/* 基础重置与基础样式
   ==========================================
 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body,
.body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f9fafb;
    color: #1f2937;
    line-height: 1.6;
    opacity: 1;
    transition: opacity 0.15s ease-in-out;
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
}

/* 容器与间距系统
   ==========================================
 */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-sm { padding: 0 1.5rem; }
.container-lg { padding: 0 2rem; }

/* 排版系统
   ==========================================
 */
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.text-center { text-align: center; }
.text-left { text-align: left; }

/* 颜色系统
   ==========================================
 */
.text-white { color: #ffffff; }
.text-gray-500 { color: #6b7280; }
.text-gray-600 { color: #4b5563; }
.text-gray-800 { color: #1f2937; }
.text-blue-500 { color: #f59e0b; }
.text-blue-600 { color: #ed7d31; }
.text-yellow-500 { color: #eab308; }
.text-green-600 { color: #16a34a; }
.text-purple-600 { color: #9333ea; }
.text-orange-600 { color: #ea580c; }

.bg-white { background-color: #ffffff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-900 { background-color: #111827; }
.bg-blue-100 { background-color: #ffedd5; }
.bg-green-100 { background-color: #dcfce7; }
.bg-purple-100 { background-color: #f3e8ff; }
.bg-orange-100 { background-color: #ffedd5; }
.bg-gradient-to-r { background: linear-gradient(135deg, #ed7d31 0%, #dc2626 100%); }

/* 布局系统
   ==========================================
 */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-center { justify-content: center; }
.space-x-2 > * + * { margin-left: 0.5rem; }
.space-x-3 > * + * { margin-left: 0.75rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-x-8 > * + * { margin-left: 2rem; }

.grid { display: grid; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

/* 间距系统
   ==========================================
 */
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }

.pt-16 { padding-top: 4rem; }
.pt-24 { padding-top: 6rem; }
.pb-12 { padding-bottom: 3rem; }
.pb-16 { padding-bottom: 4rem; }

.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

.pl-2 { padding-left: 0.5rem; }
.pl-3 { padding-left: 0.75rem; }
.pl-4 { padding-left: 1rem; }
.pr-2 { padding-right: 0.5rem; }
.pr-3 { padding-right: 0.75rem; }
.pr-4 { padding-right: 1rem; }

.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.mr-4 { margin-right: 1rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-3 { margin-left: 0.75rem; }
.ml-4 { margin-left: 1rem; }

/* 尺寸系统
   ==========================================
 */
.w-full { width: 100%; }
.h-full { height: 100%; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }

/* 显示系统
   ==========================================
 */
.hidden { display: none; }
@media (min-width: 768px) {
    .md-block { display: block; }
    .md-flex { display: flex; }
    .md-hidden { display: none; }
    .md-pb-0 { padding-bottom: 0; }
}

/* 边框和圆角
   ==========================================
 */
.rounded-lg { border-radius: 0.5rem; }
.rounded-full { border-radius: 9999px; }
.border-t { border-top: 1px solid #e5e7eb; }
.border-b { border-bottom: 1px solid #e5e7eb; }

/* 其他
   ==========================================
 */
.object-cover { object-fit: cover; }
.cursor-pointer { cursor: pointer; }
.transition { transition: all 0.3s ease; }

/* 移动端底部导航
   ==========================================
 */
.mobile-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-around;
    align-items: center;
    background: #ffffff;
    padding: 0.5rem 0;
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 50;
}

.mobile-footer a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    text-decoration: none;
    color: #6b7280;
    font-size: 0.75rem;
    padding: 0.5rem;
}

.mobile-footer a i {
    font-size: 1.25rem;
}

.mobile-footer a.active {
    color: #f59e0b;
}

@media (min-width: 768px) {
    .mobile-footer {
        display: none;
    }
}

/* 组件样式
   ==========================================
 */

/* 头部导航
   ----------
 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 50;
}

.navbar,
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: #1f2937;
    max-height: 100%;
    padding: 0.25rem 0;
}

.nav-logo img {
    max-height: 3.5rem;
    width: auto;
    max-width: 100%;
    object-fit: contain;
}

.nav-logo i {
    font-size: 1.5rem;
    color: #ed7d31;
}

.nav-logo span {
    font-size: 1.25rem;
    font-weight: 700;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 1.5rem;
    color: #eab308;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
}

.nav-links {
    display: none;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    position: relative;
    color: #4b5563;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: #ed7d31;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: #f59e0b;
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-desktop {
    display: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    position: relative;
    color: #4b5563;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #ed7d31;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: #f59e0b;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

@media (min-width: 768px) {
    .nav-links,
    .nav-desktop {
        display: flex;
    }
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* 移动端菜单按钮
   ----------
 */
.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    color: #4b5563;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu {
    position: fixed;
    top: 4rem;
    left: 0;
    right: 0;
    background: #ffffff;
    padding: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    z-index: 40;
    display: none;
}

.mobile-menu.hidden,
.hidden {
    display: none;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e5e7eb;
}

.mobile-menu-header span {
    font-weight: 600;
    color: #1f2937;
}

.mobile-menu-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    color: #4b5563;
}

.mobile-menu-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu-links a {
    display: block;
    padding: 0.75rem 0;
    color: #4b5563;
    text-decoration: none;
    border-bottom: 1px solid #f3f4f6;
}

/* 语言选择器
   ----------
 */
.language-selector {
    position: relative;
    display: flex;
    align-items: center;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #f3f4f6;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: #4b5563;
}

.language-selector {
    position: relative;
    display: flex;
    align-items: center;
}

.lang-dropdown {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.5rem;
    background: #ffffff;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    min-width: 120px;
    z-index: 100;
    display: none;
}

.lang-dropdown.active {
    display: block;
}

.lang-dropdown a {
    display: block;
    padding: 0.75rem 1rem;
    color: #4b5563;
    text-decoration: none;
}

.lang-dropdown a:hover,
.lang-dropdown a.active {
    background: #f3f4f6;
}

.lang-switch {
    position: relative;
    display: flex;
    align-items: center;
}

.lang-switch select {
    padding: 0.5rem 2.25rem 0.5rem 1rem;
    background: #f3f4f6;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: #4b5563;
    appearance: none;
    transition: all 0.2s ease;
}

.lang-switch select:hover {
    background: #e5e7eb;
}

.lang-switch select:focus {
    outline: none;
    background: #e5e7eb;
}

.lang-switch::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: #6b7280;
    pointer-events: none;
    font-size: 0.75rem;
}

.lang-menu {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.5rem;
    background: #ffffff;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    min-width: 120px;
    z-index: 100;
    display: none;
}

.lang-menu.active {
    display: block;
}

.lang-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: #4b5563;
    text-decoration: none;
}

.lang-menu a:hover {
    background: #f3f4f6;
}

/* Hero区域
   ----------
 */
.hero {
    padding-top: 6rem;
    padding-bottom: 4rem;
    background: linear-gradient(135deg, #ed7d31 0%, #dc2626 100%);
    color: #ffffff;
}

.hero-content {
    display: grid;
    gap: 3rem;
}

@media (min-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
}

.hero-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
    letter-spacing: -0.025em;
}

@media (min-width: 640px) {
    .hero-title {
        font-size: 2.25rem;
    }
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
}

.hero-subtitle {
    font-size: 1rem;
    color: #ffedd5;
    margin-bottom: 1.75rem;
    line-height: 1.6;
    opacity: 0.95;
}

@media (min-width: 640px) {
    .hero-subtitle {
        font-size: 1.125rem;
    }
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #ed7d31 0%, #c45d09 100%);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #c45d09 0%, #9a4a07 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.5);
}

.btn-secondary {
    background: transparent;
    color: #4b5563;
    border: 2px solid #d1d5db;
}

.btn-secondary:hover {
    background: #f9fafb;
    border-color: #9ca3af;
    color: #374151;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.hero-badge {
    position: absolute;
    bottom: -1rem;
    right: -1rem;
    background: #facc15;
    color: #1f2937;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 700;
}

.hero-actions .btn-primary {
    background: #ffffff;
    color: #ed7d31;
    box-shadow: 0 4px 14px 0 rgba(0, 0, 0, 0.15);
}

.hero-actions .btn-primary:hover {
    background: #f3f4f6;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px 0 rgba(0, 0, 0, 0.2);
}

.hero-actions .btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.hero-actions .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
}

/* 章节样式
   ----------
 */
.section {
    padding: 3rem 0;
}

.section-compact {
    padding: 1rem 0;
}

.section-white {
    background: #ffffff;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.section-desc {
    color: #4b5563;
    max-width: 42rem;
    margin: 0 auto;
}

/* 特性网格
   ----------
 */
.features-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-card {
    text-align: center;
    padding: 1.5rem;
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    background: #ffedd5;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: #ed7d31;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.feature-desc {
    color: #4b5563;
}

.view-all-products {
    text-align: center;
    margin-top: 2rem;
}

.testimonials-grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.testimonial-card {
    background: #ffffff;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.testimonial-stars {
    display: flex;
    align-items: center;
    color: #eab308;
    margin-bottom: 1rem;
    gap: 0.25rem;
}

.testimonial-text {
    color: #4b5563;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: auto;
    padding-top: 1rem;
}

.testimonial-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.avatar-blue {
    background: #ffedd5;
    color: #ed7d31;
}

.avatar-green {
    background: #dcfce7;
    color: #16a34a;
}

.avatar-purple {
    background: #f3e8ff;
    color: #9333ea;
}

.avatar-orange {
    background: #ffedd5;
    color: #ea580c;
}

.testimonial-name {
    font-weight: 600;
    color: #1f2937;
}

.testimonial-country {
    font-size: 0.875rem;
    color: #6b7280;
}

.cta-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, #ed7d31 0%, #dc2626 100%);
    color: #ffffff;
}

.cta-header .section-title {
    color: #ffffff;
}

.cta-header .section-desc {
    color: rgba(255, 255, 255, 0.9);
}

.cta-btn {
    background: #ffffff;
    color: #ed7d31;
}

.cta-btn:hover {
    background: #f3f4f6;
}

/* 产品卡片
   ----------
 */
.products-grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.product-card {
    background: #ffffff;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.product-image {
    height: 12rem;
    background: #f3f4f6;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info,
.product-content {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-category {
    display: inline-block;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    background: #ffedd5;
    color: #ed7d31;
    align-self: flex-start;
}

.product-name {
    font-weight: 600;
    color: #1f2937;
    margin: 0.5rem 0;
}

.product-card a {
    text-decoration: none;
    color: inherit;
}

.product-card a:hover .product-name {
    color: #ed7d31;
}

.product-desc {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 0.75rem;
}

.product-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 0.75rem;
}

.product-price {
    font-weight: 700;
    color: #ed7d31;
}

.product-link {
    color: #6b7280;
}

.product-link:hover {
    color: #ed7d31;
}

/* 筛选标签
   ----------
 */
.filter-tags-wrapper {
    position: relative;
    width: 100%;
    margin-bottom: 2rem;
}

.filter-tags-scroll {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 0.5rem 0;
}

.filter-tags-scroll::-webkit-scrollbar {
    display: none;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0;
}

.filter-tag {
    padding: 0.5rem 1rem;
    background: #e5e7eb;
    color: #4b5563;
    border-radius: 9999px;
    font-size: 0.875rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.filter-tag:hover,
.filter-tag.active {
    background: #ed7d31;
    color: #ffffff;
}

@media (min-width: 768px) {
    .filter-tags-scroll {
        overflow-x: auto;
        overflow-y: hidden;
        padding: 0.5rem 0;
    }
    
    .filter-tags {
        display: inline-flex;
        flex-wrap: nowrap;
        gap: 0.75rem;
        padding: 0;
    }
    
    .filter-tag {
        flex-shrink: 0;
        white-space: nowrap;
        padding: 0.5rem 1.25rem;
    }
    
    .filter-tags-wrapper.can-scroll-left .filter-tags-scroll {
        padding-left: 3rem;
    }
    
    .filter-tags-wrapper.can-scroll-right .filter-tags-scroll {
        padding-right: 3rem;
    }
}

.filter-arrow {
    display: none;
}

@media (min-width: 768px) {
    .filter-arrow {
        display: flex;
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 2.5rem;
        height: 2.5rem;
        background: #ffffff;
        border: 1px solid #d1d5db;
        border-radius: 50%;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        color: #6b7280;
        cursor: pointer;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 10;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        padding: 0;
        line-height: 1;
    }

    .filter-arrow:hover {
        background: #ed7d31;
        color: #ffffff;
        border-color: #ed7d31;
        box-shadow: 0 4px 12px rgba(237, 125, 49, 0.3);
    }

    .filter-arrow.left {
        left: 0;
        padding-right: 3px;
    }

    .filter-arrow.right {
        right: 0;
        padding-left: 3px;
    }

    .filter-tags-wrapper.show-arrows .filter-arrow {
        opacity: 1;
        visibility: visible;
    }

    .filter-tags-wrapper:not(.can-scroll-left) .filter-arrow.left,
    .filter-tags-wrapper:not(.can-scroll-right) .filter-arrow.right {
        opacity: 0 !important;
        visibility: hidden !important;
    }
}

/* 搜索与排序
   ----------
 */
.toolbar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .toolbar {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 28rem;
}

.search-input,
#search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
}
.search-input:focus,
#search-input:focus {
    outline: none;
    border-color: #f59e0b;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
}

.sort-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #ffffff;
    padding: 0.25rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border: 1px solid #e5e7eb;
}

.sort-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    color: #6b7280;
    background: transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sort-btn:hover {
    background: #f3f4f6;
    color: #4b5563;
}

.sort-btn.active {
    background: linear-gradient(135deg, #ed7d31 0%, #c45d09 100%);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

/* 空结果提示
   ----------
 */
.no-results {
    text-align: center;
    padding: 3rem 0;
}

.no-results-icon {
    font-size: 3rem;
    color: #9ca3af;
    margin-bottom: 1rem;
}

.no-results-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #4b5563;
    margin-bottom: 0.5rem;
}

.no-results-desc {
    color: #6b7280;
}

/* 分页
   ----------
 */
.pagination {
    display: none;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.pagination.active {
    display: flex;
}

.pagination-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    background: #e5e7eb;
    color: #4b5563;
    transition: all 0.2s ease;
}

.pagination-btn:hover {
    background: #d1d5db;
}

.pagination-btn.active {
    background: #ed7d31;
    color: #ffffff;
}

.pagination-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Banner区域
   ----------
 */
.banner {
    padding-top: 6rem;
    padding-bottom: 4rem;
    color: #ffffff;
}

.banner-blue {
    background: linear-gradient(135deg, #ed7d31 0%, #d97706 100%);
}

.banner-green {
    background: linear-gradient(135deg, #16a34a 0%, #0d9488 100%);
}

.banner-orange {
    background: linear-gradient(135deg, #f97316 0%, #dc2626 100%);
}

.banner-purple {
    background: linear-gradient(135deg, #9333ea 0%, #db2777 100%);
}

.banner-cyan {
    background: linear-gradient(135deg, #f97316 0%, #ed7d31 100%);
}

.banner-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .banner-title {
        font-size: 2.25rem;
    }
}

.banner-subtitle,
.banner-desc {
    font-size: 1.125rem;
    opacity: 0.9;
}

.banner-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.banner-breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.banner-breadcrumb a:hover {
    color: #ffffff;
}

/* 产品详情
   ----------
 */
.product-detail-section {
    padding-bottom: 4rem;
}

.product-detail {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .product-detail {
        display: grid;
        grid-template-columns: 55% 45%;
        gap: 1rem;
        align-items: stretch;
    }
}

.product-gallery {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    padding: 1.5rem;
    background: #ffffff;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

@media (min-width: 768px) {
    .product-gallery {
        justify-self: stretch;
    }
}

.product-main-img {
    width: 100%;
    height: auto;
    border-radius: 0.75rem;
    aspect-ratio: 1;
    object-fit: cover;
}

.product-thumbs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    width: 100%;
    max-width: 500px;
}

.product-thumbs .option-btn {
    padding: 0;
    border: 2px solid transparent;
    background: transparent;
}

.product-thumbs .option-btn:hover,
.product-thumbs .option-btn.active {
    border-color: #ed7d31;
    background: transparent;
    color: inherit;
}

.product-thumb {
    width: 100%;
    height: 80px;
    border-radius: 0.5rem;
    cursor: pointer;
    object-fit: cover;
    border: none;
    transition: all 0.2s ease;
}

.product-spec {
    padding: 1.5rem;
    background: #ffffff;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.product-detail-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #ffedd5;
    color: #ed7d31;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    margin-bottom: 1rem;
}

.product-detail-name {
    font-size: 1.875rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.product-detail-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ed7d31;
    margin-bottom: 1.5rem;
}

.product-detail-desc {
    color: #4b5563;
    margin-bottom: 1.5rem;
}

.options-group {
    margin-bottom: 1.5rem;
}

.options-label {
    display: block;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.options-list {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.option-btn {
    padding: 0.5rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    background: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
}

.option-btn:hover,
.option-btn.active {
    border-color: #ed7d31;
    background: #ed7d31;
    color: #ffffff;
}

.qty-control {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.qty-input {
    width: 5rem;
    padding: 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    text-align: center;
}

.product-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

/* 参数表格
   ----------
 */
.specs-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table th,
.specs-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.specs-table th {
    background: #f9fafb;
    font-weight: 600;
    color: #4b5563;
    width: 30%;
}

.specs-wrapper {
    margin-top: 2rem;
}

/* 关于我们
   ----------
 */
.about-section {
    padding: 4rem 0;
}

.about-content {
    display: grid;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 768px) {
    .about-content {
        grid-template-columns: 1fr 1fr;
    }
}

.about-image {
    border-radius: 0.75rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    max-width: 100%;
    height: auto;
    object-fit: cover;
}

.about-text-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.about-text-desc {
    color: #4b5563;
    margin-bottom: 1.5rem;
}

.about-features {
    display: grid;
    gap: 1rem;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.about-feature-icon {
    color: #ed7d31;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.about-feature-text {
    font-weight: 500;
    color: #1f2937;
}

/* 资质认证
   ----------
 */
.certs-grid,
.cert-grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .certs-grid,
    .cert-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.cert-card,
.cert-item {
    background: #ffffff;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.cert-icon {
    font-size: 2.5rem;
    color: #ed7d31;
    margin-bottom: 1rem;
}

.cert-icon-blue {
    color: #ed7d31;
}

.cert-icon-green {
    color: #16a34a;
}

.cert-icon-purple {
    color: #9333ea;
}

.cert-icon-orange {
    color: #ea580c;
}

.cert-title {
    font-weight: 600;
    color: #1f2937;
}

.cert-desc {
    color: #4b5563;
    margin-top: 0.5rem;
}

/* 发展历程
   ----------
 */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, #ed7d31 0%, #dc2626 100%);
}

.timeline-item {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
    position: relative;
}

@media (min-width: 768px) {
    .timeline-item {
        flex-direction: row;
        align-items: center;
    }
    
    .timeline-item:nth-child(odd) {
        flex-direction: row-reverse;
    }
}

.timeline-year {
    background: linear-gradient(135deg, #ed7d31 0%, #c45d09 100%);
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 700;
    font-size: 1.125rem;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    text-align: center;
    min-width: 80px;
}

.timeline-content {
    background: #ffffff;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    flex: 1;
}

@media (min-width: 768px) {
    .timeline-content {
        width: 45%;
        margin-left: 2rem;
    }
    
    .timeline-item:nth-child(odd) .timeline-content {
        margin-left: 0;
        margin-right: 2rem;
    }
}

.timeline-content-title {
    font-weight: 700;
    font-size: 1.25rem;
    color: #1f2937;
    margin-bottom: 0.75rem;
}

.timeline-content-desc {
    color: #4b5563;
    line-height: 1.7;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 1.5rem;
    height: 1.5rem;
    background: linear-gradient(135deg, #ed7d31 0%, #dc2626 100%);
    border-radius: 9999px;
    border: 4px solid #ffffff;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
    z-index: 1;
    top: 4rem;
}

@media (min-width: 768px) {
    .timeline-dot {
        top: 0.75rem;
        transform: translateX(-50%);
    }
}

/* 新闻资讯
   ----------
 */
.news-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.news-tag {
    padding: 0.5rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 9999px;
    background: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #4b5563;
}

.news-tag:hover,
.news-tag.active {
    background: #ed7d31;
    color: #ffffff;
    border-color: #ed7d31;
}

.news-grid {
    display: grid;
    gap: 1.5rem;
    justify-items: center;
}

.loading {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 32rem;
    padding: 5rem 2rem;
    text-align: center;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #ed7d31;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    color: #6b7280;
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.loading-dots {
    display: inline-flex;
    gap: 0.25rem;
}

.loading-dot {
    width: 6px;
    height: 6px;
    background: #9ca3af;
    border-radius: 50%;
    animation: bounce 1.4s ease-in-out infinite both;
}

.loading-dot:nth-child(1) { animation-delay: -0.32s; }
.loading-dot:nth-child(2) { animation-delay: -0.16s; }
.loading-dot:nth-child(3) { animation-delay: 0s; }

@keyframes bounce {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

@media (min-width: 768px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        justify-items: stretch;
    }
}

@media (min-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(3, 1fr);
        justify-items: stretch;
    }
}



.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 34rem;
    padding: 5rem 4rem;
    text-align: center;
    background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
    border-radius: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    margin: 1rem auto;
    max-width: 44rem;
    width: 100%;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.empty-icon-wrapper {
    position: relative;
    margin-bottom: 3rem;
}

.empty-icon {
    width: 13rem;
    height: 13rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ed7d31 0%, #f97316 50%, #f59e0b 100%);
    border-radius: 50%;
    box-shadow: 0 16px 56px rgba(237, 125, 49, 0.4);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    animation: float 6s ease-in-out infinite;
}

.empty-icon:hover {
    transform: scale(1.08);
    box-shadow: 0 24px 72px rgba(237, 125, 49, 0.5);
}

.empty-icon::before {
    content: '📰';
    font-size: 5.5rem;
    animation: bounce 2s ease-in-out infinite;
}

.empty-icon-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 13rem;
    height: 13rem;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 50%, #fcd34d 100%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.4;
    animation: glow-pulse 3s ease-in-out infinite;
}

.empty-icon-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 13rem;
    height: 13rem;
    background: linear-gradient(135deg, rgba(237, 125, 49, 0.3) 0%, rgba(249, 115, 22, 0.2) 100%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    animation: ripple 3s ease-out infinite;
}

.empty-icon-ripple:nth-child(3) {
    animation-delay: 1.5s;
}

@keyframes ripple {
    0% {
        width: 13rem;
        height: 13rem;
        opacity: 0.4;
    }
    100% {
        width: 32rem;
        height: 32rem;
        opacity: 0;
    }
}

@keyframes glow-pulse {
    0%, 100% {
        opacity: 0.3;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1.15);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-6px);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.empty-title {
    font-size: 2rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.empty-desc {
    font-size: 1rem;
    color: #6b7280;
    line-height: 1.75;
    max-width: 26rem;
    margin: 0 auto;
}

.empty-hint {
    margin-top: 2.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid #fde68a;
    border-radius: 0.75rem;
    font-size: 0.9375rem;
    color: #92400e;
    transition: all 0.3s ease;
    cursor: pointer;
}

.empty-hint:hover {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(251, 191, 36, 0.3);
}

.news-card {
    background: #ffffff;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.news-image {
    height: 12rem;
    background: #f3f4f6;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-content {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex-grow: 1;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: #6b7280;
    margin-top: auto;
    padding-top: 0.5rem;
}

.news-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.news-view-link {
    color: #6b7280;
    text-decoration: none;
    transition: color 0.2s ease;
}

.news-view-link:hover {
    color: #ed7d31;
}

.news-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.25rem;
    line-height: 1.5;
}

.news-title a {
    color: #1f2937;
    text-decoration: none;
    transition: color 0.2s ease;
}

.news-title a:hover {
    color: #ed7d31;
}

.news-desc {
    font-size: 0.875rem;
    color: #6b7280;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #ed7d31;
    text-decoration: none;
    font-weight: 500;
    margin-top: 1rem;
}

/* 新闻详情页
   ----------
 */
.news-detail {
    display: grid;
    gap: 2rem;
}

@media (min-width: 1024px) {
    .news-detail {
        grid-template-columns: 1fr 300px;
    }
}

.news-detail-content {
    background: #ffffff;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.news-detail-header {
    padding: 2rem;
    border-bottom: 1px solid #e5e7eb;
}

.news-detail-meta {
    display: flex;
    gap: 1.5rem;
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 1rem;
}

.news-detail-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.news-detail-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1f2937;
    line-height: 1.4;
}

.news-detail-image {
    width: 100%;
    height: 400px;
}

.news-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-detail-body {
    padding: 2rem;
    font-size: 1rem;
    line-height: 1.8;
    color: #4b5563;
}

.news-detail-body p {
    margin-bottom: 1.5rem;
}

.news-detail-body h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin: 2rem 0 1rem;
}

.news-detail-body ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0 1.5rem;
}

.news-detail-body ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.news-detail-body ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #ed7d31;
    font-weight: bold;
}

.news-detail-body img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem 0;
}

.news-detail-body blockquote {
    border-left: 4px solid #ed7d31;
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: #6b7280;
}

.news-detail-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid #e5e7eb;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 768px) {
    .news-detail-footer {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.news-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.news-share-buttons {
    display: flex;
    gap: 0.75rem;
}

.news-share-btn {
    width: 2.5rem;
    height: 2.5rem;
    background: #e5e7eb;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6b7280;
    text-decoration: none;
    transition: all 0.2s ease;
}

.news-share-btn:hover {
    background: #ed7d31;
    color: #ffffff;
}

.news-detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.news-related {
    background: #ffffff;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
}

.news-related-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid #ed7d31;
}

.news-related-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.news-related-item {
    display: flex;
    gap: 0.75rem;
    text-decoration: none;
    padding: 0.75rem;
    border-radius: 0.5rem;
    transition: background 0.2s ease;
}

.news-related-item:hover {
    background: #f9fafb;
}

.news-related-image {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    border-radius: 0.375rem;
    overflow: hidden;
}

.news-related-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-related-info h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.25rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-related-info span {
    font-size: 0.75rem;
    color: #6b7280;
}

.news-related-info span i {
    margin-right: 0.25rem;
}

.news-back-link {
    text-align: center;
}

/* 联系我们
   ----------
 */
.contact-grid {
    display: grid;
    gap: 3rem;
}

@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.contact-info-card {
    background: #ffffff;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: #ffedd5;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ed7d31;
    flex-shrink: 0;
}

.contact-title {
    font-weight: 600;
    color: #1f2937;
}

.contact-value {
    color: #4b5563;
}

.contact-title-large {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.contact-social {
    display: flex;
    gap: 0.75rem;
    margin-top: 2rem;
}

.contact-social a {
    width: 2.5rem;
    height: 2.5rem;
    background: #ffedd5;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ed7d31;
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-social a:hover {
    background: #ed7d31;
    color: #ffffff;
}

.submit-btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    background: linear-gradient(135deg, #ed7d31 0%, #dc2626 100%);
    color: #ffffff;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.3);
}

.contact-form {
    background: #ffffff;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label,
.contact-form label {
    display: block;
    font-weight: 500;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea,
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #f59e0b;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
    background: #ffffff;
}

.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: grid;
    gap: 1rem;
}

@media (min-width: 768px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* 页脚
   ----------
 */
.footer {
    background: #111827;
    color: #ffffff;
    padding: 3rem 0;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1.5fr;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-logo i {
    color: #eab308;
}

.footer-desc {
    color: #9ca3af;
}

.footer-title {
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: nowrap;
}

.footer-links li i {
    flex-shrink: 0;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    text-decoration: none;
}

.footer-social a:hover {
    background: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 3rem;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

/* 移动端底部导航
   ----------
 */
.mobile-nav {
    display: flex;
    justify-content: space-around;
    padding: 0.5rem 0;
    background: #ffffff;
    border-top: 1px solid #e5e7eb;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 50;
}

@media (min-width: 768px) {
    .mobile-nav {
        display: none;
    }
}

.mobile-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #6b7280;
    text-decoration: none;
    font-size: 0.75rem;
}

.mobile-nav a.active {
    color: #ed7d31;
}

.mobile-nav i {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

/* 动画
   ----------
 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 1s ease-in-out;
}

/* 滚动条
   ----------
 */
body::-webkit-scrollbar {
    width: 8px;
}

body::-webkit-scrollbar-track {
    background: #f1f1f1;
}

body::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

body::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* 优雅加载提示
   ----------
 */
.loading-elegant {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 30rem;
    padding: 3rem;
}

.loading-ring {
    position: relative;
    width: 56px;
    height: 56px;
    margin-bottom: 1.5rem;
}

.loading-ring-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: #f59e0b;
    border-right-color: #fbbf24;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: elegant-spin 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

.loading-ring-inner::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 6px;
    right: 6px;
    bottom: 6px;
    border: 3px solid transparent;
    border-top-color: #fcd34d;
    border-right-color: #fde68a;
    border-radius: 50%;
    animation: elegant-spin 1.8s cubic-bezier(0.5, 0, 0.5, 1) infinite reverse;
}

.loading-label {
    font-size: 0.875rem;
    color: #9ca3af;
    letter-spacing: 0.1em;
    animation: gentle-pulse 2s ease-in-out infinite;
}

@keyframes elegant-spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes gentle-pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.form-item {
    margin-bottom: 22px;
}

.form-item label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.form-item input,
.form-item textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    outline: none;
    font-size: 15px;
    border-radius: 4px;
}

.form-item textarea {
    resize: none;
    height: 130px;
}

.code-row {
    display: flex;
    gap: 10px;
    align-items: center;
}

.code-row input {
    flex: 1;
}

#codeImg {
    height: 50px;
    border-radius: 4px;
    cursor: pointer;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: #f39c12;
    color: #2c3e50;
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 4px;
}

.required {
    color: #e74c3c;
    margin-left: 4px;
}

.error-tip {
    color: #e74c3c;
    font-size: 12px;
    display: block;
    margin-top: 6px;
}

.form-item.error input,
.form-item.error textarea {
    border-color: #e74c3c;
}

/* 通用二维码弹窗样式 */
.qr-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
}

.qr-modal.show {
    display: block;
}

.qr-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease-out;
}

.qr-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: #ffffff;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    max-width: 320px;
    width: 90%;
    animation: modalIn 0.3s ease-out forwards;
}

@keyframes modalIn {
    to {
        transform: translate(-50%, -50%) scale(1);
    }
}

.qr-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2rem;
    height: 2rem;
    border: none;
    background: #f3f4f6;
    border-radius: 50%;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    color: #6b7280;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-close:hover {
    background: #e5e7eb;
    color: #1f2937;
}

.qr-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.qr-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
}

.qr-image {
    background: #f9fafb;
    padding: 1rem;
    border-radius: 0.75rem;
    margin-bottom: 1rem;
}

.qr-image img {
    width: 200px;
    height: 200px;
    display: block;
    margin: 0 auto;
}

.qr-hint {
    color: #6b7280;
    font-size: 0.875rem;
    margin: 0 0 1rem;
    line-height: 1.6;
}

.qr-direct-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all 0.3s ease;
}

.qr-direct-btn:hover {
    transform: translateY(-2px);
    color: white;
}

/* 微信二维码弹窗主题 */
.wechat-qr-header i {
    font-size: 1.75rem;
    color: #07c160;
}

/* WhatsApp 二维码弹窗主题 */
.whatsapp-qr-header i {
    font-size: 1.75rem;
    color: #25d366;
}

.whatsapp-direct-btn {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.whatsapp-direct-btn:hover {
    box-shadow: 0 6px 16px rgba(37, 211, 102, 0.4);
}