/* =====================
   熹禾官网 - 简洁大气风格
   白底 · 暖色系 · 清新活力
   ===================== */

/* --- 字体 --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: #333;
    line-height: 1.6;
    background: #ffffff;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

/* --- 配色方案 --- */
:root {
    /* 主色系 */
    --orange: #F97316;        /* 橙色 */
    --orange-light: #FDBA74;  /* 浅橙 */
    --yellow: #FBBF24;        /* 黄色 */
    --yellow-light: #FDE68A;  /* 浅黄 */
    --green: #22C55E;        /* 绿色 */
    --green-light: #86EFAC;   /* 浅绿 */
    --red: #EF4444;          /* 红色 */
    --coral: #F472B6;        /* 珊瑚粉 */
    --teal: #14B8A6;         /* 青色 */
    
    /* 中性色 */
    --primary: #F97316;      /* 主色橙色 */
    --accent: #22C55E;       /* 强调绿色 */
    --white: #ffffff;
    --bg: #FAFAFA;           /* 背景灰白 */
    --bg-warm: #FFFBF5;      /* 暖白背景 */
    --gray-light: #F3F4F6;
    --gray: #9CA3AF;
    --text: #1F2937;
    --text-light: #6B7280;
}

/* --- 通用容器 --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- 导航栏 --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    font-family: 'Poppins', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--orange);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--text);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 15px;
    color: var(--text-light);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--orange);
}

.nav-links a.highlight {
    background: var(--orange);
    color: var(--white);
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
}

.nav-links a.highlight:hover {
    background: var(--text);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(249,115,22,0.3);
}

/* --- Hero 首屏 --- */
.hero {
    min-height: 100vh;
    background: var(--white);
    display: flex;
    align-items: center;
    padding-top: 72px;
    position: relative;
}

/* 左侧装饰 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 80% 20%, rgba(249,115,22,0.08) 0%, transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(34,197,94,0.06) 0%, transparent 40%);
}

.hero-content {
    max-width: 620px;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(249,115,22,0.1);
    color: var(--orange);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-family: 'PingFang SC', sans-serif;
    font-size: 60px;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 24px;
    color: var(--text);
    letter-spacing: -1px;
}

.hero-title .highlight {
    color: var(--orange);
}

.hero-desc {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    background: var(--bg);
    padding: 10px 20px;
    border-radius: 50px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.3s;
}

.hero-tag:hover {
    background: #FFF7ED;
    border-color: var(--orange);
    color: var(--orange);
    transform: translateY(-2px);
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 36px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.btn-primary {
    background: var(--orange);
    color: var(--white);
    box-shadow: 0 8px 24px rgba(249,115,22,0.25);
}

.btn-primary:hover {
    background: #EA580C;
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(249,115,22,0.35);
}

.btn-outline {
    background: var(--white);
    color: var(--text);
    border: 2px solid var(--gray-light);
}

.btn-outline:hover {
    border-color: var(--orange);
    color: var(--orange);
    transform: translateY(-2px);
}

.btn-green {
    background: var(--green);
    color: var(--white);
    box-shadow: 0 8px 24px rgba(34,197,94,0.25);
}

.btn-green:hover {
    background: #16A34A;
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(34,197,94,0.35);
}

/* --- 区块通用样式 --- */
.section {
    padding: 120px 0;
}

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

.section-title h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-light);
}

.section-gray {
    background: var(--bg);
}

.section-warm {
    background: var(--bg-warm);
}

.section-green {
    background: linear-gradient(180deg, #F0FDF4 0%, var(--white) 100%);
}

.section-orange {
    background: linear-gradient(180deg, #FFF7ED 0%, var(--white) 100%);
}

.section-blue {
    background: linear-gradient(180deg, #EFF6FF 0%, var(--white) 100%);
}

/* --- 六步闭环流程 --- */
.process-flow {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px 60px;
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.process-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.process-item.bottom {
    flex-direction: column-reverse;
}

.process-node {
    width: 64px;
    height: 64px;
    background: var(--orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(249,115,22,0.3);
    position: relative;
    z-index: 2;
}

.process-icon {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
}

.process-card {
    text-align: center;
    padding: 24px 20px;
    background: var(--white);
    border-radius: 16px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.3s;
    width: 100%;
}

.process-card:hover {
    transform: translateY(-4px);
    border-color: var(--orange);
    box-shadow: 0 12px 32px rgba(249,115,22,0.1);
}

.process-card h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.process-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

.process-center {
    grid-column: 1 / -1;
    text-align: center;
    margin: -20px 0;
}

.process-center span {
    display: inline-block;
    background: var(--orange);
    color: var(--white);
    padding: 16px 48px;
    border-radius: 50px;
    font-size: 20px;
    font-weight: 700;
    box-shadow: 0 8px 32px rgba(249,115,22,0.35);
}

/* --- 商城架构 --- */
.section-arch {
    background: var(--bg-warm);
}

.arch-diagram {
    max-width: 800px;
    margin: 0 auto;
}

.arch-platform {
    text-align: center;
    background: var(--orange);
    color: var(--white);
    padding: 18px 40px;
    border-radius: 50px;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 40px;
    box-shadow: 0 8px 24px rgba(249,115,22,0.25);
}

.arch-top-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 16px;
}

.arch-block {
    background: var(--white);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    border: 1px solid rgba(0,0,0,0.06);
}

.arch-block h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 14px;
}

.arch-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.arch-tags span {
    display: inline-block;
    background: #FFF7ED;
    color: var(--orange);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
}

.arch-arrows {
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    margin-bottom: 24px;
    color: var(--text-light);
    font-size: 14px;
}

.arch-system {
    background: var(--white);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid rgba(0,0,0,0.06);
}

.arch-system h4 {
    text-align: center;
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 24px;
}

.system-flow {
    display: flex;
    align-items: center;
    gap: 20px;
}

.system-side {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.system-box {
    background: #FFF7ED;
    border: 2px solid var(--orange);
    border-radius: 12px;
    padding: 14px 20px;
    font-weight: 600;
    color: var(--orange);
    font-size: 15px;
    text-align: center;
}

.system-box.right {
    background: #F0FDF4;
    border-color: var(--green);
    color: var(--green);
}

.system-arrows {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
    color: var(--text-light);
}

.system-methods {
    flex: 2;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.method {
    text-align: center;
    padding: 16px 8px;
    background: var(--bg);
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.3s;
}

.method:hover {
    border-color: var(--orange);
    box-shadow: 0 4px 12px rgba(249,115,22,0.08);
}

.method-tag {
    display: inline-block;
    background: var(--orange);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
}

.method p {
    font-size: 13px;
    color: var(--text);
    font-weight: 500;
}

.system-ratio {
    text-align: center;
    margin-top: 20px;
}

.system-ratio span {
    display: inline-block;
    background: #F0FDF4;
    color: var(--green);
    padding: 8px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    border: 1px solid rgba(34,197,94,0.2);
}

/* --- 企业礼包 --- */
.section-gift {
    background: linear-gradient(180deg, var(--white) 0%, #FFF7ED 100%);
}

.gift-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.gift-card {
    background: var(--white);
    border-radius: 24px;
    padding: 48px 40px;
    text-align: center;
    border: 1px solid rgba(0,0,0,0.06);
    position: relative;
    transition: all 0.4s;
}

.gift-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(0,0,0,0.08);
}

.gift-card-featured {
    border: 2px solid var(--orange);
    box-shadow: 0 8px 32px rgba(249,115,22,0.1);
}

.gift-card-featured:hover {
    box-shadow: 0 24px 48px rgba(249,115,22,0.15);
}

.gift-badge {
    display: inline-block;
    background: var(--gray-light);
    color: var(--text-light);
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
}

.gift-badge-hot {
    background: var(--orange);
    color: var(--white);
}

.gift-card h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

.gift-price {
    margin-bottom: 16px;
}

.price-symbol {
    font-size: 24px;
    font-weight: 600;
    color: var(--orange);
    vertical-align: super;
}

.price-num {
    font-size: 52px;
    font-weight: 700;
    color: var(--orange);
    letter-spacing: -1px;
}

.gift-desc {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 28px;
}

.gift-list {
    text-align: left;
    margin-bottom: 32px;
}

.gift-list li {
    padding: 10px 0;
    font-size: 15px;
    color: var(--text);
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

.gift-btn {
    width: 100%;
}

/* --- 关于我们 --- */
.section-about {
    background: var(--white);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 80px;
}

.about-illustration {
    flex-shrink: 0;
    text-align: center;
}

.about-illus-box {
    width: 280px;
    padding: 40px 20px;
    background: linear-gradient(180deg, #FFF7ED 0%, var(--white) 100%);
    border-radius: 24px;
    border: 1px solid rgba(249,115,22,0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about-illus-icon {
    width: 80px;
    height: 80px;
    background: var(--orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    box-shadow: 0 8px 24px rgba(249,115,22,0.3);
}

.about-illus-icon.about-illus-heart {
    background: #EF4444;
    box-shadow: 0 8px 24px rgba(239,68,68,0.3);
}

.about-illus-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(180deg, var(--orange), transparent);
    margin: 8px 0;
}

.about-illus-card {
    display: flex;
    gap: 12px;
}

.about-illus-card span {
    width: 48px;
    height: 48px;
    background: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.about-illus-text {
    margin-top: 20px;
    font-size: 16px;
    font-weight: 600;
    color: var(--orange);
}

.about-text {
    flex: 1;
}

.about-text p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 20px;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 36px;
}

.about-stat {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 32px;
    font-weight: 700;
    color: var(--orange);
    font-family: 'Poppins', sans-serif;
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 4px;
}

/* --- 我们的服务 --- */
.section-service-alt {
    background: var(--bg-warm);
}

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

.our-service-card {
    background: var(--white);
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s;
}

.our-service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.our-service-icon {
    width: 68px;
    height: 68px;
    background: #FFF7ED;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin: 0 auto 24px;
}

.our-service-card:nth-child(1) .our-service-icon { background: #FFF7ED; }
.our-service-card:nth-child(2) .our-service-icon { background: #F0FDF4; }
.our-service-card:nth-child(3) .our-service-icon { background: #FEF3C7; }
.our-service-card:nth-child(4) .our-service-icon { background: #ECFEFF; }

.our-service-card h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 14px;
}

.our-service-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* --- 为什么选择熹禾 --- */
.section-why {
    background: var(--white);
}

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

.why-item {
    text-align: center;
    padding: 40px 24px;
    background: var(--white);
    border-radius: 20px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s;
}

.why-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.why-icon {
    width: 68px;
    height: 68px;
    margin: 0 auto 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
}

.why-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
}

.why-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* --- 客户评价 --- */
.section-testimonials {
    background: var(--bg);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.testimonial-card {
    background: var(--white);
    border-radius: 20px;
    padding: 36px 32px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.testimonial-stars {
    color: #FBBF24;
    font-size: 18px;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 15px;
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #FFF7ED;
    color: var(--orange);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}

.testimonial-author strong {
    display: block;
    font-size: 15px;
    color: var(--text);
    margin-bottom: 2px;
}

.testimonial-author span {
    font-size: 13px;
    color: var(--text-light);
}

/* --- 六步流程 --- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.step-item {
    text-align: center;
    padding: 40px 28px;
    background: var(--white);
    border-radius: 20px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s ease;
}

.step-item:hover {
    transform: translateY(-8px);
    border-color: var(--orange);
    box-shadow: 0 20px 40px rgba(249,115,22,0.1);
}

.step-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    font-size: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
}

.step-item:nth-child(1) .step-icon { background: #FFF7ED; }
.step-item:nth-child(2) .step-icon { background: #FEF3C7; }
.step-item:nth-child(3) .step-icon { background: #F0FDF4; }
.step-item:nth-child(4) .step-icon { background: #ECFEFF; }
.step-item:nth-child(5) .step-icon { background: #FDF2F8; }
.step-item:nth-child(6) .step-icon { background: #FFFBEB; }

.step-num {
    font-family: 'Poppins', sans-serif;
    font-size: 12px;
    font-weight: 600;
    color: var(--orange);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.step-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
}

.step-item p {
    font-size: 15px;
    color: var(--text-light);
}

/* --- 服务介绍 --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    padding: 36px 28px;
    background: var(--white);
    border-radius: 20px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(0,0,0,0.08);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: #FFF7ED;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 24px;
}

.service-card:nth-child(1) .service-icon { background: #FFF7ED; }
.service-card:nth-child(2) .service-icon { background: #F0FDF4; }
.service-card:nth-child(3) .service-icon { background: #FEF3C7; }
.service-card:nth-child(4) .service-icon { background: #ECFEFF; }
.service-card:nth-child(5) .service-icon { background: #FDF2F8; }
.service-card:nth-child(6) .service-icon { background: #FFFBEB; }

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 14px;
}

.service-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
}

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

.feature-item {
    text-align: center;
    padding: 40px 24px;
    background: var(--white);
    border-radius: 20px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s ease;
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.feature-item:nth-child(1) .feature-icon { background: #FFF7ED; }
.feature-item:nth-child(2) .feature-icon { background: #F0FDF4; }
.feature-item:nth-child(3) .feature-icon { background: #FEF3C7; }
.feature-item:nth-child(4) .feature-icon { background: #FDF2F8; }

.feature-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
}

.feature-item p {
    font-size: 14px;
    color: var(--text-light);
}

/* --- 客户案例 --- */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.case-item {
    text-align: center;
    padding: 36px 20px;
    background: var(--white);
    border-radius: 20px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s ease;
}

.case-item:hover {
    transform: translateY(-8px);
    border-color: var(--orange);
}

.case-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.case-item:nth-child(1) .case-icon { background: #FFF7ED; }
.case-item:nth-child(2) .case-icon { background: #F0FDF4; }
.case-item:nth-child(3) .case-icon { background: #FEF3C7; }
.case-item:nth-child(4) .case-icon { background: #ECFEFF; }

.case-item h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.case-item p {
    font-size: 14px;
    color: var(--text-light);
}

/* --- 一站式购物体验 --- */
.section-app {
    background: linear-gradient(180deg, #FFF7ED 0%, var(--white) 100%);
    padding: 120px 0;
}

.app-showcase {
    display: flex;
    align-items: center;
    gap: 80px;
}

.app-content {
    flex: 1;
}

.app-content h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 20px;
}

.app-desc {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 40px;
}

.app-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.app-features li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 20px;
    background: var(--white);
    border-radius: 16px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.3s;
}

.app-features li:hover {
    transform: translateX(8px);
    border-color: var(--orange);
    box-shadow: 0 8px 24px rgba(249,115,22,0.08);
}

.app-feature-icon {
    font-size: 28px;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #FFF7ED;
    border-radius: 12px;
}

.app-features li strong {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
}

.app-features li p {
    font-size: 14px;
    color: var(--text-light);
}

/* --- 手机样机 --- */
.app-mockup {
    flex-shrink: 0;
    text-align: center;
}

.phone-frame {
    width: 300px;
    height: 580px;
    background: #1a1a2e;
    border-radius: 40px;
    padding: 12px;
    position: relative;
    box-shadow: 
        0 30px 80px rgba(0,0,0,0.15),
        0 0 0 1px rgba(255,255,255,0.1);
}

.phone-notch {
    width: 120px;
    height: 28px;
    background: #1a1a2e;
    border-radius: 0 0 16px 16px;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.phone-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px 8px;
    font-size: 12px;
    color: var(--text);
}

.phone-time {
    font-weight: 600;
    font-size: 14px;
}

.phone-icons {
    display: flex;
    gap: 4px;
    font-size: 10px;
}

.mockup-content {
    flex: 1;
    padding: 0 16px 16px;
    display: flex;
    flex-direction: column;
}

.mockup-logo {
    font-size: 22px;
    font-weight: 700;
    color: var(--orange);
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.mockup-banner {
    background: linear-gradient(135deg, var(--orange), #EA580C);
    border-radius: 12px;
    padding: 14px 16px;
    color: var(--white);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    margin-bottom: 16px;
    font-weight: 600;
    font-size: 13px;
}

.mockup-banner span:first-child {
    font-size: 11px;
    opacity: 0.9;
}

.mockup-banner span:last-child {
    font-size: 16px;
}

.mockup-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: auto;
}

.mockup-item {
    text-align: center;
    padding: 12px 8px;
}

.mockup-img {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 6px;
}

.mockup-item p {
    font-size: 12px;
    color: var(--text);
    font-weight: 500;
}

.mockup-bottom-nav {
    display: flex;
    justify-content: space-around;
    padding: 10px 0 4px;
    border-top: 1px solid var(--gray-light);
    font-size: 18px;
}

.mockup-bottom-nav span {
    opacity: 0.4;
    transition: opacity 0.3s;
}

.mockup-bottom-nav span.active {
    opacity: 1;
    color: var(--orange);
}

.phone-caption {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 20px;
}

/* ========== 品牌数据（新版卡片） ========== */
.brand-data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.brand-data-item {
    text-align: center;
    padding: 40px 20px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.brand-data-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.08);
}

.brand-data-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 3px;
    background: linear-gradient(90deg, #F97316, #22C55E);
    border-radius: 3px 3px 0 0;
    opacity: 0;
    transition: opacity 0.3s, left 0.3s, right 0.3s;
}

.brand-data-item:hover::after {
    opacity: 1;
    left: 0;
    right: 0;
}

.bd-icon {
    font-size: 32px;
    margin-bottom: 16px;
}

.bd-num {
    font-family: 'Poppins', sans-serif;
    font-size: 44px;
    font-weight: 700;
    color: #324A6D;
    margin-bottom: 8px;
    line-height: 1.2;
}

.bd-num span {
    font-size: 26px;
}

.bd-label {
    font-size: 15px;
    color: var(--text-light);
    font-weight: 500;
}

/* ========== 品牌故事 ========== */
.brand-story {
    max-width: 900px;
    margin: 0 auto;
}

.brand-story-content {
    margin-bottom: 60px;
}

.brand-story-content p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 2;
    margin-bottom: 20px;
}

.brand-mission {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.mission-item {
    text-align: center;
    padding: 40px 28px;
    background: var(--white);
    border-radius: 20px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s;
}

.mission-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.mission-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    background: #FFF7ED;
    border-radius: 16px;
}

.mission-item:nth-child(1) .mission-icon { background: #FFF7ED; }
.mission-item:nth-child(2) .mission-icon { background: #F0FDF4; }
.mission-item:nth-child(3) .mission-icon { background: #FEF3C7; }

.mission-item h4 {
    font-size: 19px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
}

.mission-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ========== 产品矩阵 ========== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--white);
    border-radius: 20px;
    padding: 36px 24px;
    text-align: center;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 24px 48px rgba(0,0,0,0.08);
}

.product-icon-wrap {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-icon {
    font-size: 32px;
}

.product-card h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.product-subtitle {
    font-size: 13px;
    color: var(--orange);
    font-weight: 500;
    margin-bottom: 14px;
}

.product-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
}

.product-link {
    display: inline-block;
    color: var(--orange);
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s;
}

.product-link:hover {
    color: #EA580C;
    transform: translateX(4px);
}

/* ========== 品牌价值 ========== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.value-item {
    padding: 48px 36px;
    border-radius: 24px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.value-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.value-item-1 { background: linear-gradient(180deg, #FFF7ED 0%, var(--white) 100%); }
.value-item-1::before { background: var(--orange); }
.value-item-1:hover { border-color: #F97316; box-shadow: 0 20px 40px rgba(249,115,22,0.1); }

.value-item-2 { background: linear-gradient(180deg, #F0FDF4 0%, var(--white) 100%); }
.value-item-2::before { background: var(--green); }
.value-item-2:hover { border-color: #22C55E; box-shadow: 0 20px 40px rgba(34,197,94,0.1); }

.value-item-3 { background: linear-gradient(180deg, #ECFEFF 0%, var(--white) 100%); }
.value-item-3::before { background: #14B8A6; }
.value-item-3:hover { border-color: #14B8A6; box-shadow: 0 20px 40px rgba(20,184,166,0.1); }

.value-item:hover {
    transform: translateY(-8px);
}

.value-number {
    font-family: 'Poppins', sans-serif;
    font-size: 48px;
    font-weight: 800;
    color: rgba(0,0,0,0.04);
    position: absolute;
    top: 20px;
    right: 24px;
    line-height: 1;
}

.value-item-1 .value-number { color: rgba(249,115,22,0.1); }
.value-item-2 .value-number { color: rgba(34,197,94,0.1); }
.value-item-3 .value-number { color: rgba(20,184,166,0.1); }

.value-item h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    position: relative;
}

.value-item p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    position: relative;
}

/* ========== 发展历程（时间线） ========== */
.timeline {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 14px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #F97316, #22C55E, #14B8A6);
}

.timeline-item {
    position: relative;
    padding-bottom: 48px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.tl-dot {
    position: absolute;
    left: -32px;
    top: 6px;
    width: 16px;
    height: 16px;
    background: var(--orange);
    border-radius: 50%;
    border: 3px solid var(--white);
    box-shadow: 0 0 0 2px #F97316, 0 4px 12px rgba(249,115,22,0.3);
    z-index: 1;
}

.timeline-item:nth-child(1) .tl-dot { background: #F97316; box-shadow: 0 0 0 2px #F97316, 0 4px 12px rgba(249,115,22,0.3); }
.timeline-item:nth-child(2) .tl-dot { background: #FB923C; box-shadow: 0 0 0 2px #FB923C, 0 4px 12px rgba(251,146,60,0.3); }
.timeline-item:nth-child(3) .tl-dot { background: #22C55E; box-shadow: 0 0 0 2px #22C55E, 0 4px 12px rgba(34,197,94,0.3); }
.timeline-item:nth-child(4) .tl-dot { background: #10B981; box-shadow: 0 0 0 2px #10B981, 0 4px 12px rgba(16,185,129,0.3); }
.timeline-item:nth-child(5) .tl-dot { background: #14B8A6; box-shadow: 0 0 0 2px #14B8A6, 0 4px 12px rgba(20,184,166,0.3); }

.tl-content {
    background: var(--white);
    border-radius: 16px;
    padding: 24px 28px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.3s;
}

.tl-content:hover {
    transform: translateX(8px);
    border-color: var(--orange);
    box-shadow: 0 8px 24px rgba(249,115,22,0.08);
}

.tl-year {
    display: inline-block;
    font-family: 'Poppins', sans-serif;
    font-size: 13px;
    font-weight: 700;
    color: var(--orange);
    background: #FFF7ED;
    padding: 4px 16px;
    border-radius: 50px;
    margin-bottom: 10px;
}

.tl-content h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.tl-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* --- CTA 区域 --- */
.cta {
    background: var(--text);
    text-align: center;
    padding: 100px 0;
}

.cta h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 40px;
}

.cta .btn-primary {
    padding: 18px 56px;
    font-size: 18px;
    background: var(--orange);
}

/* --- 页脚 --- */
.footer {
    background: var(--white);
    color: var(--text-light);
    padding: 80px 0 40px;
    border-top: 1px solid rgba(0,0,0,0.06);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-brand h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--orange);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-light);
}

.footer-links h4 {
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
}

.footer-links ul li {
    margin-bottom: 14px;
}

.footer-links ul li a {
    font-size: 15px;
    color: var(--text-light);
    transition: color 0.3s;
}

.footer-links ul li a:hover {
    color: var(--orange);
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(0,0,0,0.06);
    font-size: 14px;
    color: var(--text-light);
}

.footer-bottom a {
    color: var(--text-light);
    transition: color 0.3s;
}

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

/* --- 右侧悬浮框 --- */
.sidebar {
    position: fixed;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 99;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-item {
    width: 50px;
    height: 50px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    cursor: pointer;
    transition: all 0.3s;
}

.sidebar-item:hover {
    transform: scale(1.1) translateX(-4px);
    box-shadow: 0 8px 24px rgba(249,115,22,0.2);
}

.sidebar-item:nth-child(1):hover {
    box-shadow: 0 8px 24px rgba(34,197,94,0.25);
}

.sidebar-item:nth-child(2):hover {
    box-shadow: 0 8px 24px rgba(249,115,22,0.25);
}

.sidebar-item .icon {
    font-size: 22px;
}

.sidebar-item .qr-code {
    position: absolute;
    right: 65px;
    background: var(--white);
    padding: 16px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    display: none;
    white-space: nowrap;
}

.sidebar-item:hover .qr-code {
    display: block;
}

.sidebar-item .qr-code img {
    width: 130px;
    height: 130px;
    border-radius: 8px;
}

.sidebar-item .qr-code p {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 12px;
    text-align: center;
}

/* --- 弹窗 --- */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 24px;
    max-width: 460px;
    width: 90%;
    padding: 44px;
    position: relative;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--gray-light);
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    color: var(--text-light);
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--orange);
    color: var(--white);
}

.modal h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.modal > .modal-content > p {
    color: var(--text-light);
    margin-bottom: 28px;
    font-size: 15px;
}

.modal-form input,
.modal-form textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--gray-light);
    border-radius: 12px;
    font-size: 15px;
    margin-bottom: 14px;
    font-family: inherit;
    transition: all 0.3s;
}

.modal-form input:focus,
.modal-form textarea:focus {
    outline: none;
    border-color: var(--orange);
}

.modal-form textarea {
    height: 100px;
    resize: none;
}

.modal-form .btn {
    width: 100%;
    margin-top: 8px;
}

/* --- 动画类 --- */
.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* --- 响应式 --- */
/* ========== 产品矩阵（6项网格） ========== */
.products-grid-6 {
    grid-template-columns: repeat(3, 1fr);
}

.products-grid-6 .product-card {
    padding: 32px 20px;
}

@media (max-width: 1200px) {
    .brand-data-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid-6 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .brand-mission,
    .products-grid,
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .our-services-grid,
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .brand-data-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid-6 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .brand-mission,
    .products-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .steps, .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .app-showcase {
        flex-direction: column-reverse;
        gap: 50px;
    }
    
    .app-content h3 {
        text-align: center;
    }
    
    .about-content {
        flex-direction: column;
        gap: 50px;
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gift-cards {
        grid-template-columns: 1fr;
        max-width: 420px;
    }
    
    .system-flow {
        flex-direction: column;
    }
    
    .system-methods {
        width: 100%;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .steps, .services-grid, .features, .cases-grid,
    .products-grid-6,
    .brand-data-grid {
        grid-template-columns: 1fr;
    }
    
    .process-flow {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .process-item.bottom {
        flex-direction: column;
    }
    
    .process-center {
        margin: 0;
    }
    
    .arch-top-row {
        grid-template-columns: 1fr;
    }
    
    .our-services-grid,
    .why-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .gift-card {
        padding: 36px 24px;
    }
    
    .gift-card h3 {
        font-size: 24px;
    }
    
    .price-num {
        font-size: 40px;
    }
    
    .about-illus-box {
        width: 220px;
    }
    
    .section-title h2 {
        font-size: 30px;
    }
    
    .cta h2 {
        font-size: 30px;
    }
    
    .sidebar {
        right: 12px;
    }
    
    .sidebar-item {
        width: 46px;
        height: 46px;
    }
    
    .phone-frame {
        width: 260px;
        height: 500px;
    }
    
    .app-content h3 {
        font-size: 26px;
    }
    
    .app-features li {
        padding: 12px 16px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .modal-content {
        padding: 32px 24px;
    }
}