/* ==========================================================================
   天津江恒纸塑制品有限公司 - 企业官网样式
   风格：简约大气
   ========================================================================== */

/* ---------- CSS 变量 ---------- */
:root {
    --color-primary: #1e3a5f;
    --color-primary-dark: #15283f;
    --color-primary-light: #2c5478;
    --color-accent: #c9a961;
    --color-accent-light: #e0c896;
    --color-accent-dark: #a8893f;
    --color-bg: #ffffff;
    --color-bg-light: #f7f8fa;
    --color-bg-soft: #fafbfc;
    --color-text: #1a1a1a;
    --color-text-body: #4a4a4a;
    --color-text-muted: #8a8a8a;
    --color-border: #e8e8e8;
    --color-border-light: #f0f0f0;
    --color-white: #ffffff;

    --shadow-sm: 0 2px 8px rgba(30, 58, 95, 0.06);
    --shadow-md: 0 8px 24px rgba(30, 58, 95, 0.08);
    --shadow-lg: 0 16px 48px rgba(30, 58, 95, 0.12);
    --shadow-accent: 0 8px 24px rgba(201, 169, 97, 0.25);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;

    --container-width: 1200px;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Hiragino Sans GB", Arial, sans-serif;
    --font-serif: "Songti SC", "SimSun", "STSong", serif;
}

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

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

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

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

ul, ol {
    list-style: none;
}

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

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

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

.section {
    padding: 96px 0;
}

.section-sm {
    padding: 64px 0;
}

/* ---------- 排版 ---------- */
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.section-header .eyebrow {
    display: inline-block;
    font-size: 0.8125rem;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.25rem;
    color: var(--color-text);
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 20px;
    line-height: 1.3;
}

.section-header p {
    font-size: 1.0625rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

.section-header .divider {
    width: 48px;
    height: 3px;
    background: var(--color-accent);
    margin: 0 auto 24px;
    border-radius: 2px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-white);
}

.btn-accent:hover {
    background: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

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

.btn-outline-dark:hover {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1rem;
}

.btn-sm {
    padding: 9px 20px;
    font-size: 0.875rem;
}

/* ==========================================================================
   导航栏
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
}

.logo-icon {
    height: 60px;
    width: auto;
    display: block;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.logo-name {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.02em;
}

.logo-sub {
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    letter-spacing: 0.3em;
    margin-top: 3px;
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-menu a {
    padding: 10px 20px;
    font-size: 0.9375rem;
    color: var(--color-text-body);
    font-weight: 500;
    position: relative;
    transition: var(--transition-fast);
}

.nav-menu a::after {
    content: "";
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--color-primary);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 24px;
}

.nav-menu a.active {
    color: var(--color-primary);
    font-weight: 600;
}

.nav-cta {
    margin-left: 16px;
    padding: 10px 24px !important;
}

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

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
    border-radius: 2px;
}

.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);
}

/* ==========================================================================
   首页 - Hero
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #15283f 0%, #1e3a5f 50%, #2c5478 100%);
    overflow: hidden;
    padding-top: 76px;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(201, 169, 97, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(201, 169, 97, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

/* 装饰性几何图形 */
.hero-decoration {
    position: absolute;
    pointer-events: none;
    opacity: 0.1;
}

.hero-decoration.deco-1 {
    top: 10%;
    right: 5%;
    width: 400px;
    height: 400px;
    border: 1px solid var(--color-accent);
    border-radius: 50%;
}

.hero-decoration.deco-2 {
    bottom: -100px;
    left: -100px;
    width: 500px;
    height: 500px;
    border: 1px solid var(--color-accent);
    border-radius: 50%;
}

.hero-decoration.deco-3 {
    top: 50%;
    right: 15%;
    width: 200px;
    height: 200px;
    border: 1px solid rgba(201, 169, 97, 0.3);
    transform: rotate(45deg);
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
}

.hero-content {
    color: var(--color-white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(201, 169, 97, 0.15);
    border: 1px solid rgba(201, 169, 97, 0.3);
    border-radius: 50px;
    font-size: 0.8125rem;
    color: var(--color-accent-light);
    margin-bottom: 32px;
    letter-spacing: 0.05em;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.02em;
    margin-bottom: 24px;
}

.hero h1 .accent {
    color: var(--color-accent);
}

.hero-tagline {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 16px;
    font-weight: 300;
}

/* 品牌 slogan（参考 logo 与 banner 图：持之以恒 + 数码印刷·数码增效） */
.hero-slogan {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding: 10px 0;
}

.hero-slogan .slogan-main {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.4em;
    color: var(--color-accent);
    line-height: 1;
}

.hero-slogan .slogan-sub {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.05em;
    padding-left: 16px;
    border-left: 1px solid rgba(255, 255, 255, 0.18);
    line-height: 1.3;
}

.hero-desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 520px;
}

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

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 64px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-stat .num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
}

.hero-stat .label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 8px;
}

/* Hero 视觉区域 - 标签展示 */
.hero-visual {
    position: relative;
    height: 480px;
}

.hero-label-card {
    position: absolute;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: var(--transition);
}

.hero-label-card.card-1 {
    top: 0;
    left: 20px;
    width: 220px;
    height: 280px;
    transform: rotate(-6deg);
    animation: float1 6s ease-in-out infinite;
}

.hero-label-card.card-2 {
    top: 80px;
    right: 0;
    width: 200px;
    height: 240px;
    transform: rotate(4deg);
    animation: float2 7s ease-in-out infinite;
    z-index: 2;
}

.hero-label-card.card-3 {
    bottom: 0;
    left: 80px;
    width: 180px;
    height: 160px;
    transform: rotate(-3deg);
    animation: float3 5s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: rotate(-6deg) translateY(0); }
    50% { transform: rotate(-6deg) translateY(-16px); }
}

@keyframes float2 {
    0%, 100% { transform: rotate(4deg) translateY(0); }
    50% { transform: rotate(4deg) translateY(-12px); }
}

@keyframes float3 {
    0%, 100% { transform: rotate(-3deg) translateY(0); }
    50% { transform: rotate(-3deg) translateY(-8px); }
}

.label-card-inner {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    text-align: center;
}

.label-card-inner .icon {
    width: 56px;
    height: 56px;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.label-card-inner .title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.label-card-inner .desc {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   主营业务板块
   ========================================================================== */
.business-section {
    background: var(--color-bg-light);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.business-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 48px 36px;
    transition: var(--transition);
    border: 1px solid var(--color-border-light);
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

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

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

.business-card .icon-wrap {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.08), rgba(201, 169, 97, 0.08));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    color: var(--color-primary);
    transition: var(--transition);
}

.business-card:hover .icon-wrap {
    background: var(--color-primary);
    color: var(--color-accent);
}

.business-card .icon-wrap svg {
    width: 36px;
    height: 36px;
}

.business-card h3 {
    font-size: 1.375rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 16px;
}

.business-card p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
}

.business-card .features {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.business-card .features li {
    font-size: 0.875rem;
    color: var(--color-text-body);
    display: flex;
    align-items: center;
    gap: 10px;
}

.business-card .features li::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    flex-shrink: 0;
}

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

.advantage-item {
    text-align: center;
    padding: 40px 24px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.advantage-item:hover {
    background: var(--color-bg-light);
    transform: translateY(-4px);
}

.advantage-item .num {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.9;
}

.advantage-item h4 {
    font-size: 1.125rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 12px;
}

.advantage-item p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ==========================================================================
   应用领域
   ========================================================================== */
.applications-section {
    background: var(--color-primary);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.applications-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(201, 169, 97, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(201, 169, 97, 0.08) 0%, transparent 40%);
}

.applications-section .section-header h2 {
    color: var(--color-white);
}

.applications-section .section-header p {
    color: rgba(255, 255, 255, 0.65);
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 2;
}

.app-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(4px);
}

.app-card:hover {
    background: rgba(201, 169, 97, 0.12);
    border-color: var(--color-accent);
    transform: translateY(-6px);
}

.app-card .icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    color: var(--color-accent);
}

.app-card h4 {
    font-size: 1.0625rem;
    color: var(--color-white);
    font-weight: 600;
    margin-bottom: 8px;
}

.app-card p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ==========================================================================
   CTA 区域
   ========================================================================== */
.cta-section {
    background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-bg-soft) 100%);
    text-align: center;
    padding: 96px 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: 80px 48px;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(201, 169, 97, 0.15) 0%, transparent 70%);
}

.cta-box h2 {
    font-size: 2.25rem;
    color: var(--color-white);
    font-weight: 600;
    margin-bottom: 16px;
    position: relative;
}

.cta-box p {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 36px;
    position: relative;
}

.cta-box .btn {
    position: relative;
}

/* ==========================================================================
   关于我们页面
   ========================================================================== */
.page-hero {
    background: linear-gradient(135deg, #15283f 0%, #1e3a5f 100%);
    color: var(--color-white);
    padding: 180px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 30% 50%, rgba(201, 169, 97, 0.12) 0%, transparent 50%);
}

.page-hero .container {
    position: relative;
    z-index: 2;
}

.page-hero .breadcrumb {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 24px;
    letter-spacing: 0.05em;
}

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

.page-hero .breadcrumb span {
    margin: 0 8px;
    color: rgba(255, 255, 255, 0.3);
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.page-hero .subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 300;
}

/* 公司简介 */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-intro-text .eyebrow {
    display: inline-block;
    font-size: 0.8125rem;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.about-intro-text h2 {
    font-size: 2.25rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 24px;
    line-height: 1.3;
}

.about-intro-text p {
    font-size: 1rem;
    color: var(--color-text-body);
    line-height: 1.9;
    margin-bottom: 20px;
}

.about-intro-text .divider {
    width: 48px;
    height: 3px;
    background: var(--color-accent);
    margin-bottom: 24px;
    border-radius: 2px;
}

.about-intro-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.about-intro-visual .visual-content {
    text-align: center;
    color: var(--color-white);
    padding: 48px;
}

.about-intro-visual .visual-content .big-num {
    font-size: 5rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 16px;
}

.about-intro-visual .visual-content .label {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

.about-intro-visual .visual-stats {
    display: flex;
    gap: 32px;
    justify-content: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.about-intro-visual .visual-stat .num {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent);
}

.about-intro-visual .visual-stat .desc {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 4px;
}

/* 发展历程 */
.history-section {
    background: var(--color-bg-light);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-accent), var(--color-border));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 0 48px 48px 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding: 0 0 48px 48px;
    text-align: left;
}

.timeline-item::before {
    content: "";
    position: absolute;
    top: 8px;
    right: -8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-white);
    border: 3px solid var(--color-accent);
    z-index: 2;
}

.timeline-item:nth-child(even)::before {
    right: auto;
    left: -8px;
}

.timeline-item .year {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.timeline-item h4 {
    font-size: 1.125rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-item p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* 企业文化/价值观 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.value-card {
    text-align: center;
    padding: 48px 32px;
    border-radius: var(--radius-lg);
    background: var(--color-bg-light);
    transition: var(--transition);
}

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

.value-card .icon-wrap {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
}

.value-card .icon-wrap svg {
    width: 36px;
    height: 36px;
}

.value-card h3 {
    font-size: 1.25rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 12px;
}

.value-card p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* ==========================================================================
   产品服务页面
   ========================================================================== */
.products-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.products-intro p {
    font-size: 1.0625rem;
    color: var(--color-text-muted);
    line-height: 1.9;
}

/* 产品分类 */
.product-category {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-bottom: 96px;
}

.product-category:nth-child(even) .product-category-visual {
    order: -1;
}

.product-category-text .category-num {
    font-size: 0.875rem;
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 0.2em;
    margin-bottom: 12px;
}

.product-category-text h3 {
    font-size: 1.875rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 20px;
}

.product-category-text > p {
    font-size: 1rem;
    color: var(--color-text-body);
    line-height: 1.9;
    margin-bottom: 28px;
}

.product-features-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 32px;
}

.product-features-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.9375rem;
    color: var(--color-text-body);
}

.product-features-list li .check {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-accent);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.75rem;
    margin-top: 2px;
}

.product-category-visual {
    border-radius: var(--radius-lg);
    aspect-ratio: 5/4;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.product-category-visual.bg-blue {
    background: linear-gradient(135deg, #1e3a5f, #2c5478);
}

.product-category-visual.bg-gold {
    background: linear-gradient(135deg, #c9a961, #e0c896);
}

.product-category-visual.bg-navy {
    background: linear-gradient(135deg, #15283f, #1e3a5f);
}

.product-category-visual .visual-icon {
    color: rgba(255, 255, 255, 0.9);
}

.product-category-visual .visual-icon svg {
    width: 120px;
    height: 120px;
}

.product-category-visual .visual-label {
    position: absolute;
    bottom: 24px;
    left: 24px;
    color: var(--color-white);
    font-size: 1.125rem;
    font-weight: 600;
}

/* 定制流程 */
.process-section {
    background: var(--color-bg-light);
}

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

.process-steps::before {
    content: "";
    position: absolute;
    top: 40px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: var(--color-border);
    z-index: 0;
}

.process-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.process-step .step-num {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: var(--color-white);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    transition: var(--transition);
    position: relative;
}

.process-step:hover .step-num {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-accent);
    transform: scale(1.05);
}

.process-step .step-num::after {
    content: "";
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 2px solid var(--color-accent);
    opacity: 0;
    transition: var(--transition);
}

.process-step:hover .step-num::after {
    opacity: 0.3;
}

.process-step h4 {
    font-size: 1.125rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    padding: 0 12px;
}

/* ==========================================================================
   数码印刷工艺流程
   ========================================================================== */
.craft-flow {
    display: grid;
    grid-template-columns: repeat(11, 1fr);
    align-items: stretch;
    gap: 0;
    margin-bottom: 48px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(30, 58, 95, 0.06);
}

.craft-step {
    grid-column: span 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 12px 10px;
    transition: transform 0.3s ease;
}

.craft-step:hover {
    transform: translateY(-4px);
}

.craft-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    box-shadow: 0 6px 20px rgba(30, 58, 95, 0.18);
}

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

.craft-num {
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 4px;
}

.craft-step h4 {
    font-size: 1.0625rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.craft-step p {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    max-width: 180px;
}

.craft-arrow {
    grid-column: span 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    opacity: 0.45;
}

.craft-arrow svg {
    width: 22px;
    height: 22px;
}

.craft-footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 8px;
}

.badge-item {
    display: inline-block;
    padding: 8px 20px;
    background: var(--color-white);
    border: 1px solid rgba(30, 58, 95, 0.12);
    border-radius: 999px;
    font-size: 0.875rem;
    color: var(--color-text);
    letter-spacing: 0.05em;
    font-weight: 500;
    box-shadow: var(--shadow-xs);
}

.badge-item.highlight {
    background: var(--color-primary);
    color: var(--color-accent);
    border-color: var(--color-primary);
    font-weight: 600;
    letter-spacing: 0.15em;
}

/* 规格表 */
.spec-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.spec-table th,
.spec-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}

.spec-table th {
    background: var(--color-primary);
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.9375rem;
}

.spec-table td {
    font-size: 0.9375rem;
    color: var(--color-text-body);
}

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

.spec-table tr:hover td {
    background: var(--color-bg-light);
}

/* ==========================================================================
   联系我们页面
   ========================================================================== */
.contact-section {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
}

.contact-info .info-item {
    display: flex;
    gap: 20px;
    padding: 28px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.contact-info .info-item:last-child {
    border-bottom: none;
}

.contact-info .info-item .icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.08), rgba(201, 169, 97, 0.08));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-info .info-item .icon svg {
    width: 24px;
    height: 24px;
}

.contact-info .info-item .content h4 {
    font-size: 1.0625rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 6px;
}

.contact-info .info-item .content p {
    font-size: 0.9375rem;
    color: var(--color-text-body);
    line-height: 1.7;
}

.contact-info .info-item .content p.sub {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* 联系表单 */
.contact-form-wrap {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-light);
}

.contact-form-wrap h3 {
    font-size: 1.5rem;
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-form-wrap .form-desc {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text);
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group label .required {
    color: var(--color-accent);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--color-text);
    background: var(--color-bg-soft);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-white);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.08);
}

.form-control::placeholder {
    color: var(--color-text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238a8a8a' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-submit {
    width: 100%;
    padding: 16px;
    font-size: 1rem;
}

/* 地图区域 */
.map-section {
    background: var(--color-bg-light);
}

.map-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--color-white);
}

.map-frame {
    width: 100%;
    height: 440px;
    background: #e8eef5;
}

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

.map-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 18px 24px;
    background: var(--color-white);
    border-top: 1px solid var(--color-border-light);
}

.map-info-text {
    display: flex;
    flex-direction: column;
}

.map-info-text strong {
    font-size: 1.0625rem;
    color: var(--color-text);
    font-weight: 600;
}

.map-info-text span {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.map-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ==========================================================================
   页脚
   ========================================================================== */
.footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 64px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-name {
    color: var(--color-white);
}

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

/* 页脚 logo 图标（透明背景图标在深色页脚上的卡片感） */
.footer-brand .logo-icon {
    height: 72px;
    background: var(--color-white);
    padding: 10px 10px;
    border-radius: var(--radius-sm);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.28);
}

.footer-brand p {
    font-size: 0.875rem;
    line-height: 1.8;
    margin: 24px 0;
    color: rgba(255, 255, 255, 0.6);
    max-width: 320px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

.footer-social a svg {
    width: 20px;
    height: 20px;
}

.footer-col h4 {
    font-size: 1rem;
    color: var(--color-white);
    font-weight: 600;
    margin-bottom: 24px;
}

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

.footer-col ul li a {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition-fast);
}

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

.footer-col .contact-item {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 14px;
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

.footer-col .contact-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--color-accent);
}

/* ==========================================================================
   备案信息公示页
   ========================================================================== */
.beian-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 48px 56px;
    max-width: 800px;
    margin: 0 auto;
}

.beian-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(30, 58, 95, 0.06);
    color: var(--color-primary);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.beian-row {
    display: flex;
    align-items: flex-start;
    padding: 18px 0;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.9375rem;
}

.beian-row:last-child {
    border-bottom: none;
}

.beian-row .label {
    width: 180px;
    flex-shrink: 0;
    color: var(--color-text-muted);
}

.beian-row .value {
    color: var(--color-text);
    font-weight: 500;
    flex: 1;
}

.beian-row .value a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.beian-row .value a:hover {
    color: var(--color-accent);
}

.beian-note {
    background: var(--color-bg-light);
    border-left: 4px solid var(--color-accent);
    padding: 20px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    max-width: 800px;
    margin: 32px auto 0;
}

.beian-note strong {
    color: var(--color-text);
}

@media (max-width: 768px) {
    .beian-card { padding: 32px 24px; }
    .beian-row { flex-direction: column; gap: 4px; }
    .beian-row .label { width: auto; }
}

.footer-bottom {
    padding: 28px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.4);
}

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

/* 备案号链接（工信部备案管理系统） */
.beian-link {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    transition: var(--transition-fast);
}

.beian-link:hover {
    color: var(--color-accent);
}

/* ==========================================================================
   生产设备 / 首页企业简介
   ========================================================================== */
.equipment-section {
    background: var(--color-white);
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.equipment-item {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: 28px 16px;
    text-align: center;
    transition: var(--transition);
}

.equipment-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.equipment-item .qty {
    display: inline-block;
    min-width: 40px;
    padding: 3px 12px;
    margin-bottom: 14px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.equipment-item .name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.5;
}

/* ==========================================================================
   动画
   ========================================================================== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1024px) {
    .hero h1 { font-size: 2.75rem; }
    .business-grid { grid-template-columns: repeat(2, 1fr); }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .applications-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
    .product-category { grid-template-columns: 1fr; gap: 40px; }
    .product-category:nth-child(even) .product-category-visual { order: 0; }
    .contact-section { grid-template-columns: 1fr; }
    .equipment-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .section { padding: 64px 0; }
    .section-header { margin-bottom: 40px; }
    .section-header h2 { font-size: 1.75rem; }

    .craft-flow { grid-template-columns: repeat(3, 1fr); padding: 32px 20px; gap: 18px; }
    .craft-step { grid-column: span 1; padding: 8px 4px; }
    .craft-arrow { display: none; }
    .craft-step p { max-width: none; }

    .nav-menu {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 24px;
        gap: 0;
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        transition: var(--transition);
        align-items: stretch;
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-menu a {
        padding: 14px 16px;
        border-bottom: 1px solid var(--color-border-light);
    }

    .nav-menu a::after { display: none; }

    .nav-cta {
        margin: 16px 0 0;
        text-align: center;
    }

    .nav-toggle { display: flex; }

    .hero { min-height: auto; padding: 120px 0 80px; }
    .hero .container { grid-template-columns: 1fr; gap: 48px; }
    .hero h1 { font-size: 2.25rem; }
    .hero-visual { height: 360px; }
    .hero-stats { gap: 32px; }
    .hero-stat .num { font-size: 2rem; }

    .business-grid { grid-template-columns: 1fr; }
    .advantages-grid { grid-template-columns: 1fr 1fr; }
    .applications-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .values-grid { grid-template-columns: 1fr; }

    .about-intro { grid-template-columns: 1fr; gap: 40px; }

    .timeline::before { left: 20px; }
    .timeline-item { width: 100%; padding: 0 0 40px 56px; text-align: left; }
    .timeline-item:nth-child(even) { margin-left: 0; padding: 0 0 40px 56px; }
    .timeline-item::before { left: 12px; right: auto; }
    .timeline-item:nth-child(even)::before { left: 12px; }

    .product-features-list { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr 1fr; gap: 40px 16px; }
    .process-steps::before { display: none; }

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

    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }

    .page-hero { padding: 140px 0 64px; }
    .page-hero h1 { font-size: 2.25rem; }

    .contact-form-wrap { padding: 32px 24px; }
    .cta-box { padding: 56px 24px; }
    .cta-box h2 { font-size: 1.75rem; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.875rem; }
    .hero-tagline { font-size: 1.0625rem; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .hero-stats { flex-wrap: wrap; gap: 24px; }

    .advantages-grid { grid-template-columns: 1fr; }
    .applications-grid { grid-template-columns: 1fr; }

    .section-header h2 { font-size: 1.5rem; }
    .business-card { padding: 32px 24px; }

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

    .craft-flow { grid-template-columns: repeat(3, 1fr); padding: 32px 24px; gap: 16px; }
    .craft-step { grid-column: span 1; padding: 16px 8px; }
    .craft-arrow { display: none; }
    .craft-step p { max-width: none; }

    .map-frame { height: 300px; }
    .map-info { flex-direction: column; align-items: flex-start; }
    .map-actions { width: 100%; }
    .map-actions .btn { flex: 1; text-align: center; }
}