/* ============================================
   主题色配置 —— 东方食养美学
   ============================================ */
:root {
    /* ---- 主色系 ---- */
    --color-primary: #8FA85C;              /* 禾绿 - 沉稳的草木青 */
    --color-primary-dark: #6E8545;         /* 深禾绿 */
    --color-primary-light: #B5C98A;        /* 浅禾绿 */
    --color-primary-rgb: 143, 168, 92;     /* RGB数值 */

    /* ---- 辅助色 ---- */
    --color-accent: #B87B5C;               /* 赭石 - 东方点缀 */
    --color-accent-rgb: 184, 123, 92;
    --color-ink: #2C3324;                  /* 墨绿黑 - 主文字 */
    --color-ink-soft: #4A4F41;             /* 软墨绿 */
    --color-stone: #6B685F;                /* 灰褐 - 次要文字 */
    --color-paper: #F7F5F0;                /* 宣纸米白 - 背景 */
    --color-paper-warm: #EFEBE3;           /* 暖米 */
    --color-white: #FFFFFF;

    /* ---- 文字色 ---- */
    --color-text-primary: var(--color-ink);
    --color-text-secondary: var(--color-stone);
    --color-text-light: #9A968C;
    --color-text-inverse: var(--color-white);

    /* ---- 页脚 ---- */
    --color-footer-bg: #262B21;

    /* ---- 字体 ---- */
    --font-display: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'SimSun', 'STSong', serif;
    --font-body: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* ---- 圆角 ---- */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-full: 50px;

    /* ---- 阴影 ---- */
    --shadow-sm: 0 1px 3px rgba(44, 51, 36, 0.06);
    --shadow-md: 0 6px 20px rgba(44, 51, 36, 0.08);
    --shadow-lg: 0 16px 48px rgba(44, 51, 36, 0.10);
    --shadow-primary: 0 8px 24px rgba(var(--color-primary-rgb), 0.22);

    /* ---- 渐变 ---- */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    --gradient-paper: linear-gradient(180deg, var(--color-paper) 0%, var(--color-paper-warm) 100%);

    /* ---- 过渡 ---- */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   全局样式
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-paper);
    color: var(--color-text-primary);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 24px;
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* ============================================
   通用区块标题
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header-left {
    text-align: left;
}

.section-eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 38px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 14px;
    letter-spacing: 1px;
    line-height: 1.3;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 48px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    margin: 16px auto 0;
}

.section-header-left h2::after {
    margin: 16px 0 0;
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-top: 8px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.section-header-left .section-subtitle {
    margin-left: 0;
    margin-right: 0;
}

/* ============================================
   顶部导航
   ============================================ */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(247, 245, 240, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(44, 51, 36, 0.06);
    z-index: 1000;
    padding: 14px 0;
    transition: box-shadow var(--transition-normal), background var(--transition-normal);
}

.top-nav.scrolled {
    box-shadow: var(--shadow-sm);
    background: rgba(247, 245, 240, 0.98);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-dark);
    letter-spacing: 0.5px;
    text-decoration: none;
    font-family: var(--font-display);
}

.nav-logo img {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--color-text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    position: relative;
    padding: 4px 0;
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: width var(--transition-normal);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-menu-toggle {
    display: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--color-primary-dark);
    transition: transform var(--transition-fast);
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.nav-menu-toggle:hover {
    background: rgba(var(--color-primary-rgb), 0.1);
}

/* ============================================
   首屏展示区
   ============================================ */
.hero-section {
    padding-top: 150px;
    padding-bottom: 110px;
    background: var(--gradient-paper);
    color: var(--color-text-primary);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(44, 51, 36, 0.06);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -15%;
    left: -8%;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--color-accent-rgb), 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--color-primary-dark);
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-text h1 {
    margin-bottom: 24px;
    line-height: 1.25;
}

.hero-title-main {
    display: block;
    font-family: var(--font-display);
    font-size: 58px;
    font-weight: 800;
    color: var(--color-ink);
    letter-spacing: 4px;
    margin-bottom: 12px;
}

.hero-title-sub {
    display: block;
    font-family: var(--font-body);
    font-size: 22px;
    font-weight: 500;
    color: var(--color-primary-dark);
    letter-spacing: 1px;
}

.hero-desc {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin-bottom: 36px;
    line-height: 1.9;
    max-width: 520px;
}

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

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    max-width: 320px;
    border-radius: 28px;
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-14px);
    }
}

/* ============================================
   品牌理念区
   ============================================ */
.philosophy-section {
    padding: 100px 0;
    background-color: var(--color-white);
    position: relative;
}

.philosophy-lead {
    margin-bottom: 72px;
}

.meaning-stack {
    display: flex;
    flex-direction: column;
    gap: 28px;
    max-width: 840px;
    margin: 0 auto;
}

.meaning-item {
    display: flex;
    gap: 28px;
    align-items: flex-start;
    padding: 28px 32px;
    background: var(--color-paper);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-primary);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.meaning-item:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
}

.meaning-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
    line-height: 1.1;
    text-align: center;
    padding: 4px;
}

.meaning-info h3 {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.meaning-info p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

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

.value-card {
    background-color: var(--color-paper);
    padding: 32px 24px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.value-card:hover {
    transform: translateY(-6px);
    background-color: var(--color-white);
    border-color: rgba(var(--color-primary-rgb), 0.18);
    box-shadow: var(--shadow-primary);
}

.value-icon {
    width: 48px;
    height: 48px;
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary-dark);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin: 0 auto 16px;
}

.value-card h4 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.value-card p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

/* ============================================
   创始人故事区
   ============================================ */
.founder-section {
    padding: 100px 0;
    background-color: var(--color-paper);
}

.founder-content {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 72px;
    align-items: start;
}

.founder-visual {
    position: sticky;
    top: 120px;
}

.founder-image-wrapper {
    margin-bottom: 28px;
}

.founder-image {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    object-fit: cover;
}

.founder-info {
    text-align: left;
    margin-top: 20px;
    padding: 24px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.founder-name {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.founder-role {
    font-size: 14px;
    color: var(--color-primary-dark);
    font-weight: 600;
    margin-bottom: 10px;
}

.founder-bio {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.founder-quote {
    background: var(--color-white);
    border-left: 3px solid var(--color-accent);
    padding: 24px 28px;
    margin: 24px 0 28px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    position: relative;
}

.founder-quote::before {
    content: '\201C';
    position: absolute;
    top: 8px;
    left: 16px;
    font-family: var(--font-display);
    font-size: 48px;
    color: rgba(var(--color-accent-rgb), 0.2);
    line-height: 1;
}

.founder-quote p {
    font-size: 16px;
    color: var(--color-text-primary);
    font-style: italic;
    line-height: 1.85;
    font-weight: 500;
    padding-left: 24px;
}

.founder-story p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.9;
    margin-bottom: 16px;
}

.founder-story strong {
    color: var(--color-primary-dark);
    font-weight: 700;
}

.founder-mission {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.mission-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 20px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    border: 1px solid rgba(44, 51, 36, 0.05);
}

.mission-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(var(--color-primary-rgb), 0.12);
}

.mission-item i {
    font-size: 22px;
    color: var(--color-primary-dark);
    flex-shrink: 0;
    margin-top: 2px;
}

.mission-item h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.mission-item p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

/* ============================================
   核心产品区
   ============================================ */
.products-section {
    padding: 100px 0;
    background-color: var(--color-white);
}

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

.product-card {
    background-color: var(--color-paper);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid rgba(44, 51, 36, 0.05);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(var(--color-primary-rgb), 0.15);
}

.product-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.product-body {
    padding: 28px;
}

.product-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--color-primary-dark);
    background: rgba(var(--color-primary-rgb), 0.1);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}

.product-card h3 {
    font-family: var(--font-display);
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--color-text-primary);
    font-weight: 700;
}

.product-body > p {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.product-features {
    list-style: none;
    padding: 0;
    border-top: 1px solid rgba(44, 51, 36, 0.06);
    padding-top: 18px;
}

.product-features li {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-features li::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--color-primary);
    flex-shrink: 0;
}

/* ============================================
   经营准则区
   ============================================ */
.principles-section {
    padding: 100px 0;
    background-color: var(--color-paper);
}

.principles-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.principle-item {
    display: grid;
    grid-template-columns: 64px 64px 1fr;
    gap: 24px;
    align-items: center;
    padding: 28px 32px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    border: 1px solid rgba(44, 51, 36, 0.05);
}

.principle-item:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(var(--color-primary-rgb), 0.12);
}

.principle-number {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: rgba(var(--color-primary-rgb), 0.25);
    line-height: 1;
    text-align: center;
}

.principle-icon {
    width: 48px;
    height: 48px;
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary-dark);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all var(--transition-normal);
}

.principle-item:hover .principle-icon {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
}

.principle-content h3 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 6px;
    line-height: 1.4;
}

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

/* ============================================
   品牌实力区
   ============================================ */
.strength-section {
    padding: 100px 0;
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
    position: relative;
    overflow: hidden;
}

.strength-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.strength-section .section-header h2 {
    color: var(--color-text-inverse);
}

.strength-section .section-header h2::after {
    background: rgba(255, 255, 255, 0.35);
}

.strength-section .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.strength-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.strength-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 36px 20px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.strength-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.22);
}

.strength-icon {
    font-size: 32px;
    margin-bottom: 16px;
    opacity: 0.9;
}

.strength-number {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 800;
    display: inline;
    line-height: 1;
}

.strength-suffix {
    font-size: 18px;
    font-weight: 600;
    opacity: 0.85;
    display: inline;
}

.strength-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 12px 0 10px;
}

.strength-card p {
    font-size: 13px;
    opacity: 0.8;
    line-height: 1.7;
}

.promise-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 48px;
    position: relative;
    z-index: 1;
    padding-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.promise-bar-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 500;
    opacity: 0.9;
}

.promise-bar-item i {
    font-size: 18px;
    opacity: 0.85;
}

/* ============================================
   媒体合作区
   ============================================ */
.media-section {
    padding: 80px 0;
    background-color: var(--color-white);
}

.media-grid {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.media-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 28px 32px;
    background: var(--color-paper);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    min-width: 150px;
    min-height: 110px;
    border: 1px solid rgba(44, 51, 36, 0.05);
}

.media-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(var(--color-primary-rgb), 0.12);
}

.media-card-textonly {
    gap: 0;
}

.media-logo-img {
    width: 100%;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.media-logo-img img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.media-logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: 1px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.media-card > span {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* ============================================
   品牌荣誉区
   ============================================ */
.honors-section {
    padding: 80px 0;
    background-color: var(--color-paper);
}

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

.honor-item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
    aspect-ratio: 2.6 / 1;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(44, 51, 36, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.honor-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.honor-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* ============================================
   公司介绍区
   ============================================ */
.company-section {
    padding: 100px 0;
    background-color: var(--color-white);
    position: relative;
}

.company-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.company-info .section-eyebrow {
    margin-bottom: 14px;
}

.company-info h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 20px;
    letter-spacing: 0.5px;
    line-height: 1.35;
}

.company-desc {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.85;
    margin-bottom: 28px;
}

.company-features {
    margin-bottom: 28px;
}

.company-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    font-weight: 500;
}

.company-feature-item i {
    color: var(--color-primary-dark);
    font-size: 18px;
}

.company-mission {
    font-size: 16px;
    color: var(--color-primary-dark);
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 22px;
    background: rgba(var(--color-primary-rgb), 0.08);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
}

.company-mission i {
    color: var(--color-accent);
}

.company-visual {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.visual-card {
    background-color: var(--color-paper);
    padding: 32px 24px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid rgba(44, 51, 36, 0.05);
    cursor: default;
}

.visual-card:hover {
    transform: translateY(-6px);
    background-color: var(--color-white);
    border-color: rgba(var(--color-primary-rgb), 0.15);
    box-shadow: var(--shadow-primary);
}

.visual-card i {
    font-size: 36px;
    color: var(--color-primary-dark);
    margin-bottom: 12px;
    transition: transform var(--transition-normal);
}

.visual-card:hover i {
    transform: scale(1.1);
}

.visual-card span {
    font-size: 15px;
    color: var(--color-text-primary);
    font-weight: 600;
    display: block;
}

/* ============================================
   下载引导区
   ============================================ */
.download-section {
    padding: 90px 0;
    background: var(--color-paper-warm);
    color: var(--color-text-primary);
    text-align: center;
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(44, 51, 36, 0.06);
    border-bottom: 1px solid rgba(44, 51, 36, 0.06);
}

.download-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.08) 0%, transparent 65%);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.download-content {
    position: relative;
    z-index: 1;
}

.download-content h2 {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 1px;
    color: var(--color-ink);
}

.download-content p {
    font-size: 16px;
    margin-bottom: 36px;
    color: var(--color-text-secondary);
}

.download-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   按钮样式
   ============================================ */
.btn {
    padding: 15px 32px;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(var(--color-primary-rgb), 0.35);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-primary-dark);
    border: 1px solid rgba(var(--color-primary-rgb), 0.35);
}

.btn-secondary:hover {
    background-color: var(--color-paper);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.download-section .btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
}

.download-section .btn-secondary {
    background: transparent;
    border: 1px solid rgba(var(--color-primary-rgb), 0.5);
    color: var(--color-primary-dark);
}

/* ============================================
   页脚信息
   ============================================ */
.main-footer {
    background-color: var(--color-footer-bg);
    color: var(--color-text-light);
    padding: 56px 0 28px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-inverse);
    margin-bottom: 10px;
    letter-spacing: 0.5px;
    font-family: var(--font-display);
}

.footer-logo img {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.footer-slogan {
    font-size: 14px;
    color: var(--color-primary-light);
    margin-bottom: 6px;
    letter-spacing: 2px;
    font-weight: 500;
}

.footer-desc {
    font-size: 13px;
    margin-bottom: 18px;
    opacity: 0.7;
    letter-spacing: 0.5px;
}

.footer-contact {
    margin-bottom: 18px;
}

.footer-contact p {
    font-size: 13px;
    margin-bottom: 6px;
    opacity: 0.8;
}

.footer-contact i {
    color: var(--color-primary-light);
    margin-right: 6px;
    width: 16px;
}

.footer-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 6px;
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 13px;
    transition: color var(--transition-fast);
}

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

.footer-divider {
    opacity: 0.25;
}

.footer-copyright {
    text-align: center;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-copyright p {
    font-size: 12px;
    margin-bottom: 5px;
    opacity: 0.55;
}

.footer-copyright a {
    color: var(--color-primary-light);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer-copyright a:hover {
    opacity: 1;
}

/* ============================================
   页面进入动画
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-section,
.philosophy-section,
.founder-section,
.products-section,
.principles-section,
.strength-section,
.media-section,
.company-section,
.download-section {
    animation: fadeInUp 0.8s ease-out both;
}

.philosophy-section { animation-delay: 0.05s; }
.founder-section { animation-delay: 0.1s; }
.products-section { animation-delay: 0.15s; }
.principles-section { animation-delay: 0.2s; }
.strength-section { animation-delay: 0.25s; }
.media-section { animation-delay: 0.3s; }
.company-section { animation-delay: 0.35s; }
.download-section { animation-delay: 0.4s; }

/* ============================================
   响应式设计
   ============================================ */

/* 平板 */
@media (max-width: 992px) {
    .hero-content,
    .company-content,
    .founder-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        order: 1;
    }

    .hero-visual {
        order: 2;
    }

    .hero-title-main {
        font-size: 46px;
    }

    .hero-title-sub {
        font-size: 18px;
    }

    .hero-desc {
        margin: 0 auto 30px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-seal {
        width: 72px;
        height: 72px;
        font-size: 34px;
        top: 0;
        right: 18%;
    }

    .founder-visual {
        position: static;
        max-width: 420px;
        margin: 0 auto;
    }

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

    .section-header-left {
        text-align: center;
    }

    .section-header-left h2::after {
        margin: 16px auto 0;
    }

    .founder-quote {
        text-align: left;
    }

    .founder-mission {
        grid-template-columns: 1fr;
    }

    .company-mission {
        justify-content: center;
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .strength-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .promise-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .principle-item {
        grid-template-columns: 48px 48px 1fr;
        gap: 16px;
        padding: 22px;
    }

    .principle-number {
        font-size: 22px;
    }

    .principle-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* 手机横屏/大手机 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 66px;
        left: 0;
        right: 0;
        background: rgba(247, 245, 240, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
        border-top: 1px solid rgba(44, 51, 36, 0.06);
        gap: 0;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        padding: 14px 0;
        font-size: 15px;
        border-bottom: 1px solid rgba(44, 51, 36, 0.06);
    }

    .nav-links a:last-child {
        border-bottom: none;
    }

    .nav-menu-toggle {
        display: flex;
    }

    .hero-section {
        padding-top: 120px;
        padding-bottom: 70px;
    }

    .hero-title-main {
        font-size: 38px;
    }

    .hero-title-sub {
        font-size: 17px;
    }

    .hero-seal {
        width: 64px;
        height: 64px;
        font-size: 30px;
        right: 8%;
    }

    .hero-image img {
        max-width: 260px;
    }

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

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

    .section-header h2 {
        font-size: 30px;
    }

    .company-info h2 {
        font-size: 24px;
    }

    .company-content {
        gap: 40px;
    }

    .company-visual {
        gap: 14px;
    }

    .visual-card {
        padding: 24px 16px;
    }

    .download-content h2 {
        font-size: 28px;
    }

    .download-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .main-footer {
        padding: 40px 0 24px;
    }

    .philosophy-section,
    .founder-section,
    .products-section,
    .principles-section,
    .strength-section,
    .media-section,
    .company-section {
        padding: 70px 0;
    }

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

    .meaning-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .meaning-icon {
        width: 52px;
        height: 52px;
        font-size: 22px;
    }

    .media-grid {
        gap: 16px;
    }

    .media-card {
        min-width: 130px;
        padding: 20px 24px;
    }

    .honors-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .promise-bar {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .principle-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 12px;
    }

    .principle-icon {
        margin: 0 auto;
    }

    .principle-number {
        display: none;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .hero-section {
        padding-top: 110px;
        padding-bottom: 50px;
    }

    .hero-title-main {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 14px;
    }

    .hero-seal {
        width: 56px;
        height: 56px;
        font-size: 26px;
        right: 4%;
    }

    .hero-image img {
        max-width: 220px;
    }

    .company-features {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .company-visual {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .visual-card {
        padding: 20px 12px;
    }

    .visual-card i {
        font-size: 30px;
    }

    .btn {
        padding: 14px 24px;
        font-size: 14px;
    }

    .main-footer {
        padding: 32px 0 20px;
    }

    .product-card {
        padding: 24px 20px;
    }

    .strength-number {
        font-size: 40px;
    }

    .honors-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .product-image {
        height: 170px;
    }

    .meaning-item {
        padding: 22px;
    }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}