/* ===== CSS Variables ===== */
:root {
    --primary: #1a4d2e;
    --primary-light: #2d6a4f;
    --primary-dark: #0f2f1c;
    --secondary: #0d7377;
    --secondary-light: #14919b;
    --accent: #d4a853;
    --accent-light: #e8c77a;
    --text-primary: #1a1a2e;
    --text-secondary: #4a5568;
    --text-muted: #5a6779;
    --text-light: #a0aec0;
    --bg-primary: #ffffff;
    --bg-secondary: #f8faf9;
    --bg-tertiary: #f0f4f2;
    --bg-dark: #0f2f1c;
    --border: #e2e8e4;
    --border-light: #edf2ef;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
    --shadow-2xl: 0 25px 60px rgba(0, 0, 0, 0.15);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Typography Scale - 模块化字号阶梯 */
    /* 标题字体：优先苹方/华文宋体，Windows 上优先思源宋体，最后才回落 SimSun */
    --font-serif: 'Songti SC', 'STSong', 'Source Han Serif SC', 'Noto Serif SC', 'STZhongsong', 'Noto Serif CJK SC', 'SimSun', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', monospace;
    
    /* Font sizes - 1.25 比例 (Major Third) */
    --fs-xs: 12px;
    --fs-sm: 13px;
    --fs-base: 15px;
    --fs-md: 16px;
    --fs-lg: 18px;
    --fs-xl: 20px;
    --fs-2xl: 24px;
    --fs-3xl: 28px;
    --fs-4xl: 32px;
    --fs-5xl: 42px;
    --fs-6xl: 56px;
    --fs-hero: 64px;
    
    /* Line heights */
    --lh-tight: 1.2;
    --lh-snug: 1.4;
    --lh-normal: 1.6;
    --lh-relaxed: 1.8;
    
    /* Font weights */
    --fw-light: 300;
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;
    --fw-black: 900;
    
    /* Letter spacing */
    --ls-tight: -0.02em;
    --ls-normal: 0;
    --ls-wide: 0.02em;
    --ls-wider: 0.05em;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    font-size: var(--fs-base);
    font-weight: var(--fw-regular);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: var(--lh-relaxed);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    font-feature-settings: "kern" 1, "palt" 1;
}

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

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

select {
    font-family: inherit;
    cursor: pointer;
}

/* ===== Container ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* ===== 线性图标（替换 emoji） ===== */
.icon-sprite {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

.icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
    vertical-align: middle;
}

/* 仅屏幕阅读器可见 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== Section ===== */
.section {
    padding: 100px 0;
    position: relative;
}

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

.section-tag {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: var(--fw-medium);
    letter-spacing: var(--ls-wider);
    color: var(--secondary);
    text-transform: uppercase;
    margin-bottom: 16px;
    position: relative;
    padding: 0 24px;
}

.section-tag::before,
.section-tag::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 16px;
    height: 1px;
    background: var(--secondary);
    opacity: 0.5;
}

.section-tag::before {
    left: 0;
}

.section-tag::after {
    right: 0;
}

.section-title {
    font-family: var(--font-serif);
    font-size: var(--fs-5xl);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: var(--ls-tight);
    line-height: var(--lh-tight);
}

.section-subtitle {
    font-size: var(--fs-md);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: var(--lh-relaxed);
    font-weight: var(--fw-regular);
}

.section-header.light .section-tag {
    color: var(--accent);
}

.section-header.light .section-tag::before,
.section-header.light .section-tag::after {
    background: var(--accent);
}

.section-header.light .section-title {
    color: #ffffff;
}

.section-header.light .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

/* 版式变化：宽屏下标题左、说明右，避免每个区块都是同一套居中模板 */
@media (min-width: 1025px) {
    .section-header.split {
            display: grid;
            grid-template-columns: minmax(0, 1fr) minmax(0, 480px);
            align-items: end;
            column-gap: 40px;
        text-align: left;
        margin-bottom: 56px;
    }

    .section-header.split .section-tag {
        grid-column: 1;
        justify-self: start;
    }

    .section-header.split .section-title {
        grid-column: 1;
        margin-bottom: 0;
    }

        .section-header.split .section-subtitle {
            grid-column: 2;
            grid-row: 1 / span 2;
            max-width: none;
            margin: 0;
            padding-bottom: 6px;
            text-align: left;
        }
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(26, 77, 46, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(26, 77, 46, 0.4);
}

.btn-primary .btn-arrow {
    width: 18px;
    height: 18px;
    transition: var(--transition);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: #ffffff;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* Button ripple effect */
.btn-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

.btn-outline .btn-ripple {
    background: rgba(26, 77, 46, 0.15);
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Button active state */
.btn:active {
    transform: scale(0.97);
}

.btn-primary:active {
    transform: translateY(0) scale(0.97);
    box-shadow: 0 2px 8px rgba(26, 77, 46, 0.25);
}

.btn-outline:active {
    transform: translateY(0) scale(0.97);
}

/* ===== Skip Link (Accessibility) ===== */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #ffffff;
    padding: 12px 24px;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 10000;
    transition: top 0.3s ease;
    text-decoration: none;
}

.skip-link:focus {
    top: 0;
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 14px 0;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, background 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease;
}

.navbar.nav-hidden {
    transform: translateY(-100%);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-mark {
    width: 40px;
    height: 40px;
    color: #ffffff;
    transition: var(--transition);
}

.navbar.scrolled .logo-mark {
    color: var(--primary);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-cn {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
}

.logo-en {
    font-size: 10px;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
}

.navbar.scrolled .logo-cn {
    color: var(--text-primary);
}

.navbar.scrolled .logo-en {
    color: var(--text-muted);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    position: relative;
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    transition: var(--transition);
}

.navbar.scrolled .nav-link {
    color: var(--text-secondary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 20px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
    color: var(--primary);
}

.navbar.scrolled .nav-link::after {
    background: var(--primary);
}

.nav-contact {
    background: var(--accent);
    color: var(--primary-dark) !important;
    border-radius: var(--radius-sm);
    padding: 8px 20px !important;
    font-weight: 600 !important;
    margin-left: 8px;
}

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

.nav-contact::after {
    display: none !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #ffffff;
    transition: var(--transition);
    border-radius: 2px;
}

.navbar.scrolled .nav-toggle span {
    background: var(--text-primary);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: #ffffff;
    padding-top: 90px;
    box-sizing: border-box;
    /* 兜底渐变：背景图未载或加载失败时白字不隐身 */
    background: linear-gradient(135deg, #0f2f1c, #2d6a4f);
}

.hero-bg-image {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(15, 47, 28, 0.85) 0%, 
        rgba(26, 77, 46, 0.7) 50%, 
        rgba(13, 115, 119, 0.75) 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    color: rgba(255, 255, 255, 0.3);
    opacity: 0.3;
}

.floating-elements {
    position: absolute;
    inset: 0;
    color: rgba(212, 168, 83, 0.4);
}

.float-element {
    position: absolute;
    animation: float 6s ease-in-out infinite;
}

.elem-1 {
    top: 15%;
    right: 10%;
    width: 120px;
    height: 120px;
    animation-delay: 0s;
}

.elem-2 {
    bottom: 20%;
    left: 8%;
    width: 150px;
    height: 150px;
    animation-delay: 2s;
}

.elem-3 {
    top: 60%;
    right: 20%;
    width: 80px;
    height: 80px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 0 32px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: var(--fs-sm);
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
    letter-spacing: var(--ls-wide);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.hero-title {
    font-family: var(--font-serif);
    font-size: var(--fs-hero);
    font-weight: var(--fw-bold);
    line-height: var(--lh-tight);
    margin-bottom: 24px;
    letter-spacing: var(--ls-tight);
}

.title-line {
    display: block;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.title-line:first-child {
    animation-delay: 0.2s;
}

.title-line.accent {
    color: var(--accent);
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 19px;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 48px;
    line-height: var(--lh-relaxed);
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    font-weight: var(--fw-light);
    letter-spacing: var(--ls-wide);
}

.hero-subtitle-lead {
    color: #ffffff;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    margin-bottom: 48px;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.8s forwards;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 32px;
}

.stat-value {
    display: flex;
    align-items: baseline;
    gap: 2px;
}

.stat-number {
    font-family: var(--font-serif);
    font-size: 48px;
    font-weight: var(--fw-bold);
    color: var(--accent);
    line-height: 1;
    letter-spacing: -0.03em;
}

.stat-suffix {
    font-size: var(--fs-lg);
    color: var(--accent);
    font-weight: var(--fw-medium);
}

.stat-label {
    font-size: var(--fs-xs);
    color: rgba(255, 255, 255, 0.7);
    margin-top: 8px;
    letter-spacing: var(--ls-wide);
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
}

/* ===== Hero Badges ===== */
.hero-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 36px;
}

.hero-badge-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    font-size: var(--fs-sm);
    color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: var(--transition);
}

.hero-badge-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.hero-badge-icon {
    color: var(--accent);
    font-weight: var(--fw-bold);
    font-size: var(--fs-sm);
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 16px;
    opacity: 0;
    animation: fadeInUp 0.8s ease 1s forwards;
}

.hero-cta .btn-outline {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.4);
}

.hero-cta .btn-outline:hover {
    background: #ffffff;
    color: var(--primary);
}

/* 深色首屏上主按钮改金色实底：深绿渐变与背景对比仅约 1.2:1 */
.hero-cta .btn-primary {
    background: var(--accent);
    color: #14291b;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
}

.hero-cta .btn-primary:hover {
    background: var(--accent-light);
    color: #14291b;
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.34);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
    letter-spacing: 2px;
    z-index: 10;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.5));
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% {
        transform: scaleY(1);
        transform-origin: top;
    }
    50% {
        transform: scaleY(0.5);
        transform-origin: top;
    }
}

/* ===== Trust Bar ===== */
.trust-bar {
    background: #ffffff;
    padding: 32px 0;
    border-bottom: 1px solid var(--border-light);
    position: relative;
    z-index: 10;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.trust-item:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.trust-icon {
    font-size: 28px;
    flex-shrink: 0;
    color: var(--primary);
}

.trust-icon .icon {
    width: 26px;
    height: 26px;
}

.trust-text h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.trust-text p {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== Clients / Partners Section ===== */
.clients-section {
    padding: 40px 0 48px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
}

.clients-title {
    text-align: center;
    font-size: var(--fs-sm);
    color: var(--text-muted);
    margin-bottom: 24px;
    letter-spacing: var(--ls-wide);
    font-weight: var(--fw-medium);
}

.clients-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    align-items: stretch;
}

.clients-logos .client-logo {
    flex: 0 0 calc(20% - 16px);
}

.client-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    padding: 14px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: default;
}

.client-logo:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 字符徽标：无客户授权 logo 时用首字标记，避免整面文字墙 */
.client-mark {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(26, 77, 46, 0.09);
    color: var(--primary);
    font-family: var(--font-serif);
    font-size: 19px;
    font-weight: var(--fw-bold);
    line-height: 1;
}

.client-logo:nth-child(3n + 2) .client-mark {
    background: rgba(13, 115, 119, 0.1);
    color: var(--secondary);
}

.client-logo:nth-child(3n) .client-mark {
    background: rgba(212, 168, 83, 0.18);
    color: #7d5f18;
}

.client-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.client-logo-text {
    font-family: var(--font-serif);
    font-size: 15px;
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    letter-spacing: var(--ls-wide);
    line-height: 1.3;
}

.client-logo-type {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: var(--ls-wide);
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 客户墙：按可用宽度递减列数，避免客户名称被挤成多行 */
@media (min-width: 821px) and (max-width: 1024px) {
    .clients-logos .client-logo {
        flex: 0 0 calc(25% - 12px);
    }
}

@media (min-width: 481px) and (max-width: 820px) {
    .clients-logos .client-logo {
        flex: 0 0 calc(33.333% - 11px);
    }
}

/* ===== About ===== */
.about {
    background: var(--bg-primary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 80px;
}

.about-images {
    position: relative;
}

.about-img-main {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-img-main img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.about-img-main:hover img {
    transform: scale(1.05);
}

.img-badge {
    position: absolute;
    bottom: 24px;
    left: 24px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 700;
    line-height: 1;
}

.badge-text {
    font-size: 13px;
    opacity: 0.9;
    margin-top: 4px;
}

.about-img-sub {
    position: absolute;
    right: -30px;
    bottom: -30px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sub-card {
    background: #ffffff;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
}

.sub-card:hover {
    transform: translateX(-4px);
    box-shadow: var(--shadow-xl);
}

.sub-icon {
    font-size: 24px;
    color: var(--secondary);
}

.sub-icon .icon {
    width: 24px;
    height: 24px;
}

.sub-card h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.sub-card p {
    font-size: 12px;
    color: var(--text-muted);
}

.about-heading {
    font-family: var(--font-serif);
    font-size: var(--fs-3xl);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    line-height: var(--lh-snug);
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.accent-text {
    color: var(--primary);
    position: relative;
    display: inline-block;
}

.accent-text::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 8px;
    background: rgba(212, 168, 83, 0.25);
    z-index: -1;
    border-radius: 4px;
}

.about-intro .lead {
    font-size: var(--fs-md);
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: var(--lh-relaxed);
    font-weight: var(--fw-medium);
}

.about-intro p {
    color: var(--text-secondary);
    margin-bottom: 14px;
    line-height: var(--lh-relaxed);
    font-size: var(--fs-base);
}

.about-intro strong {
    color: var(--primary);
    font-weight: var(--fw-semibold);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    border-radius: var(--radius-md);
    transition: var(--transition-slow);
}

.feature-item:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-icon svg {
    width: 22px;
    height: 22px;
}

.feature-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

/* Position Cards */
.position-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pos-card {
    background: #ffffff;
    padding: 28px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.pos-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
}

.pos-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.pos-card:hover::before {
    transform: scaleX(1);
}

.pos-card.highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ffffff;
    border-color: transparent;
}

.pos-card.highlight h4,
.pos-card.highlight p {
    color: #ffffff;
}

.pos-card.highlight .pos-num {
    color: rgba(255, 255, 255, 0.3);
}

.pos-num {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 700;
    color: rgba(26, 77, 46, 0.1);
    line-height: 1;
    margin-bottom: 12px;
}

.pos-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.pos-card p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ===== Business Segments ===== */
.business-segments {
    background: var(--bg-secondary);
}

.segments-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.segment-card {
    position: relative;
    background: #ffffff;
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    border: 1px solid var(--border-light);
    transition: var(--transition-slow);
    overflow: hidden;
}

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

.segment-card.gov::before {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.segment-card.agri::before {
    background: linear-gradient(90deg, var(--secondary), var(--accent));
}

.segment-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: transparent;
}

.segment-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
}

.segment-card.gov .segment-icon {
    background: linear-gradient(135deg, rgba(26, 77, 46, 0.1), rgba(13, 115, 119, 0.1));
    color: var(--primary);
}

.segment-card.agri .segment-icon {
    background: linear-gradient(135deg, rgba(13, 115, 119, 0.1), rgba(212, 168, 83, 0.1));
    color: var(--secondary);
}

.segment-card:hover .segment-icon {
    transform: scale(1.1) rotate(-5deg);
}

.segment-icon svg {
    width: 44px;
    height: 44px;
}

.segment-badge {
    display: inline-block;
    padding: 4px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-secondary);
    border-radius: 50px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.segment-title {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.segment-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.segment-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 28px;
}

.segment-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
}

.segment-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}

.segment-list li span {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
}

.segment-stats {
    display: flex;
    gap: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

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

.seg-num {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}

.segment-card.agri .seg-num {
    color: var(--secondary);
}

.seg-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ===== Services ===== */
.services {
    background: var(--bg-primary);
}

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

.service-card {
    position: relative;
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-slow);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: transparent;
}

.service-image {
    height: 140px;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
    position: relative;
    overflow: hidden;
}

.service-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(212,168,83,0.2) 0%, transparent 40%);
}

.service-img-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-category {
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    color: #ffffff;
    font-size: 13px;
    font-weight: 500;
}

.service-icon {
    position: relative;
    margin: -32px 24px 0;
    z-index: 2;
}

.icon-shape {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    color: var(--primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: 2px solid #ffffff;
    transition: var(--transition-slow);
}

.service-card:hover .icon-shape {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    transform: rotate(5deg) scale(1.1);
}

.icon-shape svg {
    width: 30px;
    height: 30px;
}

.service-number {
    position: absolute;
    top: 16px;
    right: 24px;
    font-family: var(--font-serif);
    font-size: 48px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.2);
    line-height: 1;
    z-index: 1;
}

.service-card .service-content {
    padding: 20px 24px 28px;
}

.service-title {
    font-size: var(--fs-xl);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    margin: 16px 24px 12px;
    line-height: var(--lh-snug);
    letter-spacing: -0.01em;
}

.service-desc {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    line-height: var(--lh-relaxed);
    margin: 0 24px 16px;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 0 24px 28px;
}

.service-list li {
    position: relative;
    padding-left: 20px;
    font-size: var(--fs-sm);
    color: var(--text-muted);
    line-height: var(--lh-normal);
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--secondary);
    border-radius: 50%;
}

/* ===== Technology ===== */
.technology {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.tech-bg {
    position: absolute;
    inset: 0;
}

.tech-grid-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    position: relative;
    z-index: 1;
}

.tech-card {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-slow);
}

.tech-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(212, 168, 83, 0.4);
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.tech-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

.tech-card:hover .tech-image img {
    transform: scale(1.08);
}

.tech-content {
    padding: 28px;
}

.tech-badge {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 700;
    border-radius: 50px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.tech-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #ffffff;
}

.tech-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 20px;
}

.tech-points {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tech-points li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
}

.point-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    background: var(--accent);
    border-radius: 50%;
    position: relative;
}

.point-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 7px;
    height: 7px;
    background: var(--primary-dark);
    border-radius: 50%;
}

/* ===== Products ===== */
.products {
    background: var(--bg-primary);
}

.product-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 48px;
}

.product-tab {
    padding: 12px 22px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 50px;
    transition: var(--transition);
}

.product-tab:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
}

.product-tab.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(26, 77, 46, 0.3);
}

.product-detail {
    position: relative;
    min-height: 500px;
}

.product-panel {
    display: none;
    animation: fadeIn 0.5s ease;
}

.product-panel.active {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    background: #ffffff;
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-lg);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.product-image img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-panel:hover .product-image img {
    transform: scale(1.03);
}

.product-image-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-md);
}

.product-image-badge span {
    font-size: 24px;
}

.product-image-badge .icon {
    width: 22px;
    height: 22px;
    color: var(--primary);
}

.product-image-badge p {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.product-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--secondary);
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.product-name {
    font-family: var(--font-serif);
    font-size: var(--fs-3xl);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: var(--lh-snug);
    letter-spacing: -0.01em;
}

.product-desc {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    line-height: var(--lh-relaxed);
    margin-bottom: 28px;
}

.product-features h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 14px;
    position: relative;
    padding-left: 16px;
}

.product-features h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 18px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 28px;
}

.feature-cell {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
}

.feature-dot {
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

.product-value {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

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

.value-number {
    display: block;
    font-family: var(--font-serif);
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    color: var(--primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.value-label {
    display: block;
    font-size: var(--fs-xs);
    color: var(--text-muted);
    margin-top: 4px;
    letter-spacing: var(--ls-wide);
}

/* ===== Product Value Section ===== */
.product-value-section {
    padding: 60px 0;
    background: var(--bg-primary);
}

.value-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-xl);
    padding: 44px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    position: relative;
    overflow: hidden;
}

.value-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(212, 168, 83, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.value-banner-content h2 {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.value-banner-content p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
}

.value-banner-items {
    display: flex;
    gap: 20px;
}

.banner-item {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 168px;
    color: #ffffff;
}

.banner-icon {
    font-size: 32px;
    color: var(--accent-light);
}

.banner-icon .icon {
    width: 30px;
    height: 30px;
}

.banner-item h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 2px;
}

.banner-item p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
}

@media (min-width: 1025px) {
    .banner-item p {
        white-space: nowrap;
    }
}

/* ===== Advantages ===== */
.advantages {
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.advantage-item {
    text-align: center;
    padding: 40px 28px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: var(--transition-slow);
}

.advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.advantage-item:hover::before {
    width: 100%;
}

.advantage-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
}

.advantage-item:hover .advantage-icon {
    transform: rotateY(180deg);
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

.advantage-icon svg {
    width: 36px;
    height: 36px;
}

.advantage-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.advantage-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

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

.advantages-bottom {
    text-align: center;
}

.slogan {
    font-family: var(--font-serif);
    font-size: 20px;
    color: var(--text-muted);
    letter-spacing: 2px;
}

/* ===== Cases / Application Scenarios ===== */
.cases {
    background: var(--bg-primary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition-slow);
    border: 1px solid transparent;
}

.case-card:hover {
    transform: translateY(-6px);
    background: #ffffff;
    box-shadow: var(--shadow-xl);
    border-color: var(--border-light);
}

.case-card.highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ffffff;
}

.case-card.highlight h3,
.case-card.highlight p,
.case-card.highlight li {
    color: #ffffff;
}

.case-card.highlight .case-features li {
    color: rgba(255, 255, 255, 0.9);
}

.case-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

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

.case-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.case-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.case-features li {
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== Cooperation ===== */
.cooperation {
    background: var(--bg-secondary);
}

.cooperation-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.coop-card {
    position: relative;
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    border: 1px solid var(--border-light);
    transition: var(--transition-slow);
}

.coop-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.coop-card.featured {
    border-color: var(--primary);
    background: linear-gradient(180deg, #ffffff 0%, var(--bg-secondary) 100%);
}

.coop-number {
    font-family: var(--font-serif);
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.15;
    line-height: 1;
    margin-bottom: 16px;
}

.coop-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.coop-subtitle {
    font-size: 13px;
    color: var(--secondary);
    margin-bottom: 20px;
    font-weight: 500;
}

.coop-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.coop-list li {
    position: relative;
    padding-left: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

.coop-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
    font-size: 12px;
}

.coop-price {
    padding-top: 20px;
    border-top: 1px dashed var(--border);
}

.price-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-right: 8px;
}

.price-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
}

.coop-badge {
    position: absolute;
    top: 28px;
    right: 24px;
    padding: 4px 12px;
    background: var(--accent);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 600;
    border-radius: 50px;
}

.cooperation-footer {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.coop-slogan {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.coop-slogan-sub {
    font-size: 15px;
    color: var(--text-muted);
}

/* ===== Vision ===== */
.vision {
    position: relative;
    padding: 120px 0;
    overflow: hidden;
    color: #ffffff;
}

.vision-bg-image {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.vision-bg-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vision-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(15, 47, 28, 0.9) 0%, 
        rgba(26, 77, 46, 0.85) 50%, 
        rgba(13, 115, 119, 0.8) 100%);
}

.vision-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.vision-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 3px;
    color: var(--accent);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.vision-title {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 12px;
}

.vision-subtitle {
    font-size: 18px;
    color: var(--accent);
    letter-spacing: 4px;
    margin-bottom: 12px;
}

.vision-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 60px;
}

.vision-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.vision-item {
    text-align: center;
    transition: var(--transition-slow);
}

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

.vision-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: var(--accent);
    transition: var(--transition-slow);
}

.vision-item:hover .vision-icon {
    background: rgba(212, 168, 83, 0.15);
    border-color: var(--accent);
    transform: scale(1.1);
}

.vision-icon svg {
    width: 36px;
    height: 36px;
}

.vision-item h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 8px;
}

.vision-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== Contact ===== */
.contact {
    background: var(--bg-primary);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info {
    padding: 20px 0;
}

.contact-title {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 16px 0 16px;
    line-height: 1.3;
}

.contact-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.contact-highlights {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
    padding: 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 14px;
}

.highlight-icon {
    font-size: 24px;
    color: var(--secondary);
}

.highlight-icon .icon {
    width: 24px;
    height: 24px;
}

.highlight-item h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.highlight-item p {
    font-size: 13px;
    color: var(--text-muted);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    border-radius: var(--radius-md);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-text h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.contact-text p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-form-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 48px 40px;
}

.contact-form h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 28px;
}

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

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1.5px solid transparent;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    outline: none;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(26, 77, 46, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-tip {
    text-align: center;
    font-size: var(--fs-xs);
    color: var(--text-muted);
    margin-top: 16px;
}

.form-consent {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 4px 0 18px;
    font-size: var(--fs-xs);
    line-height: 1.7;
    color: var(--text-muted);
    cursor: pointer;
}

.form-consent input {
    flex: 0 0 auto;
    width: 16px;
    height: 16px;
    margin-top: 3px;
    accent-color: var(--primary);
    cursor: pointer;
}

.form-consent a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.form-consent.error {
    color: #c53030;
}

.form-consent.error input {
    outline: 2px solid #e53e3e;
    outline-offset: 2px;
}

.consent-error {
    margin-left: 26px;
    margin-top: -12px;
    margin-bottom: 14px;
}

.form-consent.error + .consent-error {
    display: block;
    animation: errorShake 0.3s ease;
}

/* Form validation styles */
.form-group {
    position: relative;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
    border-color: #e53e3e;
    background: #fff5f5;
}

.form-group.error input:focus,
.form-group.error textarea:focus,
.form-group.error select:focus {
    border-color: #e53e3e;
    box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.1);
}

.form-group.success input,
.form-group.success textarea,
.form-group.success select {
    border-color: #38a169;
}

.error-message {
    display: none;
    color: #c53030;
    font-size: var(--fs-xs);
    margin-top: 6px;
    line-height: 1.5;
}

.form-group.error .error-message {
    display: block;
    animation: errorShake 0.3s ease;
}

@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

.form-success-message {
    display: none;
    text-align: center;
    padding: 16px;
    background: #f0fff4;
    border: 1px solid #9ae6b4;
    border-radius: var(--radius-md);
    color: #22543d;
    font-size: var(--fs-sm);
    margin-bottom: 16px;
}

.form-success-message.show {
    display: block;
    animation: successPop 0.4s ease;
}

@keyframes successPop {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: #ffffff;
}

.footer-logo .logo-cn {
    color: #ffffff;
}

.footer-logo .logo-en {
    color: rgba(255, 255, 255, 0.5);
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 12px;
}

.footer-slogan {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
}

.footer-address {
    margin-top: 14px;
    font-size: 13px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.5);
}

.footer-sep {
    margin: 0 2px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h3 {
    font-size: 15px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 20px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-col a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.62);
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-bottom {
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.62);
}

.footer-bottom p:first-child {
    margin-bottom: 4px;
}

.footer-bottom a {
    display: inline-block;
    padding: 10px 6px;
    color: inherit;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(26, 77, 46, 0.4);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* ===== Scroll Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Image Fade-in on Load ===== */
img {
    opacity: 0;
    transition: opacity 0.5s ease;
}

img.loaded {
    opacity: 1;
}

/* Picture element responsive */
picture {
    display: block;
    width: 100%;
    height: 100%;
}

picture img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Aspect ratio boxes - prevent CLS
   注意：hero-bg-image / vision-bg-image 是 absolute+inset:0 背景层，
   不能加 aspect-ratio（会覆盖 inset 拉伸导致高度塌缩），由 img width/height 属性防 CLS */
.about-img-main {
    aspect-ratio: 4 / 3;
}

.tech-image {
    aspect-ratio: 16 / 10;
}

.product-image {
    aspect-ratio: 16 / 10;
}

/* Image placeholder / skeleton */
.hero-bg-image,
.about-img-main,
.tech-image,
.product-image,
.vision-bg-image {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ===== Reduced Motion Support ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .float-element {
        animation: none !important;
    }
    
    .badge-dot {
        animation: none !important;
    }
    
    .scroll-line {
        animation: none !important;
    }
    
    .hero-title .title-line,
    .hero-subtitle,
    .hero-stats,
    .hero-cta {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
    
    .service-card,
    .tech-card,
    .advantage-item,
    .coop-card,
    .vision-item,
    .position-item,
    .feature-item,
    .segment-card,
    .case-card,
    .pos-card {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
    
    img {
        opacity: 1 !important;
        transition: none !important;
    }
    
    .hero-bg-image,
    .about-img-main,
    .tech-image,
    .product-image,
    .vision-bg-image {
        animation: none !important;
    }
}

/* ===== Lightbox ===== */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    padding: 40px 60px;
    backdrop-filter: blur(8px);
}

.lightbox.active {
    display: flex;
    animation: lightboxFadeIn 0.3s ease;
}

@keyframes lightboxFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.lightbox-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 100%;
    max-height: 100%;
    animation: lightboxScaleIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes lightboxScaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.lightbox-picture {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 90vw;
    max-height: 75vh;
}

.lightbox-image {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
    opacity: 1 !important;
}

.lightbox-caption {
    color: rgba(255, 255, 255, 0.9);
    margin-top: 20px;
    font-size: var(--fs-md);
    text-align: center;
    max-width: 600px;
    line-height: var(--lh-normal);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.lightbox-close {
    top: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    font-size: 28px;
    line-height: 1;
}

.lightbox-prev,
.lightbox-next {
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    font-size: 20px;
}

.lightbox-prev {
    left: 24px;
}

.lightbox-next {
    right: 24px;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: scale(1.1);
}

.lightbox-prev:hover {
    transform: translateY(-50%) scale(1.1);
}

.lightbox-next:hover {
    transform: translateY(-50%) scale(1.1);
}

/* Clickable images cursor */
.product-image,
.tech-image,
.about-img-main {
    cursor: zoom-in;
}

/* ===== Mobile Bottom Navigation ===== */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-light);
    padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
    z-index: 999;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.06);
}

.mobile-bottom-nav a {
    text-decoration: none;
}

.mobile-bottom-nav {
    display: none;
}

@media (max-width: 768px) {
    .mobile-bottom-nav {
        display: flex;
        justify-content: space-around;
        align-items: center;
    }

    body {
        padding-bottom: 88px;
    }
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    color: var(--text-muted);
    font-size: 11px;
    flex: 1;
}

.mobile-nav-icon {
    font-size: 22px;
    line-height: 1;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-nav-icon .icon {
    width: 22px;
    height: 22px;
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
    color: var(--primary);
}

.mobile-nav-item:hover .mobile-nav-icon,
.mobile-nav-item.active .mobile-nav-icon {
    transform: scale(1.1);
}

.mobile-nav-cta {
    color: var(--accent) !important;
}

.mobile-nav-cta .mobile-nav-icon .icon {
    width: 24px;
    height: 24px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .section {
        padding: 80px 0;
    }

    .section-title {
        font-size: 36px;
    }

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

    .services-grid,
    .advantages-grid,
    .cooperation-grid,
    .cases-grid,
    .position-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .segments-grid {
        grid-template-columns: 1fr;
        max-width: 560px;
        margin: 0 auto;
    }

    .tech-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .about-content,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    /* 单列后正文会拉满 960px，一行近 60 个汉字，限制行长提升可读性 */
    .about-intro {
        max-width: 640px;
    }

    .about-img-sub {
        right: 0;
        bottom: -40px;
    }

    .product-panel.active {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 32px;
    }

    .value-banner {
        flex-direction: column;
        text-align: center;
        padding: 40px 32px;
    }

    .value-banner-items {
        flex-direction: column;
        gap: 20px;
    }

    .hero-title {
        font-size: 48px;
    }

    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #ffffff;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        gap: 4px;
    }

    .nav-menu.open .nav-link {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 46px;
        font-size: 15px;
    }

    .navbar:has(.nav-menu.open) {
        background: #ffffff;
        box-shadow: var(--shadow-sm);
    }

    .navbar:has(.nav-menu.open) .logo-cn,
    .navbar:has(.nav-menu.open) .logo-en {
        color: var(--text-primary);
    }

    .navbar:has(.nav-menu.open) .nav-toggle span {
        background: var(--text-primary);
    }

    .navbar .nav-link {
        color: var(--text-secondary);
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* 平板 2 列下 3 张案例卡会落单，让第 3 张居中，避免右侧空白 */
@media (min-width: 769px) and (max-width: 1024px) {
    .cases-grid > .case-card:last-child:nth-child(odd) {
        grid-column: 1 / -1;
        max-width: calc(50% - 12px);
        justify-self: center;
    }
}

@media (max-width: 768px) {
    .container,
    .nav-container {
        padding: 0 20px;
    }

    .section {
        padding: 52px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 15px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    /* 首屏优先展示 CTA：内容顶部对齐，按钮排到统计/标签之前 */
    .hero {
        align-items: flex-start;
        padding: 96px 0 72px;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
        padding: 0 20px;
    }

    .hero-badge {
        order: 1;
        margin-bottom: 20px;
    }

    .hero-title {
        order: 2;
    }

    .hero-subtitle {
        order: 3;
        margin-bottom: 26px;
    }

    .hero-cta {
        order: 4;
        width: 100%;
    }

    .hero-stats {
        order: 5;
        margin-top: 40px;
        margin-bottom: 0;
    }

    .hero-badges {
        order: 6;
        margin-top: 28px;
        margin-bottom: 0;
    }

    .hero-scroll {
        display: none;
    }

    /* iOS Safari 对 <16px 的输入框会自动放大页面 */
    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 16px;
    }

    .qr-box {
        gap: 14px;
        padding: 16px;
    }

    .qr-img {
        width: 132px;
        height: 132px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
        justify-content: center;
    }

    .stat-divider {
        display: none;
    }

    .stat-item {
        padding: 0 16px;
        flex: 0 0 calc(50% - 24px);
    }

    .stat-number {
        font-size: 36px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }

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

    .services-grid,
    .advantages-grid,
    .cooperation-grid,
    .cases-grid,
    .position-cards {
        grid-template-columns: 1fr;
    }

    .about-img-main img {
        height: 320px;
    }

    .about-img-sub {
        position: static;
        flex-direction: row;
        margin-top: 20px;
        gap: 12px;
    }

    .sub-card {
        flex: 1;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 6px;
        padding: 14px 10px;
    }

    .sub-card h3 {
        white-space: nowrap;
    }

    .sub-card p {
        white-space: nowrap;
    }

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

    /* 8 个分类在 375px 下会折成 3 行，改为横向滑动单行 */
    .product-tabs {
        flex-wrap: nowrap;
        justify-content: flex-start;
        gap: 8px;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        margin: 0 -20px 32px;
        padding: 4px 20px 10px;
    }

    .product-tabs::-webkit-scrollbar {
        display: none;
    }

    .product-tab {
        flex: 0 0 auto;
        padding: 12px 18px;
        font-size: 13px;
        white-space: nowrap;
    }

    .product-panel.active {
        padding: 24px;
    }

    .product-image img {
        height: 260px;
    }

    .product-name {
        font-size: 24px;
    }

    .product-value {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .value-number {
        font-size: 18px;
    }

    .value-label {
        font-size: 11px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .contact-form-card {
        padding: 32px 24px;
    }

    .vision-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        max-width: 280px;
    }

    .vision-title {
        font-size: 32px;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

    .vision-title,
    .contact-title {
        font-size: 28px;
    }

    .trust-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .trust-item {
        padding: 10px 12px;
    }

    .trust-icon {
        font-size: 22px;
    }

    .trust-icon .icon {
        width: 22px;
        height: 22px;
    }

    .qr-box {
        flex-direction: column;
        align-items: flex-start;
    }

    .trust-text h3 {
        font-size: 13px;
    }

    .trust-text p {
        font-size: 11px;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .value-banner {
        padding: 32px 24px;
    }

    .value-banner-content h2 {
        font-size: 22px;
    }

    .product-value {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .clients-logos {
        gap: 10px;
    }

    .clients-logos .client-logo {
        flex: 0 0 calc(50% - 5px);
        padding: 12px;
        gap: 9px;
    }

    .client-mark {
        width: 32px;
        height: 32px;
        font-size: 16px;
        border-radius: 8px;
    }

    .client-logo-text {
        font-size: 14px;
    }

    .client-logo-type {
        font-size: 11px;
    }
}

/* Extra small screens */
@media (max-width: 360px) {
    .container {
        padding: 0 16px;
    }

    .section {
        padding: 44px 0;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-subtitle {
        font-size: var(--fs-base);
    }

    .section-title {
        font-size: 22px;
    }

    .section-subtitle {
        font-size: var(--fs-base);
    }

    .hero-stats {
        gap: 16px;
    }

    .stat-number {
        font-size: 28px;
    }

    .btn {
        padding: 12px 24px;
        font-size: var(--fs-sm);
    }

    .mobile-nav-item {
        padding: 4px 8px;
        font-size: 10px;
    }

    .mobile-nav-icon {
        font-size: 20px;
    }
}

/* ===== 键盘可访问性：焦点环 ===== */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 2px;
}

.nav :focus-visible,
.footer :focus-visible {
    outline-color: var(--primary-light);
}

/* ===== 转化优化：客户案例卡 ===== */
.case-badge {
    display: inline-block;
    padding: 4px 14px;
    background: var(--bg-tertiary);
    border-radius: 50px;
    font-size: 12px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 14px;
}

.case-pain {
    font-size: 13px;
    color: var(--text-muted);
    padding: 10px 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    margin-bottom: 8px;
}

.case-result {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 10px 12px;
    background: rgba(45, 106, 79, 0.08);
    border-left: 3px solid var(--primary-light);
    border-radius: 0 8px 8px 0;
    margin-bottom: 12px;
}

.case-quote {
    font-size: 13px;
    color: var(--primary-dark);
    font-weight: 500;
    padding-top: 10px;
    border-top: 1px dashed var(--border);
}

.case-quote::before {
    content: '"';
    color: var(--accent);
    font-size: 18px;
    margin-right: 4px;
}

.case-link {
    display: inline-flex;
    align-items: center;
    margin-top: 10px;
    min-height: 44px;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary);
    transition: color 0.2s ease, gap 0.2s ease;
}

.case-link:hover {
    color: #b8860b;
}

.case-card h3 {
    font-size: 16px;
    margin-bottom: 12px;
}

.case-note {
    margin-top: 24px;
    text-align: center;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== 转化优化：老板视角收益行 ===== */
.product-benefit {
    margin: 14px 0 0;
    padding: 12px 16px;
    background: linear-gradient(135deg, rgba(212, 168, 83, 0.1), rgba(212, 168, 83, 0.02));
    border-left: 3px solid var(--accent);
    border-radius: 0 8px 8px 0;
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.7;
}

.benefit-tag {
    display: inline-block;
    padding: 1px 8px;
    background: var(--accent);
    color: #ffffff;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    margin-right: 8px;
    vertical-align: 1px;
}

/* ===== 转化优化：表单三步预期 ===== */
.form-steps {
    display: flex;
    gap: 6px;
    margin: 0 0 18px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 10px;
}

.form-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.step-num {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

/* ===== 转化优化：微信二维码位 ===== */
.qr-box {
    margin-top: 28px;
    padding: 18px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 14px;
    display: flex;
    gap: 16px;
    align-items: center;
}

.qr-img {
    width: 108px;
    height: 108px;
    flex-shrink: 0;
    border-radius: 10px;
    border: 1px solid var(--border);
    object-fit: cover;
    padding: 6px;
    background: #ffffff;
    box-sizing: content-box;
}

.qr-text h3 {
    font-size: 16px;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.qr-text p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}

.qr-hint {
    display: none;
}

/* 移动端：二维码保持可扫尺寸，并提示长按保存后识别 */
@media (max-width: 768px) {
    .qr-img {
        width: 132px;
        height: 132px;
    }

    .qr-hint {
        display: block;
        margin-top: 8px;
        font-size: 12px;
        color: var(--text-secondary);
        line-height: 1.65;
    }
}

/* ===== 转化优化：承诺条 ===== */
.promise-bar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 960px;
    margin: 0 auto 32px;
    padding: 28px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.promise-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.promise-icon {
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
}

.promise-item h3 {
    font-size: 15px;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.promise-item p {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0;
}

@media (max-width: 768px) {
    .promise-bar {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 20px;
    }
    .form-steps {
        flex-direction: column;
        gap: 10px;
    }
    .form-step {
        flex-direction: row;
        text-align: left;
    }
    .qr-box {
        flex-direction: column;
        text-align: center;
    }
}

/* ===== 转化引导：咨询按钮触发表单卡脉冲高亮 ===== */
@keyframes formPulse {
    0%, 100% {
        box-shadow: var(--shadow-2xl);
    }
    35% {
        box-shadow: 0 0 0 5px rgba(212, 168, 83, 0.4), var(--shadow-2xl);
    }
}

.contact-form-card.highlight-pulse {
    animation: formPulse 1.3s ease;
}

/* ===== 加载体验：懒加载图骨架屏 ===== */
.tech-image,
.product-image,
.about-img-main,
.vision-bg-image,
.sub-image {
    background: linear-gradient(110deg, var(--bg-tertiary) 30%, #e7ede9 50%, var(--bg-tertiary) 70%);
    background-size: 200% 100%;
    animation: shimmer 1.6s linear infinite;
}

@keyframes shimmer {
    to {
        background-position: -200% 0;
    }
}

.tech-image:has(img.loaded),
.product-image:has(img.loaded),
.about-img-main:has(img.loaded),
.vision-bg-image:has(img.loaded),
.sub-image:has(img.loaded) {
    animation: none;
}

/* ===== FAQ 常见问题 ===== */
.faq-section {
    background: var(--bg-secondary);
}

.faq-list {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-item[open] {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}

.faq-item summary {
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    position: relative;
    padding-right: 52px;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 22px;
    font-weight: 400;
    color: var(--accent);
    transition: transform 0.25s ease;
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-answer {
    padding: 0 24px 20px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}

.faq-answer p {
    margin: 0;
    border-top: 1px dashed var(--border);
    padding-top: 16px;
}

/* ===== 产品子页 ===== */
.sub-hero {
    padding: 120px 0 40px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
}

.sub-hero-title {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 42px);
    color: var(--text-primary);
    margin: 12px 0 8px;
}

.sub-hero-sub {
    color: var(--text-muted);
    font-size: 15px;
}

.breadcrumb {
    font-size: 14px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--primary-light);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb em {
    font-style: normal;
    color: var(--text-primary);
}

.sub-section {
    padding: 56px 0 72px;
}

.sub-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
    margin-bottom: 40px;
}

.sub-image {
    position: relative;
}

.sub-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    object-fit: cover;
}

.sub-info h2 {
    font-family: var(--font-serif);
    font-size: 22px;
    margin: 0 0 16px;
}

.sub-features {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.sub-features li {
    padding: 10px 14px 10px 30px;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    position: relative;
}

.sub-features li::before {
    content: '✓';
    position: absolute;
    left: 12px;
    color: var(--accent);
    font-weight: 700;
}

.sub-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.sub-value-item {
    background: var(--bg-tertiary);
    border-radius: 10px;
    padding: 14px;
    text-align: center;
}

.sub-value-item .v-num {
    display: block;
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
}

.sub-value-item .v-label {
    font-size: 12px;
    color: var(--text-muted);
}

.sub-desc {
    background: var(--bg-secondary);
    border-left: 4px solid var(--accent);
    padding: 20px 24px;
    border-radius: 0 10px 10px 0;
    color: var(--text-secondary);
    line-height: 1.9;
    font-size: 15px;
}

.sub-nav-links {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.sub-nav-links a {
    color: var(--primary-light);
    text-decoration: none;
    font-size: 15px;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: background 0.25s ease;
}

.sub-nav-links a:hover {
    background: var(--bg-tertiary);
}

.product-cta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 28px;
}

/* 价值数据来源注释（广告合规：标明数据性质） */
.product-value {
    position: relative;
}

/* 蜜罐字段：视觉隐藏但留在 DOM 中 */
.hp-field {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.product-value::after {
    content: '* 数据为典型客户场景参考，实际效果以项目实施为准';
    display: block;
    margin-top: 14px;
    font-size: 11px;
    color: var(--text-muted);
    text-align: left;
}

.sub-values::after {
    content: '* 数据为典型客户场景参考，实际效果以项目实施为准';
    display: block;
    margin-top: 12px;
    font-size: 11px;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .sub-hero {
        padding-top: 90px;
    }
    .sub-detail {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .sub-features {
        grid-template-columns: 1fr;
    }
}

/* 首屏较矮或平板宽度时隐藏滚动提示，避免与 CTA 重叠 */
@media (max-width: 1024px), (max-height: 820px) {
    .hero-scroll {
        display: none;
    }
}

/* ===== SEO 内容区：产品页 / 案例 / 文章共用 ===== */
.sub-content {
    margin-top: 48px;
}

.sub-block {
    margin-top: 48px;
}

.sub-block:first-child {
    margin-top: 0;
}

.sub-block h2 {
    font-family: var(--font-serif);
    font-size: 26px;
    line-height: 1.35;
    color: var(--text-primary);
    margin: 0 0 18px;
}

.sub-block h3 {
    font-size: 16px;
    color: var(--text-primary);
    margin: 0 0 8px;
}

.sub-block p {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-secondary);
    margin: 0 0 12px;
}

.sub-block p:last-child {
    margin-bottom: 0;
}

.sub-pain-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.sub-pain-list li {
    position: relative;
    padding: 14px 16px 14px 44px;
    background: var(--bg-secondary);
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
}

.sub-pain-list li::before {
    content: '!';
    position: absolute;
    left: 16px;
    top: 15px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: rgba(212, 168, 83, 0.18);
    color: #8a6518;
    font-size: 12px;
    font-weight: 700;
    line-height: 18px;
    text-align: center;
}

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

.sub-module {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px 20px;
}

.sub-module h3 {
    margin-bottom: 6px;
}

.sub-module p {
    font-size: 14px;
    line-height: 1.75;
    margin: 0;
}

.sub-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: sub-step;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.sub-step {
    position: relative;
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 18px;
}

.sub-step::before {
    counter-increment: sub-step;
    content: counter(sub-step, decimal-leading-zero);
    display: block;
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
}

.sub-step h3 {
    font-size: 15px;
}

.sub-step p {
    margin: 0;
    font-size: 13px;
    line-height: 1.7;
}

.sub-related {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.sub-related a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--primary-light);
    font-size: 14px;
    text-decoration: none;
    transition: background 0.25s ease, border-color 0.25s ease;
}

.sub-related a:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-light);
}

.sub-faq {
    max-width: none;
}


.sub-list {
    margin: 0;
    padding-left: 22px;
    color: var(--text-secondary);
}

.sub-list li {
    font-size: 15px;
    line-height: 1.9;
    margin-bottom: 8px;
}

.sub-list li::marker {
    color: var(--accent);
}

/* 案例详情 */
.case-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin: 8px 0 4px;
}

.case-metric {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.case-metric strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 26px;
    color: var(--primary);
    line-height: 1.3;
}

.case-metric span {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-muted);
}

.case-quote-block {
    margin: 0;
    padding: 24px 28px;
    background: var(--bg-secondary);
    border-left: 4px solid var(--accent);
    border-radius: 0 12px 12px 0;
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-primary);
}

.case-disclaimer {
    margin: 20px 0 0;
    padding: 14px 18px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-muted);
}

.author-box {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin: 36px 0 8px;
    padding: 20px 22px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.author-avatar {
    flex: 0 0 auto;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary);
    color: #ffffff;
    font-family: var(--font-serif);
    font-size: 18px;
}

.author-info strong {
    display: block;
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.author-info p {
    margin: 0;
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-muted);
}

.author-info a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.privacy-body h2 {
    font-size: 21px;
}

.privacy-body p {
    margin-bottom: 12px;
}

/* 文章 / 知识库 */
.article-body {
    max-width: 820px;
    margin: 0 auto;
}

.article-body h2 {
    font-family: var(--font-serif);
    font-size: 24px;
    line-height: 1.4;
    color: var(--text-primary);
    margin: 36px 0 14px;
}

.article-body h3 {
    font-size: 17px;
    color: var(--text-primary);
    margin: 26px 0 10px;
}

.article-body p,
.article-body li {
    font-size: 15px;
    line-height: 1.95;
    color: var(--text-secondary);
}

.article-body p {
    margin: 0 0 14px;
}

.article-body ul,
.article-body ol {
    margin: 0 0 16px;
    padding-left: 22px;
    list-style: disc;
}

.article-body ol {
    list-style: decimal;
}

.article-body li::marker {
    color: var(--primary);
}

.article-body ul.sub-related {
    list-style: none;
    padding-left: 0;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body .article-lead {
    font-size: 16px;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border-left: 4px solid var(--accent);
    border-radius: 0 10px 10px 0;
    padding: 18px 22px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin-top: 10px;
    font-size: 13px;
    color: var(--text-muted);
}

.article-cta {
    margin-top: 40px;
    padding: 26px 28px;
    background: var(--bg-secondary);
    border-radius: 14px;
}

.article-cta h3 {
    margin: 0 0 8px;
    font-size: 18px;
    color: var(--text-primary);
}

.article-cta p {
    margin: 0 0 16px;
    font-size: 14px;
}

.insight-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.insight-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.insight-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.insight-card .insight-tag {
    font-size: 12px;
    letter-spacing: var(--ls-wide);
    color: var(--accent);
    margin-bottom: 10px;
}

.insight-card h3 {
    font-family: var(--font-serif);
    font-size: 19px;
    line-height: 1.5;
    color: var(--text-primary);
    margin: 0 0 10px;
}

.insight-card p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin: 0 0 16px;
}

.insight-card .insight-more {
    margin-top: auto;
    font-size: 13px;
    color: var(--primary-light);
}

@media (max-width: 1024px) {
    .insight-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sub-content {
        margin-top: 36px;
    }

    .sub-block {
        margin-top: 36px;
    }

    .sub-block h2 {
        font-size: 22px;
    }

    .sub-pain-list,
    .sub-modules {
        grid-template-columns: 1fr;
    }

    .sub-steps {
        grid-template-columns: 1fr 1fr;
    }

    .case-metrics {
        grid-template-columns: 1fr;
    }

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

    .article-body h2 {
        font-size: 21px;
    }
}

@media (max-width: 480px) {
    .sub-steps {
        grid-template-columns: 1fr;
    }
}