/*
 * 原息企业官网样式
 * iOS 26风格 极简现代设计
 */

:root {
    --brand-primary: #8b5e3c;
    --brand-primary-hover: #73482b;
    --brand-accent: #b38761;
    --brand-accent-soft: #d7b595;
    --brand-dark: #4f3421;
    --brand-dark-deep: #2f1e14;
    --brand-soft: #f4ebe2;
    --brand-soft-alt: #ede0d1;
    --brand-cream: #f8f1ea;
    --brand-surface: #fcf8f3;
    --brand-border: rgba(139, 94, 60, 0.16);
    --brand-border-strong: rgba(139, 94, 60, 0.24);
    --brand-shadow: rgba(111, 69, 39, 0.18);
    --brand-shadow-strong: rgba(111, 69, 39, 0.26);
    --brand-gradient: linear-gradient(135deg, #8b5e3c 0%, #b38761 100%);
    --brand-gradient-hover: linear-gradient(135deg, #73482b 0%, #9f7554 100%);
}

/* ==================== 基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    color: #1d1d1f;
    line-height: 1.5;
    background: var(--brand-surface);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* 移除所有点击蓝条效果和高亮 */
*:focus {
    outline: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-focus-ring-color: transparent;
}

*:active {
    -webkit-tap-highlight-color: transparent;
}

input, button, textarea, select, a {
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.2s ease;
}

a:active {
    opacity: 0.7;
}

ul, ol {
    list-style: none;
}

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

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 28px;
}

/* ==================== SVG图标样式 ==================== */
.icon-svg {
    width: 16px;
    height: 16px;
    display: inline-block;
    vertical-align: middle;
    margin-right: 6px;
}

/* ==================== 头部样式 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(252, 248, 243, 0.92);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(139, 94, 60, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.header-top {
    background: linear-gradient(90deg, var(--brand-dark-deep) 0%, var(--brand-dark) 100%);
    color: #f8f1ea;
    padding: 8px 0;
    font-size: 13px;
    letter-spacing: 0.02em;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-phone {
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-phone svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
}

.header-main {
    padding: 14px 0;
}

.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 48px;
    padding-left: 46px;
    padding-right: 28px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 44px;
}

.logo img,
.logo-image {
    height: 38px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text .brand {
    font-size: 22px;
    font-weight: 600;
    color: var(--brand-dark);
    letter-spacing: -0.02em;
}

.logo-text .slogan {
    font-size: 11px;
    color: #7a6557;
    letter-spacing: 0.02em;
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    gap: 36px;
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    font-size: 14px;
    font-weight: 500;
    color: #1d1d1f;
    padding: 8px 0;
    display: block;
    position: relative;
    letter-spacing: 0.02em;
}

.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--brand-primary);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-menu > li:hover > a::after,
.nav-menu > li.active > a::after {
    width: 100%;
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(255, 250, 245, 0.96);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    min-width: 180px;
    border-radius: 12px;
    box-shadow: 0 12px 28px rgba(79, 52, 33, 0.12);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 8px 0;
    border: 1px solid rgba(139, 94, 60, 0.08);
}

.nav-menu > li:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    font-size: 13px;
    color: #1d1d1f;
    transition: background 0.2s ease;
}

.dropdown-menu li a:hover {
    background: rgba(139, 94, 60, 0.08);
    color: var(--brand-primary);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    margin: -10px;
    -webkit-tap-highlight-color: transparent;
}

.menu-toggle span {
    width: 22px;
    height: 2px;
    background: #1d1d1f;
    border-radius: 1px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ==================== 轮播图样式 ==================== */
.banner {
    position: relative;
    height: 100vh;
    height: 100svh;
    min-height: 720px;
    max-height: none;
    margin-top: 0;
    overflow: hidden;
}

.home-page .banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(5, 10, 20, 0.34) 0%, rgba(5, 10, 20, 0.18) 28%, rgba(5, 10, 20, 0.26) 100%),
        radial-gradient(circle at center, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0) 58%);
    z-index: 2;
    pointer-events: none;
}

.banner-slider {
    position: relative;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.banner-slide.active {
    opacity: 1;
}

.banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -44%);
    text-align: center;
    color: #fff;
    z-index: 10;
    width: min(90%, 860px);
    max-width: 860px;
    padding-top: 56px;
}

.banner-content h2 {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.banner-content p {
    font-size: clamp(16px, 2vw, 22px);
    margin-bottom: 32px;
    font-weight: 300;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

.banner-btn {
    display: inline-block;
    padding: 14px 32px;
    background: var(--brand-gradient);
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    border-radius: 980px;
    box-shadow: 0 16px 30px var(--brand-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.banner-btn:hover {
    background: var(--brand-gradient-hover);
    transform: scale(1.02);
    box-shadow: 0 18px 34px var(--brand-shadow-strong);
}

/* 轮播指示器 */
.banner-dots {
    position: absolute;
    bottom: 42px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 20;
}

.banner-dots .dot {
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.banner-dots .dot.active {
    background: #fff;
    width: 24px;
    border-radius: 4px;
}

/* 轮播箭头 */
.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    transition: all 0.3s ease;
    z-index: 20;
}

.banner-arrow:hover {
    background: rgba(255, 255, 255, 0.35);
}

.banner-arrow.prev { left: 28px; }
.banner-arrow.next { right: 28px; }

/* ==================== 标题样式 ==================== */
.section-title {
    text-align: center;
    margin-bottom: 48px;
}

.section-title h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.section-title p {
    font-size: 17px;
    color: #86868b;
    max-width: 600px;
    margin: 0 auto;
}

/* ==================== 核心优势区块 ==================== */
.features {
    padding: 80px 0;
    background: #f5f5f7;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.features-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.feature-item {
    text-align: center;
    padding: 40px 24px;
    background: #fff;
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    background: var(--brand-gradient);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
    box-shadow: 0 16px 34px rgba(111, 69, 39, 0.16);
}

.feature-item:hover .feature-icon {
    transform: scale(1.05);
}

.feature-icon svg {
    width: 36px;
    height: 36px;
    stroke: #fff;
    stroke-width: 1.5;
    fill: none;
}

.feature-icon.green {
    background: linear-gradient(135deg, #9d6f4b 0%, #c3956d 100%);
}

.feature-icon.orange {
    background: linear-gradient(135deg, #7c4e31 0%, #a97750 100%);
}

.feature-icon.purple {
    background: linear-gradient(135deg, #684230 0%, #8f6448 100%);
}

.feature-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #1d1d1f;
}

.feature-item p {
    font-size: 14px;
    color: #86868b;
    line-height: 1.6;
}

/* ==================== 产品区块 ==================== */
.products {
    padding: 80px 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    position: relative;
    height: 100%;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(210, 210, 215, 0.9);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 24px 64px rgba(15, 23, 42, 0.14);
    border-color: var(--brand-border-strong);
}

.product-image {
    position: relative;
    height: 260px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--brand-soft) 0%, #f7f1eb 52%, var(--brand-surface) 100%);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), filter 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
    filter: saturate(1.03);
}

.product-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(79, 52, 33, 0.08) 0%, rgba(47, 30, 20, 0.5) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-overlay a {
    padding: 11px 24px;
    background: rgba(255, 250, 245, 0.96);
    color: var(--brand-dark);
    border-radius: 980px;
    font-size: 13px;
    font-weight: 600;
    box-shadow: 0 12px 30px rgba(79, 52, 33, 0.18);
    transform: translateY(10px);
    transition: transform 0.3s ease, background 0.2s ease;
}

.product-overlay a:hover {
    background: #fff;
}

.product-card:hover .product-overlay a {
    transform: translateY(0);
}

.product-info {
    padding: 20px 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-info h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 0;
    letter-spacing: -0.01em;
}

.product-info p {
    font-size: 14px;
    color: #6e6e73;
    line-height: 1.7;
}

.product-tag {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 6px 12px;
    border-radius: 980px;
    background: rgba(139, 94, 60, 0.1);
    color: var(--brand-primary) !important;
    font-size: 12px !important;
    font-weight: 600;
    line-height: 1;
}

.view-more {
    text-align: center;
    margin-top: 48px;
}

.view-more-btn {
    display: inline-block;
    padding: 14px 32px;
    background: var(--brand-gradient);
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    border-radius: 980px;
    box-shadow: 0 16px 30px var(--brand-shadow);
    transition: all 0.3s ease;
}

.view-more-btn:hover {
    background: var(--brand-gradient-hover);
    box-shadow: 0 18px 34px var(--brand-shadow-strong);
}

/* ==================== 关于区块 ==================== */
.about {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--brand-surface) 0%, #fff 100%);
}

.about .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h2 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.about-content p {
    font-size: 17px;
    line-height: 1.7;
    margin-bottom: 16px;
    color: #1d1d1f;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 32px;
}

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

.stat-item h3 {
    font-size: 40px;
    font-weight: 600;
    color: var(--brand-primary);
    letter-spacing: -0.02em;
}

.stat-item p {
    font-size: 14px;
    color: #86868b;
    margin: 0;
}

.about-image {
    position: relative;
    isolation: isolate;
    min-height: 420px;
    border-radius: 28px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--brand-soft) 0%, #f7f1eb 52%, var(--brand-soft-alt) 100%);
    box-shadow: 0 24px 70px rgba(79, 52, 33, 0.14);
    contain: paint;
}

.about-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(15, 23, 42, 0.08) 100%);
    pointer-events: none;
}

.about-image img {
    width: 100%;
    height: 100%;
    min-height: 420px;
    aspect-ratio: 5 / 4;
    object-fit: cover;
    border-radius: 28px;
    box-shadow: none;
    display: block;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    animation: none !important;
    transition: none !important;
}

/* ==================== 加盟区块 ==================== */
.join {
    padding: 80px 0;
    background: #fff;
}

.join .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.join-info h3 {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 600;
    margin-bottom: 16px;
}

.join-info > p {
    font-size: 17px;
    color: #86868b;
    line-height: 1.7;
    margin-bottom: 32px;
}

.join-advantages {
    display: grid;
    gap: 20px;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: #f7f1eb;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    background: var(--brand-soft-alt);
}

.advantage-icon {
    width: 48px;
    height: 48px;
    background: var(--brand-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 12px 24px rgba(111, 69, 39, 0.16);
}

.advantage-icon svg {
    width: 24px;
    height: 24px;
    stroke: #fff;
    stroke-width: 1.5;
    fill: none;
}

.advantage-text h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.advantage-text p {
    font-size: 13px;
    color: #86868b;
    margin: 0;
}

.join-form {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, var(--brand-cream) 100%);
    padding: 32px;
    border-radius: 20px;
    border: 1px solid rgba(139, 94, 60, 0.08);
}

.join-form h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: #1d1d1f;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #d2d2d7;
    border-radius: 10px;
    font-size: 15px;
    background: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(139, 94, 60, 0.15);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 14px;
    background: var(--brand-gradient);
    color: #fff;
    border: none;
    border-radius: 980px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    box-shadow: 0 16px 30px var(--brand-shadow);
    transition: all 0.3s ease;
    -webkit-tap-highlight-color: transparent;
}

.submit-btn:hover {
    background: var(--brand-gradient-hover);
    box-shadow: 0 18px 34px var(--brand-shadow-strong);
}

.submit-btn:active {
    transform: scale(0.98);
}

/* ==================== 页脚样式 ==================== */
.footer {
    background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-dark-deep) 100%);
    color: #f5f5f7;
    padding: 48px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    color: #86868b;
    line-height: 1.6;
}

.footer-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 14px;
    color: #86868b;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: #f5f5f7;
}

.footer-contact p {
    font-size: 14px;
    color: #86868b;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact svg {
    width: 16px;
    height: 16px;
    stroke: var(--brand-accent-soft);
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid #424245;
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: #86868b;
    line-height: 1.8;
}

.footer-bottom a {
    color: #86868b;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-bottom a:hover {
    color: #f5f5f7;
}

/* ==================== 滚动动画 ==================== */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== 消息提示 ==================== */
.message-toast {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    padding: 12px 24px;
    background: #1d1d1f;
    color: #fff;
    border-radius: 10px;
    font-size: 14px;
    z-index: 9999;
    animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.message-toast.error {
    background: #ff3b30;
}

@keyframes slideIn {
    to {
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes slideOut {
    to {
        transform: translateX(-50%) translateY(-20px);
        opacity: 0;
    }
}

/* ==================== 分页样式 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: 10px;
    font-size: 14px;
    color: #1d1d1f;
    background: #f5f5f7;
    transition: all 0.2s ease;
}

.pagination a:hover {
    background: #e8e8ed;
}

.pagination .active {
    background: var(--brand-primary);
    color: #fff;
}

/* ==================== 页面横幅 ==================== */
.page-banner {
    padding: 120px 0 60px;
    background: linear-gradient(180deg, var(--brand-cream) 0%, #fff 100%);
    text-align: center;
    margin-top: 88px;
}

.page-banner h1 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    color: var(--brand-dark);
}

.page-banner p {
    font-size: 17px;
    color: #7f6a5b;
    margin-bottom: 16px;
}

.breadcrumb {
    font-size: 13px;
    color: #86868b;
}

.breadcrumb a {
    color: var(--brand-primary);
}

.breadcrumb span {
    margin: 0 8px;
}

/* ==================== 产品筛选 ==================== */
.product-filter {
    padding: 32px 0 24px;
    background: linear-gradient(180deg, var(--brand-cream) 0%, rgba(255, 255, 255, 0.96) 100%);
}

.product-filter-panel {
    padding: 28px;
    border-radius: 30px;
    background: rgba(255, 251, 247, 0.9);
    backdrop-filter: saturate(180%) blur(24px);
    -webkit-backdrop-filter: saturate(180%) blur(24px);
    border: 1px solid rgba(139, 94, 60, 0.1);
    box-shadow: 0 20px 50px rgba(79, 52, 33, 0.08);
}

.filter-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 20px;
}

.filter-label {
    font-size: 14px;
    font-weight: 600;
    margin-right: 4px;
    color: #1d1d1f;
}

.filter-item {
    padding: 9px 16px;
    border-radius: 980px;
    font-size: 13px;
    color: #1d1d1f;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid #d2d2d7;
    transition: all 0.2s ease;
}

.filter-item:hover,
.filter-item.active {
    background: var(--brand-primary);
    color: #fff;
    border-color: var(--brand-primary);
    box-shadow: 0 10px 20px rgba(111, 69, 39, 0.2);
}

.product-search-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    max-width: 540px;
}

.filter-search-input {
    width: 100%;
    min-height: 52px;
    padding: 0 18px;
    border: 1px solid rgba(210, 210, 215, 0.9);
    border-radius: 18px;
    background: #fff;
    font-size: 15px;
    color: #1d1d1f;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.filter-search-input:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 4px rgba(139, 94, 60, 0.12);
}

.filter-search-btn {
    min-height: 52px;
    padding: 0 26px;
    border: none;
    border-radius: 18px;
    background: var(--brand-gradient);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 12px 24px rgba(111, 69, 39, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.filter-search-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 30px rgba(111, 69, 39, 0.24);
}

.filter-search-btn:active {
    transform: scale(0.98);
}

.filter-summary {
    margin-top: 18px;
    font-size: 14px;
    color: #6e6e73;
    line-height: 1.7;
}

.filter-summary strong {
    color: #1d1d1f;
    font-weight: 600;
}

/* ==================== 产品列表 ==================== */
.product-list {
    padding: 56px 0 72px;
    background: linear-gradient(180deg, #fff 0%, var(--brand-surface) 100%);
}

.product-list-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.empty-state {
    text-align: center;
    padding: 72px 24px;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(139, 94, 60, 0.1);
    box-shadow: 0 20px 50px rgba(79, 52, 33, 0.08);
}

.empty-state p {
    font-size: 18px;
    color: #6e6e73;
    margin-bottom: 20px;
}

/* ==================== 产品详情 ==================== */
.product-detail {
    padding: 56px 0 80px;
    margin-top: 0;
    background: linear-gradient(180deg, #fff 0%, var(--brand-surface) 100%);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 32px;
    align-items: stretch;
}

.product-gallery,
.product-detail-info {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(139, 94, 60, 0.1);
    border-radius: 32px;
    box-shadow: 0 20px 60px rgba(79, 52, 33, 0.1);
}

.product-gallery {
    position: sticky;
    top: 120px;
    padding: 24px;
}

.product-main-image {
    border-radius: 24px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--brand-soft) 0%, #f7f1eb 100%);
    margin-bottom: 16px;
    box-shadow: inset 0 0 0 1px rgba(139, 94, 60, 0.1);
}

.product-main-image img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.product-thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(72px, 1fr));
    gap: 12px;
}

.product-thumbnail {
    width: auto;
    height: auto;
    aspect-ratio: 1;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0.72;
    transition: opacity 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    border: 2px solid transparent;
    background: #f5f5f7;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

.product-thumbnail.active,
.product-thumbnail:hover {
    opacity: 1;
    border-color: var(--brand-primary);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(111, 69, 39, 0.16);
}

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

.product-detail-info {
    padding: 36px 32px;
}

.product-detail-info h1 {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.product-subtitle {
    font-size: 18px;
    color: #6e6e73;
    margin-bottom: 24px;
}

.product-desc {
    font-size: 16px;
    line-height: 1.8;
    color: #1d1d1f;
    margin-bottom: 24px;
    padding: 20px 22px;
    border-radius: 20px;
    background: #f5f5f7;
}

.product-meta {
    display: grid;
    gap: 14px;
    margin-bottom: 28px;
}

.product-meta-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 18px;
    border-radius: 18px;
    background: #f8fafc;
    border: 1px solid rgba(210, 210, 215, 0.85);
}

.product-meta-item label {
    font-size: 13px;
    color: #6e6e73;
    min-width: 88px;
    font-weight: 600;
}

.product-meta-item span {
    font-size: 14px;
    line-height: 1.8;
    color: #1d1d1f;
}

.product-action-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}

.inquiry-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    background: var(--brand-gradient);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: 980px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    margin-right: 0;
    box-shadow: 0 14px 30px rgba(111, 69, 39, 0.2);
}

.inquiry-btn:hover {
    background: var(--brand-gradient-hover);
    transform: translateY(-1px);
    box-shadow: 0 18px 34px rgba(111, 69, 39, 0.24);
}

.inquiry-btn.is-secondary {
    background: #fff;
    color: var(--brand-primary);
    border: 1px solid rgba(139, 94, 60, 0.18);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.inquiry-btn.is-secondary:hover {
    background: var(--brand-soft);
}

.product-content {
    margin-top: 32px;
    padding: 32px;
    border-top: none;
    border-radius: 32px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(210, 210, 215, 0.9);
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
}

.product-content h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
}

.product-content-article {
    font-size: 17px;
    line-height: 1.8;
    color: #1d1d1f;
}

.product-content-article img {
    max-width: 100%;
    border-radius: 20px;
    margin: 24px 0;
}

.related-products {
    margin-top: 40px;
}

.section-title.section-title-left {
    text-align: left;
    margin-bottom: 28px;
}

.section-title.section-title-left h2,
.section-title.section-title-left p {
    margin-left: 0;
}

/* ==================== 加盟页面 ==================== */
.join-page {
    padding: 48px 0;
}

.join-page-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
}

.join-sidebar {
    background: #f5f5f7;
    padding: 24px;
    border-radius: 16px;
    height: fit-content;
    position: sticky;
    top: 120px;
}

.join-sidebar h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
}

.join-contact-item {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.join-contact-icon {
    width: 40px;
    height: 40px;
    background: var(--brand-gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.join-contact-icon svg {
    width: 20px;
    height: 20px;
    stroke: #fff;
    stroke-width: 1.5;
    fill: none;
}

.join-contact-text h4 {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
}

.join-contact-text p {
    font-size: 14px;
    color: #86868b;
    margin: 0;
}

.join-main h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 24px;
}

/* ==================== 通用页面区块 ==================== */
.page-section {
    padding: 80px 0;
}

.page-section-muted {
    background: linear-gradient(180deg, var(--brand-cream) 0%, #fff 100%);
}

.page-section-dark {
    background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-dark-deep) 100%);
    color: #fff;
}

.page-section-dark .section-title h2,
.page-section-dark .section-title p {
    color: #fff;
}

.page-section-dark .section-title p {
    opacity: 0.72;
}

.page-copy {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.page-copy p {
    font-size: 16px;
    line-height: 2;
    color: #6e6e73;
    margin-bottom: 24px;
}

.page-copy p:last-child {
    margin-bottom: 0;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.metric-card {
    text-align: center;
    padding: 32px 24px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.metric-card h3 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.metric-card p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.72);
}

.info-card-grid,
.culture-grid,
.flow-grid {
    display: grid;
    gap: 24px;
}

.info-card-grid {
    grid-template-columns: repeat(3, 1fr);
    max-width: 980px;
    margin: 0 auto;
}

.culture-grid {
    grid-template-columns: repeat(3, 1fr);
}

.flow-grid {
    grid-template-columns: repeat(4, 1fr);
}

.info-card,
.culture-card,
.flow-card {
    background: #fff;
    border-radius: 24px;
    padding: 36px 28px;
    box-shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover,
.culture-card:hover,
.flow-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 48px rgba(15, 23, 42, 0.12);
}

.info-card {
    text-align: center;
}

.info-card-icon,
.step-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.info-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: var(--brand-gradient);
    color: #fff;
    box-shadow: 0 16px 34px rgba(111, 69, 39, 0.16);
}

.info-card-icon.green {
    background: linear-gradient(135deg, #9d6f4b 0%, #c3956d 100%);
}

.info-card-icon.orange {
    background: linear-gradient(135deg, #7c4e31 0%, #a97750 100%);
}

.info-card-icon.purple {
    background: linear-gradient(135deg, #684230 0%, #8f6448 100%);
}

.info-card-icon svg {
    width: 30px;
    height: 30px;
    stroke: currentColor;
    stroke-width: 1.6;
    fill: none;
}

.info-card h4,
.culture-card h3,
.flow-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 12px;
}

.info-card p,
.culture-card p,
.flow-card p {
    font-size: 14px;
    color: #86868b;
    line-height: 1.8;
}

.culture-card {
    text-align: center;
}

.step-badge {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--brand-gradient);
    color: #fff;
    font-size: 28px;
    font-weight: 600;
    box-shadow: 0 16px 34px rgba(111, 69, 39, 0.16);
}

.flow-card {
    text-align: center;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1200px) {
    .products-grid,
    .product-list-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .header-main .container {
        gap: 24px;
        padding-left: 28px;
        padding-right: 28px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: calc(100% + 8px);
        left: 16px;
        right: 16px;
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: saturate(180%) blur(24px);
        -webkit-backdrop-filter: saturate(180%) blur(24px);
        padding: 12px 20px 16px;
        flex-direction: column;
        gap: 0;
        border: 1px solid rgba(210, 210, 215, 0.7);
        border-radius: 24px;
        box-shadow: 0 24px 48px rgba(15, 23, 42, 0.14);
        max-height: calc(100vh - 120px);
        overflow-y: auto;
        animation: slideDown 0.3s ease forwards;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu > li > a {
        padding: 14px 0;
        border-bottom: 1px solid #f5f5f7;
    }
    
    .nav-menu > li > a::after {
        display: none;
    }
    
    .dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        background: #f5f5f7;
        border-radius: 10px;
        margin-top: 8px;
        opacity: 1;
        visibility: visible;
        padding: 8px 0;
    }
    
    .dropdown-menu li a {
        padding: 10px 16px;
        font-size: 14px;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .about .container,
    .join .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        order: -1;
    }
    
    .metric-grid,
    .culture-grid,
    .info-card-grid,
    .flow-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid,
    .product-list-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .product-gallery {
        position: static;
    }
    
    .join-page-grid {
        grid-template-columns: 1fr;
    }
    
    .join-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .page-section {
        padding: 60px 0;
    }
    
    .header-top .container {
        flex-direction: column;
        gap: 4px;
        text-align: center;
    }
    
    .header-top-left {
        font-size: 12px;
    }
    
    .banner {
        height: 100vh;
        height: 100svh;
        min-height: 100svh;
        margin-top: 0;
    }

    .banner-content {
        width: calc(100% - 40px);
        padding-top: 72px;
    }

    .banner-dots {
        bottom: 28px;
    }

    .banner-arrow {
        width: 44px;
        height: 44px;
    }

    .banner-arrow.prev { left: 14px; }
    .banner-arrow.next { right: 14px; }
    
    .banner-content h2 {
        font-size: 28px;
    }
    
    .banner-content p {
        font-size: 15px;
    }
    
    .features,
    .products,
    .about,
    .join {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    
    .feature-item {
        padding: 24px 16px;
    }
    
    .feature-icon {
        width: 56px;
        height: 56px;
        margin-bottom: 16px;
    }
    
    .feature-icon svg {
        width: 28px;
        height: 28px;
    }
    
    .about-stats {
        justify-content: center;
    }
    
    .page-copy p {
        font-size: 15px;
    }
    
    .metric-card h3 {
        font-size: 36px;
    }
    
    .info-card,
    .culture-card,
    .flow-card {
        padding: 28px 20px;
    }
    
    .stat-item h3 {
        font-size: 32px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .join-form {
        padding: 24px;
    }
    
    .advantage-item {
        padding: 12px;
    }
    
    .advantage-icon {
        width: 40px;
        height: 40px;
    }
    
    .advantage-icon svg {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .logo-text .brand {
        font-size: 18px;
    }
    
    .logo-image {
        height: 30px;
    }
    
    .logo-text .slogan {
        font-size: 10px;
    }
    
    .products-grid,
    .product-list-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid,
    .metric-grid,
    .culture-grid,
    .info-card-grid,
    .flow-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .product-image {
        height: 200px;
    }
    
    .page-banner {
        padding: 100px 0 40px;
        margin-top: 120px;
    }
    
    .filter-list {
        justify-content: center;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
}

@media (max-width: 992px) {
    .product-filter-panel {
        padding: 24px;
        border-radius: 26px;
    }

    .product-search-form {
        max-width: none;
    }

    .about-image {
        min-height: 320px;
    }

    .about-image img {
        min-height: 320px;
    }

    .product-detail-info,
    .product-gallery,
    .product-content {
        border-radius: 28px;
    }
}

@media (max-width: 768px) {
    .product-search-form {
        grid-template-columns: 1fr;
    }

    .filter-search-input,
    .filter-search-btn {
        min-height: 48px;
        border-radius: 16px;
    }

    .product-gallery {
        padding: 20px;
    }

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

    .product-content {
        padding: 24px;
    }

    .product-action-group {
        flex-direction: column;
    }

    .product-action-group .inquiry-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .product-filter-panel {
        padding: 20px;
        border-radius: 22px;
    }

    .about-image {
        min-height: 280px;
    }

    .about-image img {
        min-height: 280px;
    }

    .product-detail-info,
    .product-gallery,
    .product-content {
        border-radius: 24px;
    }

    .product-thumbnail {
        border-radius: 12px;
    }
}

/* ==================== 移动端遮罩 ==================== */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    display: block;
    opacity: 1;
}