/* 基础变量 */
:root {
    --rf-gold: #E60012;
    --rf-dark: #111111;
    --rf-grey: #666666;
    --rf-light-grey: #f9f9f9;
    --rf-white: #ffffff;
    --rf-border: #ddd;
}

/* ==================== 桌面端样式（默认） ==================== */
.rf-contact-root {
    background: var(--rf-white);
    color: var(--rf-dark);
    padding: 120px 0;
    overflow: hidden;
    position: relative;
}

.rf-wrapper { 
    max-width: 1440px; 
    margin: 0 auto; 
    padding: 0 30px; 
    position: relative; 
    z-index: 2; 
}

/* 背景大字（仅桌面显示） */
.fixed-bg-text {
    position: absolute;
    top: 5%;
    right: -5%;
    font-size: 200px;
    font-weight: 900;
    color: rgba(0,0,0,0.02);
    pointer-events: none;
    z-index: 1;
}

/* 第一屏：Hero */
.rf-hero-section {
    margin-bottom: 120px;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
}

.top-tag {
    width: 100%;
    color: var(--rf-gold);
    letter-spacing: 5px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 30px;
}

.split-title {
    width: 60%;
    font-size: 64px;
    line-height: 1.1;
    font-weight: 300;
    margin: 0;
}

.split-title span {
    font-weight: 700;
    color: var(--rf-gold);
}

.hero-desc {
    width: 40%;
    padding-left: 50px;
    margin-top: 100px;
    font-size: 16px;
    color: var(--rf-grey);
    line-height: 1.8;
    position: relative;
}
        /* 顶部Banner区域 */
        .top-banner {
            width: 100%;
            height: 420px;
            background: url('../images/contact_bg.jpg') center center/cover no-repeat;
            position: relative;
            display: flex;
            align-items: flex-end;
            padding-bottom: 4rem;
        }
        .top-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.25);
        }
        .banner-title {
            position: relative;
            z-index: 1;
            color: #fff;
            font-size: clamp(2rem, 5vw, 2.5rem);
            font-weight: 700;
            letter-spacing: 2px;
        }

        /* 两栏布局通用样式 */
        .two-column-layout {
            padding: 5rem 0;
            display: flex;
            gap: 4rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .column-left, .column-right {
            flex: 1;
            min-width: 320px;
        }
		.pos{width:1440px;margin:0 auto;padding:0 40px}
.hero-desc::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50px;
    width: 1px;
    height: 100px;
    background: var(--rf-gold);
}

/* 第二屏：流程 */
.rf-process-section {
    margin-bottom: 150px;
}

.section-label {
    font-size: 12px;
    letter-spacing: 3px;
    color: #ccc;
    margin-bottom: 50px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    background: #eee;
}

.process-item {
    background: var(--rf-white);
    padding: 30px;
    min-height: 200px;
    transition: 0.4s;
}

.process-item:nth-child(even) {
    transform: translateY(40px);
}

.process-item:hover {
    background: var(--rf-light-grey);
}

.proc-num {
    font-size: 40px;
    font-weight: 200;
    color: var(--rf-gold);
    display: block;
    margin-bottom: 15px;
    opacity: 0.5;
}

.process-item h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.process-item p {
    font-size: 14px;
    color: var(--rf-grey);
    line-height: 1.6;
}

/* 第三屏：交互 */
.rf-interaction-section {
    display: flex;
    flex-wrap: wrap;
}

.rf-interaction-section .section-label {
    width: 100%;
}

.form-container {
    width: 60%;
    background: var(--rf-light-grey);
    padding: 80px 50px;
}

.form-intro h3 {
    font-size: 28px;
    margin-bottom: 8px;
}

.form-intro p {
    color: var(--rf-grey);
    margin-bottom: 50px;
}

.rf-input-wrap {
    border-bottom: 1px solid var(--rf-border);
    padding-bottom: 8px;
    margin-bottom: 30px;
}

.rf-input-wrap label {
    display: block;
    font-size: 14px;
    text-transform: uppercase;
    color: #000;
    margin-bottom: 8px;
    font-weight: 700;
}

.rf-input-wrap input,
.rf-input-wrap textarea {
    width: 100%;
    border: none;
    background: none;
    font-size: 16px;
    outline: none;
    color: var(--rf-dark);
    font-family: inherit;
}

.rf-input-wrap textarea {
    height: 100px;
    resize: vertical;
    line-height: 1.6;
}

.tag-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.tag {
    padding: 8px 15px;
    border: 1px solid var(--rf-border);
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: 0.3s;
    white-space: nowrap;
}

.tag:hover,
.tag.active {
    border-color: var(--rf-gold);
    color: var(--rf-gold);
    background: rgba(205,164,94,0.05);
}

.rf-submit-btn {
    background: #E60012;
    color: var(--rf-white);
	border-radius: 4px;
    border: none;
    padding: 20px 40px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: 0.4s;
    font-family: inherit;
    font-size: 16px;
    margin-top: 20px;
}

.rf-submit-btn svg {
    width: 20px;
    fill: var(--rf-white);
    transition: 0.4s;
}

.rf-submit-btn:hover {
    background: var(--rf-gold);
    padding-right: 60px;
}

.rf-submit-btn:hover svg {
    transform: translateX(10px);
}

.info-dark-card {
    width: 40%;
    background: #e6e6e6;
    color: var(--rf-white);
    padding: 80px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.info-dark-card::after {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border: 1px solid rgba(255,255,255,0.05);
    transform: rotate(45deg);
}

.contact-method {
    margin-bottom: 50px;
}

.contact-method label {
    color: #000;
    font-size: 16px;
    display: block;
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.tel-link {
    font-size: 32px;
    font-weight: 700;
	color:#111111;
    text-decoration: none;
}

.sub-loc {
    font-size: 13px;
    color: #888;
    margin-top: 8px;
}

.social-links {
    display: flex;
    gap: 30px;
    margin-top: 80px;
    font-size: 12px;
    letter-spacing: 2px;
    color: #555;
}

/* ==================== 手机端样式（768px以下） ==================== */
@media (max-width: 767px) {
    .rf-contact-root {
        padding: 60px 0;
    }

    .rf-wrapper {
        padding: 0 15px;
    }

    /* 隐藏桌面装饰 */
    .fixed-bg-text {
        display: none;
    }

    /* 第一屏：完全堆叠 */
    .rf-hero-section {
        margin-bottom: 60px;
        flex-direction: column;
    }

    .top-tag {
        font-size: 11px;
        margin-bottom: 20px;
    }

    .split-title {
        width: 100%;
        font-size: 32px;
        margin-bottom: 20px;
    }
 .top-banner {
                height: 220px;
                padding-bottom: 2rem;
            }
            .banner-title {
                font-size: 1.8rem;
            }
			.pos{padding:0 14px}
    .hero-desc {
        width: 100%;
        padding-left: 0;
        margin-top: 0;
        font-size: 14px;
    }

    .hero-desc::before {
        display: none;
    }

    /* 第二屏：流程改为2列，无偏移 */
    .rf-process-section {
        margin-bottom: 80px;
    }

    .section-label {
        font-size: 14px;
        margin-bottom: 30px;
    }

    .process-grid {
        grid-template-columns: 1fr 1fr;
    }

    .process-item {
        padding: 20px;
        min-height: 150px;
    }

    .process-item:nth-child(even) {
        transform: none;
    }

    .proc-num {
        font-size: 28px;
        margin-bottom: 10px;
    }

    .process-item h3 {
        font-size: 16px;
        margin-bottom: 5px;
    }

    .process-item p {
        font-size: 12px;
    }

    /* 第三屏：表单和信息完全堆叠 */
    .rf-interaction-section {
        flex-direction: column;
    }

    .form-container {
        width: 100%;
        padding: 40px 20px;
    }

    .form-intro h3 {
        font-size: 22px;
    }

    .form-intro p {
        font-size: 14px;
        margin-bottom: 30px;
    }

    .rf-input-wrap {
        margin-bottom: 20px;
    }

    .rf-input-wrap label {
        font-size: 14px;
    }

    .rf-input-wrap input,
    .rf-input-wrap textarea {
        font-size: 14px;
    }

    .tag-selector {
        gap: 8px;
    }

    .tag {
        padding: 6px 12px;
        font-size: 12px;
    }

    .rf-submit-btn {
        width: 100%;
        justify-content: center;
        padding: 18px 30px;
        font-size: 14px;
    }

    .rf-submit-btn:hover {
        padding-right: 30px;
    }

    .info-dark-card {
        width: 100%;
        padding: 40px 20px;
    }

    .info-dark-card::after {
        display: none;
    }

    .contact-method {
        margin-bottom: 30px;
    }

    .contact-method label {
        font-size: 10px;
    }

    .tel-link {
        font-size: 24px;
    }

    .sub-loc {
        font-size: 12px;
    }

    .social-links {
        gap: 20px;
        margin-top: 40px;
        font-size: 10px;
    }
}