9abf; }
.biz-img-2 { background-image: url('../images/biz2.jpg'); background-color: #8a9faa; }
.biz-img-3 { background-image: url('../images/biz3.jpg'); background-color: #6a85a8; }

.biz-card:hover .biz-card-img {
    transform: scale(1.05);
}

.biz-card-body {
    padding: 24px 28px 28px;
    background: #f8f8f8;
    border-top: 3px solid transparent;
    transition: border-color 0.3s;
}
.biz-card:hover .biz-card-body { border-top-color: #1a4692; }

.biz-cn {
    font-size: 22px;
    font-weight: 700;
    color: #1a4692;
    margin-bottom: 4px;
}
.biz-en {
    font-size: 14px;
    color: #999;
    letter-spacing: 1px;
}
.biz-dash {
    display: block;
    margin-top: 10px;
    font-size: 18px;
    color: #ccc;
}

.biz-more {
    text-align: right;
    margin-top: 24px;
}
.biz-more a {
    font-size: 14px;
    color: #1a4692;
    font-weight: 500;
    transition: color 0.2s;
}
.biz-more a:hover { color: #0e2d6e; }

/* ==============================================
   集团简介
   ============================================== */
.profile-section {
    background: #f2f5fa;
    padding: 80px 0;
}

.profile-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.profile-label { margin-bottom: 28px; }

.profile-title-cn {
    font-size: 32px;
    font-weight: 700;
    color: #1a4692;
    letter-spacing: 2px;
}
.profile-title-en {
    font-size: 18px;
    color: #b9b9b9;
    letter-spacing: 2px;
    margin-top: 4px;
}
.profile-line {
    width: 40px;
    height: 3px;
    background: #1a4692;
    margin-top: 14px;
    border-radius: 2px;
}

.profile-company {
    font-size: 22px;
    font-weight: 700;
    color: #3a4456;
    margin-bottom: 18px;
}

.profile-desc {
    font-size: 14px;
    color: #666;
    line-height: 2;
    margin-bottom: 32px;
}

.profile-btn {
    display: inline-block;
    padding: 11px 36px;
    border: 2px solid #1a4692;
    color: #1a4692;
    font-size: 14px;
    letter-spacing: 2px;
    border-radius: 2px;
    transition: all 0.3s;
}
.profile-btn:hover {
    background: #1a4692;
    color: #fff;
}

.profile-img-wrap {
    width: 100%;
    height: 380px;
    overflow: hidden;
    border-radius: 2px;
}

.profile-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.profile-img-wrap:hover img { transform: scale(1.04); }

.profile-img-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #c8d4e8, #dde6f4);
}

/* ==============================================
   集团新闻
   ============================================== */
.news-section {
    padding: 80px 0;
    background: #fff;
}

.news-inner {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 36px;
}

.news-header-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.news-carousel-wrap {
    position: relative;
    overflow: hidden;
    padding: 20px 0;
}

.news-carousel {
    display: flex;
    gap: 24px;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: grab;
}

.news-carousel:active {
    cursor: grabbing;
}

.news-carousel-card {
    flex: 0 0 calc(33.333% - 16px);
    min-width: 0;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.news-carousel-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-color: #1a4692;
}

.news-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.news-card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #e8f0fe, #d4e4f7);
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-carousel-card:hover .news-card-image img {
    transform: scale(1.08);
}

.news-card-content {
    padding: 20px;
}

.news-card-date {
    font-size: 13px;
    color: #999;
    margin-bottom: 8px;
}

.news-card-title {
    font-size: 16px;
    font-weight: 600;
    color: #1a4692;
    margin-bottom: 10px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s;
}

.news-card-link:hover .news-card-title {
    color: #0e2d6e;
}

.news-card-excerpt {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.9);
    border: 1px solid #e5e7eb;
    color: #1a4692;
    font-size: 18px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.news-carousel-btn:hover {
    background: #1a4692;
    color: #fff;
    border-color: #1a4692;
}

.news-prev {
    left: -20px;
}

.news-next {
    right: -20px;
}

.news-empty-state {
    padding: 60px 20px;
    text-align: center;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border-radius: 12px;
    border: 1px dashed #cbd5e1;
    color: #64748b;
    font-size: 15px;
}

/* 左：媒体聚焦 */
.news-label { margin-bottom: 32px; }

.news-title-cn {
    font-size: 32px;
    font-weight: 700;
    color: #1a4692;
    letter-spacing: 2px;
}
.news-title-en {
    font-size: 18px;
    color: #b9b9b9;
    margin-top: 4px;
}
.news-line {
    width: 40px;
    height: 3px;
    background: #1a4692;
    margin-top: 14px;
    border-radius: 2px;
}

.news-tab-bar { margin-bottom: 16px; }
.news-tab {
    font-size: 17px;
    font-weight: 600;
    color: #1a4692;
    border-bottom: 2px solid #1a4692;
    padding-bottom: 4px;
    cursor: pointer;
}

.news-date-badge {
    font-size: 14px;
    color: #b2b2b2;
    margin-bottom: 16px;
}

.news-big-title {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #333;
    line-height: 1.4;
    margin-bottom: 24px;
    transition: color 0.2s;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-big-title:hover { color: #1a4692; }

.news-detail-link {
    display: inline-block;
    font-size: 14px;
    color: #1a4692;
    font-weight: 500;
    transition: letter-spacing 0.2s;
}
.news-detail-link:hover { letter-spacing: 1px; }

/* 右：热门资讯 */
.news-right-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid #eee;
}

.news-more-link {
    font-size: 13px;
    color: #1a4692;
    transition: color 0.2s;
}
.news-more-link:hover { color: #0e2d6e; }

.news-list { }
.news-list-item {
    border-bottom: 1px dashed #e5e7eb;
}
.news-list-item:last-child { border-bottom: none; }

.news-list-link {
    display: flex;
    gap: 20px;
    padding: 18px 0;
    align-items: flex-start;
    transition: background 0.2s;
}

.news-list-date {
    flex-shrink: 0;
    width: 50px;
    text-align: center;
    background: #f0f4fa;
    padding: 8px 4px;
    border-radius: 2px;
    transition: background 0.2s;
}
.news-list-link:hover .news-list-date { background: #1a4692; }

.nld-day {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: #1a4692;
    line-height: 1;
    transition: color 0.2s;
}
.news-list-link:hover .nld-day { color: #fff; }

.nld-ym {
    display: block;
    font-size: 11px;
    color: #999;
    margin-top: 4px;
    transition: color 0.2s;
}
.news-list-link:hover .nld-ym { color: rgba(255,255,255,0.75); }

.nlc-title {
    font-size: 15px;
    font-weight: 500;
    color: #333;
    margin-bottom: 6px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s;
}
.news-list-link:hover .nlc-title { color: #1a4692; }

.nlc-excerpt {
    font-size: 13px;
    color: #999;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-empty {
    padding: 60px 20px;
    text-align: center;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border-radius: 12px;
    border: 1px dashed #cbd5e1;
}
.news-empty::before {
    content: '';
    display: block;
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    border-radius: 50%;
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M19 3H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm0 16H5V5h14v14z'/%3E%3Cpath d='M7 10h2v7H7zm4-3h2v10h-2zm4 6h2v4h-2z'/%3E%3C/svg%3E") no-repeat center;
    mask-size: contain;
    background-color: #94a3b8;
}
.news-empty {
    color: #64748b;
    font-size: 15px;
}

/* ==============================================
   企业资质 + 合作伙伴
   ============================================== */
.qualify-section {
    background: #f2f5fa;
    padding: 80px 0;
}

.qualify-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.qualify-title-cn {
    font-size: 28px;
    font-weight: 700;
    color: #1a4692;
    letter-spacing: 2px;
}
.qualify-title-en {
    font-size: 16px;
    color: #b9b9b9;
    margin-top: 4px;
}
.qualify-line {
    width: 36px;
    height: 3px;
    background: #1a4692;
    margin: 12px 0 20px;
    border-radius: 2px;
}
.qualify-desc {
    font-size: 14px;
    color: #666;
    line-height: 2;
    margin-bottom: 28px;
}
.qualify-btn {
    font-size: 14px;
    color: #1a4692;
    font-weight: 500;
    transition: color 0.2s;
}
.qualify-btn:hover { color: #0e2d6e; }

.partners-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 8px;
}
.partner-item {
    height: 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.partner-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,70,146,0.08) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.partner-item:hover::before {
    opacity: 1;
}
.partner-item:hover {
    box-shadow: 0 8px 24px rgba(26,70,146,0.12);
    border-color: rgba(26,70,146,0.2);
    transform: translateY(-2px);
}
.partner-item::after {
    content: 'PARTNER';
    font-size: 12px;
    font-weight: 600;
    color: rgba(26,70,146,0.15);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ==============================================
   页脚
   ============================================== */
.site-footer {
    background: #0f1724;
    color: rgba(255,255,255,0.65);
    padding: 56px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    padding-bottom: 48px;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul li, .footer-col ul a {
    font-size: 14px;
    color: rgba(255,255,255,0.55);
    transition: color 0.2s;
    line-height: 1.6;
}

.footer-col ul a:hover { color: #fff; }

.footer-qr .qr-placeholder {
    width: 100px;
    height: 100px;
    background: #fff;
    border-radius: 8px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.footer-qr .qr-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.footer-qr p {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.35);
}

/* ==============================================
   返回顶部
   ============================================== */
.back-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: #1a4692;
    color: #fff;
    border: none;
    border-radius: 2px;
    font-size: 20px;
    cursor: pointer;
    z-index: 900;
    display: none;
    align-items: center;
    justify-content: center;
    transition: background 0.25s, transform 0.25s;
}
.back-top:hover {
    background: #0e2d6e;
    transform: translateY(-3px);
}
.back-top.visible { display: flex; }

/* ==============================================
   响应式
   ============================================== */
@media (max-width: 1024px) {
    .profile-inner,
    .news-inner,
    .qualify-inner {
        gap: 48px;
    }
}

@media (max-width: 768px) {
    .banner-section { margin-top: 64px; height: calc(100vh - 64px); }
    .banner-slide { min-height: calc(100vh - 64px); }

    .main-nav-inner { justify-content: space-between; }
    .main-nav-list { display: none; }
    .mob-toggle { display: flex; }

    .business-grid { grid-template-columns: 1fr; }
    .profile-inner { grid-template-columns: 1fr; gap: 40px; }
    .news-inner { grid-template-columns: 1fr; gap: 48px; }
    .qualify-inner { grid-template-columns: 1fr; gap: 48px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 480px) {
    .banner-title { letter-spacing: 2px; }
    .trust-title { letter-spacing: 2px; }
    .footer-grid { grid-template-columns: 1fr; }
    .main-nav-inner,
    .business-header,
    .business-grid,
    .biz-more,
    .footer-inner { padding: 0 16px; }
}