/* ==========================================================================
   深圳市温芯智能信息有限公司 - 企业官网主样式表
   作者: 温芯智能前端团队
   描述: 包含全局样式、布局、组件及响应式设计
   ========================================================================== */

/* ---------- 1. 全局变量与重置 ---------- */
:root {
    /* 主色调 - 科技蓝 */
    --color-primary: #0066ff;
    --color-primary-dark: #0044cc;
    --color-primary-light: #3d8bff;
    --color-accent: #00d4ff;
    --color-accent-soft: #66e8ff;

    /* 中性色 */
    --color-dark: #0a1628;
    --color-text: #1a2332;
    --color-text-soft: #4a5568;
    --color-text-muted: #8895a8;
    --color-bg: #ffffff;
    --color-bg-soft: #f5f8fc;
    --color-bg-dark: #0a1628;
    --color-border: #e2e8f0;

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #0066ff 0%, #00d4ff 100%);
    --gradient-dark: linear-gradient(135deg, #0a1628 0%, #1a2b4a 100%);
    --gradient-hero: linear-gradient(135deg, #001a3d 0%, #003566 50%, #0066ff 100%);

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.06);
    --shadow-md: 0 8px 24px rgba(10, 22, 40, 0.1);
    --shadow-lg: 0 20px 50px rgba(10, 22, 40, 0.15);
    --shadow-glow: 0 0 40px rgba(0, 102, 255, 0.3);

    /* 圆角与间距 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    /* 过渡 */
    --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);

    /* 字体 */
    --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

    /* 容器 */
    --container-max: 1200px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

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

/* ---------- 2. 通用工具类 ---------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
}

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

.section-dark {
    background: var(--gradient-dark);
    color: #ffffff;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title .eyebrow {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(0, 102, 255, 0.1);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-dark .section-title .eyebrow {
    background: rgba(0, 212, 255, 0.15);
    color: var(--color-accent);
}

.section-title h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--color-dark);
}

.section-dark .section-title h2 {
    color: #ffffff;
}

.section-title p {
    font-size: 1.05rem;
    color: var(--color-text-soft);
    max-width: 640px;
    margin: 0 auto;
}

.section-dark .section-title p {
    color: rgba(255, 255, 255, 0.7);
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(0, 102, 255, 0.45);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn-light {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-light:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.6);
}

/* ---------- 3. 头部导航 ---------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: transparent;
}

.header.scrolled {
    padding: 12px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
    transition: var(--transition);
}

.header.scrolled .logo {
    color: var(--color-dark);
}

.logo-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.logo-text {
    line-height: 1.2;
}

.logo-text small {
    display: block;
    font-size: 0.7rem;
    font-weight: 400;
    opacity: 0.7;
    letter-spacing: 1px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav a {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    position: relative;
}

.header.scrolled .nav a {
    color: var(--color-text);
}

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

.header.scrolled .nav a:hover,
.header.scrolled .nav a.active {
    color: var(--color-primary);
    background: rgba(0, 102, 255, 0.08);
}

.nav-cta {
    margin-left: 16px;
    padding: 10px 24px !important;
    background: var(--gradient-primary);
    color: #ffffff !important;
    border-radius: var(--radius-full);
    box-shadow: 0 6px 16px rgba(0, 102, 255, 0.3);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(0, 102, 255, 0.4);
    background: var(--gradient-primary) !important;
    color: #ffffff !important;
}

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #ffffff;
    border-radius: 2px;
    transition: var(--transition);
}

.header.scrolled .nav-toggle span {
    background: var(--color-dark);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 4. Hero 区域 ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(0, 102, 255, 0.2) 0%, transparent 40%);
    pointer-events: none;
}

.hero::after {
    content: "";
    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;
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-content {
    color: #ffffff;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--color-accent);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-content h1 {
    font-size: clamp(2.2rem, 5.5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-content h1 .highlight {
    background: linear-gradient(135deg, #00d4ff 0%, #66e8ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content .lead {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 36px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat .num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}

.hero-stat .label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 6px;
}

/* Hero 视觉展示 */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-orb {
    position: relative;
    width: 100%;
    max-width: 460px;
    aspect-ratio: 1;
}

.hero-orb-glow {
    position: absolute;
    inset: 10%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(40px);
    animation: float 6s ease-in-out infinite;
}

.hero-orb-ring {
    position: absolute;
    inset: 0;
    border: 2px solid rgba(0, 212, 255, 0.2);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.hero-orb-ring::before,
.hero-orb-ring::after {
    content: "";
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--color-accent);
}

.hero-orb-ring::before {
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
}

.hero-orb-ring::after {
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
}

.hero-orb-ring.r2 {
    inset: 12%;
    border-color: rgba(0, 102, 255, 0.3);
    animation: rotate 15s linear infinite reverse;
}

.hero-orb-core {
    position: absolute;
    inset: 25%;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 102, 255, 0.3));
    border: 1px solid rgba(0, 212, 255, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    animation: float 4s ease-in-out infinite;
}

.hero-orb-core svg {
    width: 60%;
    height: 60%;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: 80px;
}

/* ---------- 5. 公司简介 ---------- */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-intro-text h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--color-dark);
}

.about-intro-text p {
    color: var(--color-text-soft);
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 28px;
}

.about-feature {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.about-feature .icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 102, 255, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-primary);
}

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

.about-feature h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-dark);
}

.about-feature p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0;
}

.about-visual {
    position: relative;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-lg);
    background: var(--gradient-hero);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 30% 40%, rgba(0, 212, 255, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(0, 102, 255, 0.4) 0%, transparent 50%);
}

.about-visual-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
}

.about-visual-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    text-align: center;
    padding: 40px;
}

.about-visual-content .big-num {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
}

.about-visual-content .desc {
    color: rgba(255, 255, 255, 0.8);
    margin-top: 12px;
    font-size: 1.05rem;
}

.about-visual-stats {
    position: absolute;
    bottom: 24px;
    left: 24px;
    right: 24px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 16px;
}

.about-visual-stat {
    text-align: center;
    color: #ffffff;
}

.about-visual-stat .v {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-accent);
}

.about-visual-stat .l {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 2px;
}

/* ---------- 6. 产品展示 ---------- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.product-card {
    position: relative;
    background: #ffffff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-card-visual {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card.cushion .product-card-visual {
    background: linear-gradient(135deg, #002a5c 0%, #0066ff 100%);
}

.product-card.clothing .product-card-visual {
    background: linear-gradient(135deg, #1a0033 0%, #0044cc 100%);
}

.product-card-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(0, 212, 255, 0.3) 0%, transparent 40%);
}

.product-card-visual svg {
    position: relative;
    z-index: 2;
    width: 55%;
    max-height: 70%;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

.product-card-tag {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 3;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #ffffff;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 500;
}

.product-card-body {
    padding: 32px;
}

.product-card-body h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-dark);
}

.product-card-body p {
    color: var(--color-text-soft);
    margin-bottom: 20px;
}

.product-card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.product-card-features span {
    font-size: 0.82rem;
    color: var(--color-primary);
    background: rgba(0, 102, 255, 0.08);
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.product-link:hover {
    gap: 12px;
    color: var(--color-primary-dark);
}

.product-link svg {
    width: 16px;
    height: 16px;
    transition: var(--transition);
}

/* ---------- 7. 技术优势 ---------- */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tech-card {
    position: relative;
    padding: 36px 28px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    overflow: hidden;
}

.tech-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
}

.tech-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateY(-6px);
}

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

.tech-card .tech-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 102, 255, 0.3));
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.tech-card .tech-icon svg {
    width: 28px;
    height: 28px;
}

.tech-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
}

.tech-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.7;
}

.tech-card .tech-meta {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--color-accent);
}

/* 专利成果横条 */
.patent-banner {
    margin-top: 60px;
    padding: 40px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 102, 255, 0.15));
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: var(--radius-lg);
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 24px;
    align-items: center;
}

.patent-banner .lead {
    color: #ffffff;
}

.patent-banner .lead h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.patent-banner .lead p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.patent-stat {
    text-align: center;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    padding-left: 24px;
}

.patent-stat .num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}

.patent-stat .label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 6px;
}

/* ---------- 8. 应用案例 ---------- */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.case-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.case-card-visual {
    aspect-ratio: 16 / 10;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-card-visual.office {
    background: linear-gradient(135deg, #002a5c 0%, #0066ff 100%);
}

.case-card-visual.medical {
    background: linear-gradient(135deg, #003535 0%, #008080 100%);
}

.case-card-visual.sport {
    background: linear-gradient(135deg, #330033 0%, #660066 100%);
}

.case-card-visual.education {
    background: linear-gradient(135deg, #2a1a00 0%, #cc8800 100%);
}

.case-card-visual.elderly {
    background: linear-gradient(135deg, #001a33 0%, #004499 100%);
}

.case-card-visual.transport {
    background: linear-gradient(135deg, #1a002a 0%, #660099 100%);
}

.case-card-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.2) 0%, transparent 40%);
}

.case-card-visual svg {
    position: relative;
    z-index: 2;
    width: 45%;
    height: 60%;
    color: rgba(255, 255, 255, 0.9);
}

.case-card-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 3;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: #ffffff;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.case-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-card-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-dark);
}

.case-card-body p {
    color: var(--color-text-soft);
    font-size: 0.92rem;
    margin-bottom: 16px;
    flex: 1;
}

.case-card-quote {
    padding: 14px;
    background: var(--color-bg-soft);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
    font-size: 0.85rem;
    color: var(--color-text-soft);
    font-style: italic;
    margin-bottom: 14px;
}

.case-card-quote::before {
    content: "\201C";
    color: var(--color-primary);
    font-size: 1.2rem;
    margin-right: 4px;
}

.case-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
}

.case-card-meta .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.case-card-meta .info {
    flex: 1;
}

.case-card-meta .name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-dark);
}

.case-card-meta .role {
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

/* ---------- 9. 关于我们 / 团队 ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-block h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-block h3 .num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    color: #ffffff;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.about-block p {
    color: var(--color-text-soft);
    margin-bottom: 16px;
}

/* 发展历程时间线 */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
}

.timeline-item {
    position: relative;
    padding-bottom: 32px;
}

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

.timeline-item::before {
    content: "";
    position: absolute;
    left: -28px;
    top: 4px;
    width: 18px;
    height: 18px;
    background: #ffffff;
    border: 3px solid var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.15);
}

.timeline-year {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 6px;
}

.timeline-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 6px;
}

.timeline-desc {
    font-size: 0.9rem;
    color: var(--color-text-soft);
}

/* 团队成员 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.team-card {
    text-align: center;
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 32px 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

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

.team-avatar {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    margin: 0 auto 16px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.6rem;
    font-weight: 700;
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.25);
}

.team-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 4px;
}

.team-role {
    font-size: 0.85rem;
    color: var(--color-primary);
    margin-bottom: 10px;
    font-weight: 500;
}

.team-bio {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* 价值观 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.value-card {
    padding: 32px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.value-card .icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 212, 255, 0.15));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.value-card .icon svg {
    width: 32px;
    height: 32px;
}

.value-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-dark);
}

.value-card p {
    color: var(--color-text-soft);
    font-size: 0.92rem;
}

/* ---------- 10. 联系我们 ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info-list {
    display: grid;
    gap: 20px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.contact-item:hover {
    border-color: var(--color-primary);
    transform: translateX(4px);
}

.contact-item .icon {
    width: 44px;
    height: 44px;
    background: rgba(0, 102, 255, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

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

.contact-item h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--color-text-soft);
    font-size: 0.9rem;
    margin: 0;
}

.contact-form {
    background: #ffffff;
    padding: 36px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.contact-form h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
}

.contact-form .sub {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-bg-soft);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
}

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

.form-success {
    display: none;
    padding: 14px 18px;
    background: rgba(0, 170, 100, 0.1);
    border: 1px solid rgba(0, 170, 100, 0.3);
    border-radius: var(--radius-sm);
    color: #006640;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

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

/* 地图 */
.map-embed {
    margin-top: 24px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.map-embed iframe {
    width: 100%;
    height: 280px;
    border: 0;
    display: block;
}

/* ---------- 11. 产品详情页 ---------- */
.product-hero {
    padding: 160px 0 80px;
    background: var(--gradient-hero);
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.product-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(0, 102, 255, 0.25) 0%, transparent 40%);
}

.product-hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-hero-content .breadcrumb {
    display: flex;
    gap: 8px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.product-hero-content .breadcrumb a:hover {
    color: var(--color-accent);
}

.product-hero-content .breadcrumb .sep {
    opacity: 0.5;
}

.product-hero-content h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
}

.product-hero-content .lead {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 28px;
}

.product-hero-stats {
    display: flex;
    gap: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.product-hero-stats .stat .v {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-accent);
}

.product-hero-stats .stat .l {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 4px;
}

.product-hero-visual {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-hero-visual .glow {
    position: absolute;
    inset: 15%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.5) 0%, transparent 70%);
    filter: blur(40px);
    animation: float 5s ease-in-out infinite;
}

.product-hero-visual svg {
    position: relative;
    z-index: 2;
    width: 75%;
    filter: drop-shadow(0 20px 50px rgba(0, 0, 0, 0.4));
}

/* 产品详情模块 */
.product-section {
    padding: 80px 0;
}

.product-section.alt {
    background: var(--color-bg-soft);
}

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

.product-detail.reverse .product-detail-visual {
    order: -1;
}

.product-detail-content h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.product-detail-content > p {
    color: var(--color-text-soft);
    margin-bottom: 24px;
    font-size: 1.02rem;
}

.product-detail-visual {
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.product-detail-visual.cushion {
    background: linear-gradient(135deg, #002a5c 0%, #0066ff 100%);
}

.product-detail-visual.clothing {
    background: linear-gradient(135deg, #1a0033 0%, #0044cc 100%);
}

.product-detail-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(0, 212, 255, 0.3) 0%, transparent 50%);
}

.product-detail-visual svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    padding: 15%;
}

/* 功能列表 */
.feature-list {
    display: grid;
    gap: 14px;
    margin-bottom: 24px;
}

.feature-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    color: var(--color-text);
    font-size: 0.98rem;
}

.feature-list li .check {
    width: 22px;
    height: 22px;
    background: rgba(0, 170, 100, 0.12);
    color: #008855;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.feature-list li .check svg {
    width: 14px;
    height: 14px;
}

.feature-list li strong {
    color: var(--color-dark);
    font-weight: 600;
}

/* 技术参数表 */
.spec-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.spec-table th,
.spec-table td {
    padding: 16px 24px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.spec-table th {
    background: var(--color-bg-soft);
    font-weight: 600;
    color: var(--color-dark);
    width: 35%;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
    border-bottom: none;
}

.spec-table td {
    color: var(--color-text-soft);
}

/* 适用场景 */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.scenario-card {
    text-align: center;
    padding: 28px 16px;
    background: #ffffff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.scenario-card .icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 212, 255, 0.15));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.scenario-card .icon svg {
    width: 28px;
    height: 28px;
}

.scenario-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 6px;
}

.scenario-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* ---------- 12. CTA 区域 ---------- */
.cta-section {
    padding: 80px 0;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 50%, rgba(0, 102, 255, 0.25) 0%, transparent 40%);
}

.cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #ffffff;
    max-width: 720px;
    margin: 0 auto;
}

.cta-inner h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-inner p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.05rem;
    margin-bottom: 32px;
}

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

/* ---------- 13. 页脚 ---------- */
.footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
    color: #ffffff;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 320px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    color: #ffffff;
    transform: translateY(-3px);
}

.footer-social a svg {
    width: 18px;
    height: 18px;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 18px;
}

.footer-col ul {
    display: grid;
    gap: 10px;
}

.footer-col ul a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-contact-item {
    display: flex;
    gap: 10px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 12px;
}

.footer-contact-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-accent);
    margin-top: 2px;
}

.footer-bottom {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.85rem;
}

.footer-bottom .icp {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-bottom .icp a {
    color: rgba(255, 255, 255, 0.6);
}

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

.footer-bottom .copyright {
    color: rgba(255, 255, 255, 0.5);
}

/* ---------- 14. 回到顶部按钮 ---------- */
.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.4);
    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);
}

.back-to-top svg {
    width: 22px;
    height: 22px;
}

/* ---------- 15. 滚动动画 ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

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

/* ---------- 16. 响应式设计 ---------- */
@media (max-width: 1024px) {
    .section { padding: 80px 0; }

    .hero-inner,
    .about-intro,
    .product-hero-inner,
    .product-detail,
    .contact-grid,
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-detail.reverse .product-detail-visual {
        order: 0;
    }

    .hero-visual {
        order: -1;
        max-width: 360px;
        margin: 0 auto;
    }

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

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

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

    .patent-banner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .section { padding: 60px 0; }

    /* 移动端导航 */
    .nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: rgba(10, 22, 40, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        padding: 40px;
        gap: 16px;
        transform: translateX(100%);
        transition: var(--transition);
        z-index: 999;
    }

    .nav.open {
        transform: translateX(0);
    }

    .nav a {
        color: #ffffff !important;
        font-size: 1.1rem;
        width: 100%;
        padding: 12px 0;
    }

    .header.scrolled .nav a {
        color: #ffffff !important;
    }

    .nav-cta {
        margin-left: 0;
        margin-top: 12px;
        text-align: center;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
        position: relative;
    }

    .hero { min-height: auto; padding: 120px 0 80px; }
    .hero-stats { grid-template-columns: 1fr; gap: 16px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { width: 100%; }

    .products-grid,
    .tech-grid,
    .cases-grid,
    .team-grid,
    .scenarios-grid,
    .values-grid,
    .about-features {
        grid-template-columns: 1fr;
    }

    .patent-banner {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .patent-stat {
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding-left: 0;
        padding-top: 16px;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .section-title { margin-bottom: 40px; }
    .product-card-body,
    .contact-form { padding: 24px 20px; }
    .hero-stat .num { font-size: 1.6rem; }
    .btn { padding: 12px 24px; font-size: 0.95rem; }
}

/* ---------- 17. 打印样式 ---------- */
@media print {
    .header,
    .footer,
    .back-to-top,
    .hero-wave,
    .nav-toggle {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }

    .section {
        padding: 20px 0;
        page-break-inside: avoid;
    }
}