:root {
    --primary-color: #b82e29;
    --primary-dark: #9b1015;
    --primary-light: #d4232a;
    --secondary-color: #f5a623;
    --bg-light:#f1f3f5;
    --text-dark: #2b2b2b;
    --text-gray: #6b6b6b;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #b82e29, #d4232a);
    --gradient-primary-hover: linear-gradient(135deg, #7d0c10, #b91c22);
    --primary-shadow: rgba(192, 21, 26, 0.4);
    --primary-shadow-hover: rgba(192, 21, 26, 0.55);
    --process-line-color: #e8a0a3;
    --process-icon-bg: #faf1f1;
    --process-hover-shadow: rgba(192, 21, 26, 0.35);
    --platform-intro-bg: linear-gradient(135deg, #fdf5f5, #fef9f8);
    --platform-intro-border: #e8c5c5;
    --product-overlay-bg: linear-gradient(transparent, #000);
    --partner-hover-shadow: rgba(192, 21, 26, 0.15);
    --footer-bg: #2f353e;
    --footer-text: #CCDCEC;
    --footer-heading: white;
    --footer-hotline: #CCDCEC;
    --footer-border: rgba(255,255,255,0.1);
    --footer-bottom-text: #CCDCEC;
    --footer-link-hover: #CCDCEC;
    --features-bar-shadow: 0 4px 16px rgba(192, 21, 26, 0.3);
    --btn-apply-shadow: 0 4px 14px rgba(192, 21, 26, 0.4);
    --btn-apply-hover-shadow: 0 6px 22px rgba(192, 21, 26, 0.55);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* --- Header & Hero Section ---
.hero-section {
    background: url(../banner4.png) no-repeat;
    color: white;
    padding: 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
    background-size: 100% 100%;
    height: auto;
    width: 100%;
}
 */
.logo-area {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.logo-icon {
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 40px;
    box-shadow: 0 0 20px rgba(255,255,255,0.3);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: 4px;
    margin-bottom: 20px;
}

.hero-subtitle {
    display: inline-block;
    background:#30353e;
    backdrop-filter: blur(10px);
    padding: 10px 30px;
    border-radius: 50px;
    font-size: 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* --- Section Common --- */
.section-container {
    max-width: 1200px;
    margin: 30px auto 60px;
    position: relative;
    z-index: 10;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 10px;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 60px; height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* --- Features (模块2) --- */
.features-wrapper {
    margin-bottom: 40px;
}

.features-bar {
    display: flex;
    background: var(--gradient-primary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--features-bar-shadow);
}

.feature-item {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 22px 16px;
    position: relative;
    color: white;
    transition: background 0.3s, transform 0.3s;
}

.feature-item:not(:last-child)::after {
    content: "";
    position: absolute;
    right: 0;
    top: 15%;
    height: 70%;
    width: 1px;
    background: rgba(255,255,255,0.3);
    transform: skewX(-12deg);
}

.feature-item i {
    font-size: 1.3rem;
    opacity: 0.9;
}

.feature-item .feat-title {
    font-size: 1rem;
    font-weight: 600;
}

.feature-item .feat-desc {
    font-size: 0.82rem;
    opacity: 0.8;
}

/* --- Platform Intro --- */
.platform-intro {
       margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 28px;
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.platform-intro-title {
    font-size: 1rem;
    font-weight: 700;
    color: white;
    white-space: nowrap;
    background: var(--gradient-primary);
    padding: 8px 20px;
    border-radius: 6px;
    letter-spacing: 2px;
    flex-shrink: 0;
}

.platform-intro-box {
    flex: 1;
    line-height: 1.8;
    color: var(--text-dark);
    font-size: 0.92rem;
}

.platform-intro-box p {
    margin: 0;
    text-indent: 0;
}

/* --- Products (模块4) --- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
    margin-bottom: 70px;
}

.product-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    height: 360px;
    box-shadow: var(--card-shadow);
}

.product-bg {
    width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s ease;
}

.product-card:hover .product-bg { transform: scale(1.1); }
/*.tbbgt{background-image: url('../yhlogo/20260416171749_344_r.png');}*/
/*.lybjg{background-image: url('../yhlogo/ydjfcjr.png');}*/
.product-overlay {
    position: absolute;
    bottom: 0; left: 0; width: 100%;
    background: var(--product-overlay-bg);
    padding: 30px;
    color: white;
}

.product-overlay h3 { font-size: 1.5rem; margin-bottom: 8px; }
.product-overlay p { font-size: 0.9rem; opacity: 0.9; margin-bottom: 14px; }

.product-overlay .btn-apply {
    display: inline-block;
    padding: 12px 36px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    box-shadow: var(--btn-apply-shadow);
}

.product-overlay .btn-apply i {
    margin-left: 8px;
    transition: transform 0.3s;
}

.product-overlay .btn-apply:hover {
    background: var(--gradient-primary-hover);
    box-shadow: var(--btn-apply-hover-shadow);
    transform: translateY(-3px);
}

.product-overlay .btn-apply:hover i {
    transform: translateX(5px);
}

/* --- Process (模块3) --- */
.process-section {
    margin: 0 0 40px 0;
}

.process-flow {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    position: relative;
    padding: 0 0 20px;
}

.process-item:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 33px;
    left: calc(50% + 42px);
    right: calc(-50% + 42px);
    height: 2px;
    background: var(--process-line-color);
    z-index: 0;
}

.process-item:not(:last-child)::before {
    content: "\f054";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    top: 20px;
    right: -14px;
    width: 28px;
    height: 28px;
    font-size: 12px;
    color: var(--primary-light);
    background: white;
    border: 2px solid var(--process-line-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.process-item {
    text-align: center;
    flex: 1;
    position: relative;
    z-index: 1;
    cursor: pointer;
}

.process-icon-wrap {
    position: relative;
    width: 68px;
    height: 68px;
    margin: 0 auto 16px;
}

.process-icon {
    width: 68px;
    height: 68px;
    background: var(--process-icon-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: all .35s ease;
    border: 1px solid #ebc7c8;
}

.process-item:hover .process-icon {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 6px 24px var(--process-hover-shadow);
}

.process-item h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.process-item p {
    font-size: 0.8rem;
    color: var(--text-gray);
    padding: 0 10px;
    line-height: 1.5;
}

/* --- Information (模块6) --- */
.info-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
}

.info-column h2 {
    font-size: 1.4rem;
    margin-bottom: 25px;
    border-left: 4px solid var(--primary-color);
    padding-left: 15px;
}

.news-item {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px dashed #eee;
    transition: 0.2s;
    cursor: pointer;
}

.news-item:hover { color: var(--primary-color); }

.news-date {
    background: #f9f1f1;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--text-gray);
}

/* --- Partners (模块5) --- */
.partners-carousel {
    position: relative;
    margin-top: 40px;
    padding: 0 50px;
}

.partners-track-wrapper {
    overflow: hidden;
    border-radius: 12px;
    padding: 5px 0;
}

.partners-track {
    display: flex;
    gap: 24px;
    transition: transform 0.5s ease;
}

.partner-box {
    background: white;
    min-width: calc(25% - 18px);
    height: 100px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #f0e5e5;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: 0.3s;
    flex-shrink: 0;
}

.partner-box:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px var(--partner-hover-shadow);
    transform: translateY(-3px);
}

.partner-box img { max-width: 75%; max-height: 60%; object-fit: contain; }

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    border: 1px solid #f0dde0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--primary-color);
    font-size: 16px;
    transition: 0.3s;
    z-index: 5;
}

.carousel-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.carousel-btn.prev { left: 0; }
.carousel-btn.next { right: 0; }

/* AI Assistant Button */
.ai-assistant {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
    cursor: pointer;
    z-index: 100;
}

footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 50px 0 30px;
    font-size: 0.9rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0 40px;
    gap: 40px;
}

.footer-info {
    flex: 1;
}

.footer-info h3 {
    color: var(--footer-heading);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.footer-info p {
    margin-bottom: 10px;
    line-height: 1.8;
}

.footer-info .hotline {
    font-size: 1.4rem;
    color: var(--footer-hotline);
    font-weight: 700;
    margin-top: 12px;
}

.footer-info .hotline i {
    margin-right: 8px;
}

.footer-qrcode {
    display: flex;
    gap: 30px;
}

.qrcode-item {
    text-align: center;
}

.qrcode-item img {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    border: 2px solid rgba(255,255,255,0.15);
    background: white;
    padding: 4px;
}

.qrcode-item p {
    margin-top: 8px;
    font-size: 0.82rem;
    color: var(--footer-text);
}

.footer-bottom {
    max-width: 1200px;
    margin: 30px auto 0;
    padding: 20px 40px 0;
    border-top: 1px solid var(--footer-border);
    text-align: center;
    font-size: 0.82rem;
    color: var(--footer-bottom-text);
}

.footer-bottom a {
    color: var(--footer-bottom-text);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: var(--footer-link-hover);
}