/* ============================================
   desktop.css — 电脑端样式（默认）
   适用于屏幕宽度 > 768px 的设备
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
    --color-white: #ffffff;
    --color-bg-light: #F0F0F0;
    --color-bg-page: #fafafa;
    --color-black: #111111;
    --color-text: #1a1a1a;
    --color-text-secondary: #444444;
    --color-text-muted: #888888;
    --color-accent: #9B1B30;          /* 暗红 */
    --color-accent-hover: #7a1525;
    --color-accent-light: rgba(155, 27, 48, 0.08);
    --color-border: #e0e0e0;
    --color-border-light: #f0f0f0;
    --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --max-width: 1320px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-card: 0 4px 20px rgba(0,0,0,0.04);
    --shadow-hover: 0 12px 36px rgba(0,0,0,0.08);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 全局重置 ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-page);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-accent-hover);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ---------- 通用板块容器 ---------- */
section {
    padding: 100px 40px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: bold;
    color: var(--color-black);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    line-height: 1.25;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ---------- 顶部导航 ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-black);
    letter-spacing: 1px;
}

.logo-mark {
    flex-shrink: 0;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-list a {
    color: var(--color-text);
    font-size: 1.0rem;
    font-weight: normal;
    position: relative;
    transition: color var(--transition-base);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-list a:hover {
    color: var(--color-accent);
}

.nav-list a:hover::after {
    width: 100%;
}

.nav-cta {
    background-color: var(--color-accent) !important;
    color: #fff !important;
    padding: 10px 26px;
    border-radius: var(--radius-sm);
    font-weight: 600 !important;
    transition: background-color var(--transition-base), transform var(--transition-base);
}

.nav-cta:hover {
    background-color: var(--color-accent-hover) !important;
    transform: translateY(-1px);
}

.nav-cta::after {
    display: none;
}

/* 移动端汉堡按钮（桌面端隐藏） */
.menu-toggle {
    display: none;
}

/* ---------- ABOUT 板块 ---------- */
.section-about {
    padding-top: 80px;
    padding-bottom: 100px;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}

.about-desc {
    font-size: 1.08rem;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
    line-height: 1.85;
}

.stats-row {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 24px;
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
    min-width: 100px;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.stat-item:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-hover);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
    font-family: var(--font-heading);
    line-height: 1.2;
    display: flex;
    align-items: baseline;
}

.stat-plus {
    font-size: 1.2rem;
    font-weight: 700;
    margin-left: 2px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: 6px;
    text-align: center;
}

.about-visual {
	display: flex;
	justify-content: center;
	position: relative;
}

.about-img-placeholder {
    width: 100%;
    max-width: 530px;
    height: auto;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.about-img-placeholder img {
    width: 100%;
    height: auto;
    border-radius: 20px;
}

.hero__floating-card {
    position: absolute; bottom: -22px; left: 0px;
    background: #fff; border-radius: 12px; padding: 5px 22px 5px 18px;
    box-shadow: var(--shadow-md); display: flex; align-items: center; gap: 8px;
    font-size: 15px; font-weight: 500; color: var(--color-primary);
}
.hero__floating-card .hero__floating-icon {
    font-size: 24px; 
}



/* ---------- 专业服务板块 (原Competence) ---------- */
.section-services {
    background-color: var(--color-bg-light);
    max-width: 100%;
    padding-left: calc((100% - var(--max-width)) / 2 + 40px);
    padding-right: calc((100% - var(--max-width)) / 2 + 40px);
}

.competence-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.competence-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.competence-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent);
}

.card-icon-wrap {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: none;
    border-radius: 50%;
    transition: background-color var(--transition-base);
}

.competence-card:hover .card-icon-wrap {
    background-color: #FFF7F7;
}

.card-icon-wrap img {
    width: 50px;
    height: 50px;
}

.card-icon-wrap svg {
    width: 38px;
    height: 38px;
}

.competence-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-black);
}

.competence-card p {
    font-size: 1.0rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

/* ---------- 服务案例板块 (原Product) ---------- */
.section-cases .product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.product-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent);
}

.product-visual {
    position: relative;
    padding: 20px;
    background-color: var(--color-bg-page);
    text-align: center;
}

.product-visual svg {
    width: 100%;
    height: auto;
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
    justify-content: center;
}

.product-tag {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    background-color: var(--color-accent-light);
    color: var(--color-accent);
    border-radius: 20px;
    letter-spacing: 0.3px;
}

.product-info {
    padding: 28px 24px 32px;
}

.product-info h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-black);
}

.product-info > p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    line-height: 1.65;
}

.product-specs {
    padding-top: 16px;
    border-top: 1px solid var(--color-border-light);
}

.product-specs li {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    padding: 5px 0;
}

.product-specs strong {
    color: var(--color-black);
    font-weight: 600;
}

/* ---------- 品牌售后板块 ---------- */
.section-brands {
    background-color: var(--color-white);
	max-width: 100%;
    padding-left: calc((100% - var(--max-width)) / 2 + 40px);
    padding-right: calc((100% - var(--max-width)) / 2 + 40px);
}

.partners-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 42px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.partner-item {
    opacity: 0.75;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.partner-item:hover {
    opacity: 1;
    transform: translateY(-3px);
}

.partner-item img {
    width: 170px;
    height: auto;
}

/* ---------- 服务区域板块（新增） ---------- */
.section-areas {
    background-color: var(--color-bg-light);
    max-width: 100%;
    padding-left: calc((100% - var(--max-width)) / 2 + 40px);
    padding-right: calc((100% - var(--max-width)) / 2 + 40px);
}

.areas-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.area-item {
    background-color: var(--color-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-sm);
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    transition: all var(--transition-base);
    min-width: 120px;
    text-align: center;
}

.area-item:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* ---------- 保养指南板块 ---------- */
.section-guides {
    background-color: var(--color-bg-page);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
}

.news-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    position: relative;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-accent);
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
}

.news-date {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.news-category {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 10px;
    background-color: var(--color-accent-light);
    color: var(--color-accent);
    letter-spacing: 0.4px;
}

.news-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-card h3 a {
    color: var(--color-black);
    transition: color var(--transition-base);
}

.news-card h3 a:hover {
    color: var(--color-accent);
}

.news-card p {
    font-size: 1.0rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

/* ---------- 在线预约板块 ---------- */
.section-booking {
    background-color: var(--color-bg-light);
    max-width: 100%;
    padding-left: calc((100% - var(--max-width)) / 2 + 40px);
    padding-right: calc((100% - var(--max-width)) / 2 + 40px);
}

.booking-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 0px;
    max-width: var(--max-width);
    margin: 0 auto;
    align-items: start;
}

.contact-info-side h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 24px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1.2rem;
    color: var(--color-text);
}

.contact-details svg {
    flex-shrink: 0;
    color: var(--color-accent);
}

.booking-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}



/* ---------- 预约表单 ---------- */
.booking {
    padding: 80px 0;
    background-color: var(--color-bg-alt);
}

.booking__form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.booking__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.booking__field {
    margin-bottom: 5px;
}

.booking__field--full {
    grid-column: 1 / -1;
}



.booking__input,
.booking__textarea,
.booking__select {
    width: 100%;
    padding: 18px 20px;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}

.booking__input:focus,
.booking__textarea:focus,
.booking__select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

.booking__textarea {
    resize: vertical;
    min-height: 80px;
}

.booking__field select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
	color: var(--color-text-muted);
}
.booking__field select:invalid {
    color: var(--color-text-muted);
}

.booking__input::placeholder,
.booking__textarea::placeholder,
.booking__select::placeholder
 {
    color: var(--color-text-muted);
}


.btn-submit {
    padding: 16px 40px;
    background-color: var(--color-accent);
    color: #fff;
    font-weight: bold;
    font-size: 1.4rem;
    font-family: var(--font-body);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-base), transform var(--transition-base);
    align-self: flex-start;
}

.btn-submit:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
}



/* ---------- 页脚 ---------- */
.site-footer {
    background-color: #111;
    color: #ccc;
    padding: 60px 40px 30px;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto 0px auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
}

.footer-logo-text {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
}


.footer-brand {
	
}

.footer-brand p {
    color: #999;
    font-size: 0.88rem;
    margin-top: 10px;
    line-height: 1.7;
}
.footer-brand img {
	max-width: 100%;
}

.footer-links h4 {
    font-family: var(--font-heading);
    font-size: 1.0rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

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

.footer-links a {
    font-size: 0.95rem;
    color: #aaa;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    max-width: var(--max-width);
    margin: 60px auto 0;
    padding-top: 24px;
    border-top: 1px solid #333;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: #888;
}