/* ==========================================================================
   Goldcheer Pro — 主样式表
   设计系统 · 组件 · 布局 · 响应式
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌 (Design Tokens)
   -------------------------------------------------------------------------- */

:root {
    /* 品牌色 */
    --color-primary: #1a56a8;
    --color-primary-dark: #0d3b72;
    --color-primary-light: #eaf1fb;
    --color-accent: #ff6b35;
    --color-accent-dark: #e85a2b;
    --color-accent-light: #fff0e9;
    --color-secondary: #2d8659;
    --color-secondary-light: #e9f5ef;

    /* 中性色 */
    --color-text: #1a1f2e;
    --color-text-body: #4a5162;
    --color-text-light: #8a92a6;
    --color-bg: #ffffff;
    --color-bg-alt: #f6f8fb;
    --color-bg-dark: #0e1c33;
    --color-border: #e4e9f2;
    --color-border-dark: rgba(255, 255, 255, 0.12);

    /* 字体 */
    --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-heading: var(--font-sans);

    /* 尺寸 */
    --container: 1280px;
    --container-narrow: 900px;
    --header-height: 76px;
    --topbar-height: 38px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 999px;

    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(16, 32, 64, 0.06);
    --shadow-md: 0 4px 16px rgba(16, 32, 64, 0.08);
    --shadow-lg: 0 12px 40px rgba(16, 32, 64, 0.14);
    --shadow-accent: 0 8px 24px rgba(255, 107, 53, 0.35);

    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.35, 1);

    /* 层级 */
    --z-topbar: 200;
    --z-header: 190;
    --z-mobile-nav: 180;
    --z-search: 170;
}

/* --------------------------------------------------------------------------
   2. 基础排版
   -------------------------------------------------------------------------- */

html {
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--color-text-body);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text);
    line-height: 1.3;
    font-weight: 700;
}

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

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

p {
    margin-bottom: 1em;
}

::selection {
    background: var(--color-accent);
    color: #fff;
}

/* 滚动条美化（Webkit） */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg-alt); }
::-webkit-scrollbar-thumb { background: #c3ccdb; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

/* 无障碍 */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    width: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute !important;
    word-wrap: normal !important;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-primary);
    color: #fff;
    padding: 8px 20px;
    z-index: 999;
}

.skip-link:focus {
    left: 0;
}

/* 布局容器 */
.gc-container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.layout-main {
    padding: 60px 24px 80px;
}

.layout-narrow {
    padding: 60px 24px 80px;
}

/* --------------------------------------------------------------------------
   3. 通用区块
   -------------------------------------------------------------------------- */

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

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 48px;
}

.section-tag {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: var(--color-accent-light);
    padding: 4px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 14px;
}

.section-title {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    margin-bottom: 14px;
}

.section-desc {
    color: var(--color-text-light);
    font-size: 1.02rem;
}

.section-more {
    text-align: center;
    margin-top: 40px;
}

/* --------------------------------------------------------------------------
   4. 按钮
   -------------------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.4;
    white-space: nowrap;
}

.btn-lg { padding: 15px 36px; font-size: 1.02rem; }
.btn-block { width: 100%; }

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

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

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

.btn-outline-light {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.6);
    color: #fff;
}
.btn-outline-light:hover {
    background: #fff;
    border-color: #fff;
    color: var(--color-primary-dark);
    transform: translateY(-2px);
}

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

/* --------------------------------------------------------------------------
   5. 顶部信息栏
   -------------------------------------------------------------------------- */

.topbar {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.8rem;
    height: var(--topbar-height);
    position: relative;
    z-index: var(--z-topbar);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--topbar-height);
    gap: 16px;
}

.topbar-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.topbar-item a {
    color: rgba(255, 255, 255, 0.85);
}

.topbar-item a:hover {
    color: var(--color-accent);
}

.topbar-item .gc-icon {
    color: var(--color-accent);
    flex: none;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

/* --------------------------------------------------------------------------
   6. 主导航
   -------------------------------------------------------------------------- */

.site-header {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    transition: box-shadow 0.3s ease;
}

.site-header.is-stuck {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 32px;
}

/* Logo */
.site-branding { flex: none; }

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

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    font-weight: 800;
    font-size: 1.05rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.02em;
}

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

.logo-words strong {
    font-size: 1.15rem;
    color: var(--color-text);
    letter-spacing: 0.08em;
}

.logo-words em {
    font-style: normal;
    font-size: 0.72rem;
    color: var(--color-text-light);
    letter-spacing: 0.04em;
}

/* 自定义 Logo 尺寸修正 */
.custom-logo {
    max-height: 56px;
    width: auto;
}

/* 菜单 */
.main-navigation ul {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

.main-navigation li { position: relative; }

.main-navigation a {
    display: block;
    padding: 10px 18px;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.98rem;
    border-radius: var(--radius-sm);
}

.main-navigation a:hover,
.main-navigation .current-menu-item > a,
.main-navigation .current_page_item > a {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

/* 下拉子菜单 */
.main-navigation .sub-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 200px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: var(--transition);
    flex-direction: column;
    gap: 2px;
    z-index: 10;
}

.main-navigation li:hover > .sub-menu,
.main-navigation li:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.main-navigation .sub-menu a {
    padding: 9px 14px;
    font-size: 0.92rem;
    border-radius: var(--radius-sm);
}

.main-navigation .sub-menu a:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* 小箭头 */
.main-navigation .menu-item-has-children > a::after {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    margin-left: 8px;
    opacity: 0.55;
}

/* 头部按钮区 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: none;
}

.btn-header-cta {
    padding: 10px 22px;
    font-size: 0.9rem;
}

.search-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
}

.search-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
    font-size: 0.86rem;
    font-weight: 500;
    transition: var(--transition);
}

.lang-switch:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.lang-switch .lang-sep {
    color: var(--color-text-light);
}

.lang-switch .lang-opt {
    opacity: 0.45;
    transition: opacity .2s;
}

.lang-switch .lang-opt.is-active {
    opacity: 1;
    color: var(--color-primary);
}

/* 双语段落切换（默认中文，切换英文时显示英文段落） */
body .lang-en {
    display: none;
}

html.lang-en .lang-zh {
    display: none;
}

html.lang-en .lang-en {
    display: block;
}

/* 汉堡菜单 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.menu-toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.is-open .menu-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-open .menu-toggle-bar:nth-child(2) { opacity: 0; }
.menu-toggle.is-open .menu-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 头部搜索层 */
.header-search {
    border-top: 1px solid var(--color-border);
    background: #fff;
    padding: 20px 0;
    box-shadow: var(--shadow-md);
}

/* --------------------------------------------------------------------------
   7. Hero 主视觉
   -------------------------------------------------------------------------- */

.hero {
    position: relative;
    min-height: 620px;
    display: flex;
    align-items: center;
    overflow: hidden;
    color: #fff;
}

.hero-bg,
.hero-bg-default {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero-bg-default {
    background: linear-gradient(135deg, #0d3b72 0%, #1a56a8 45%, #2668c4 100%);
}

.hero-bg-default::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 700px 400px at 85% 20%, rgba(255, 107, 53, 0.28), transparent 60%),
        radial-gradient(ellipse 600px 500px at 10% 90%, rgba(45, 134, 89, 0.22), transparent 60%);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(9, 24, 48, 0.88) 0%, rgba(9, 24, 48, 0.62) 45%, rgba(9, 24, 48, 0.3) 100%);
    z-index: 1;
}

.hero-inner {
    position: relative;
    z-index: 2;
    padding-top: 90px;
    padding-bottom: 90px;
    max-width: 860px;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 107, 53, 0.18);
    border: 1px solid rgba(255, 107, 53, 0.55);
    color: #ffb899;
    font-size: 0.86rem;
    font-weight: 600;
    padding: 6px 18px;
    border-radius: var(--radius-full);
    margin-bottom: 26px;
    backdrop-filter: blur(4px);
}

.hero h1 {
    color: #fff;
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 800;
    letter-spacing: 0.01em;
    margin-bottom: 22px;
}

.hero-line {
    display: block;
}

.hero-line:nth-child(2) {
    background: linear-gradient(90deg, #ff8a5c, #ffb899);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.08rem;
    color: rgba(255, 255, 255, 0.86);
    max-width: 620px;
    margin-bottom: 38px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 44px;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 28px;
    list-style: none;
}

.hero-trust li {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.78);
}

.hero-trust .gc-icon {
    color: #4ade80;
    flex: none;
}

/* 入场动画 */
.hero-badge,
.hero h1,
.hero-subtitle,
.hero-actions,
.hero-trust li {
    opacity: 0;
    transform: translateY(24px);
    animation: heroRise 0.8s cubic-bezier(0.2, 0.8, 0.3, 1) forwards;
}

.hero h1 { animation-delay: 0.1s; }
.hero-subtitle { animation-delay: 0.25s; }
.hero-actions { animation-delay: 0.4s; }
.hero-trust li:nth-child(1) { animation-delay: 0.55s; }
.hero-trust li:nth-child(2) { animation-delay: 0.65s; }
.hero-trust li:nth-child(3) { animation-delay: 0.75s; }

@keyframes heroRise {
    to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   8. 数据统计
   -------------------------------------------------------------------------- */

.stats {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 52px 0;
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 500px 200px at 90% 0%, rgba(255, 107, 53, 0.25), transparent 60%);
    pointer-events: none;
}

.stats-grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-num {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.1;
}

.stat-num .counter { color: #fff; }

.stat-label {
    margin-top: 8px;
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.75);
}

/* --------------------------------------------------------------------------
   9. 工艺流程
   -------------------------------------------------------------------------- */

.process {
    padding: 90px 0;
}

.process-flow {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.process-step {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px 18px;
    text-align: center;
    position: relative;
    transition: var(--transition);
}

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

.process-step-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--color-primary-light);
    color: var(--color-primary);
    margin-bottom: 14px;
    transition: var(--transition);
}

.process-step:hover .process-step-icon {
    background: var(--color-primary);
    color: #fff;
}

.process-step-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}

.process-step-detail {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

/* 流程箭头（伪元素连接） */
.process-step::after {
    content: "";
    position: absolute;
    right: -15px;
    top: 50%;
    width: 10px;
    height: 10px;
    border-right: 2px solid #c3ccdb;
    border-top: 2px solid #c3ccdb;
    transform: translateY(-50%) rotate(45deg);
    transition: var(--transition);
}

.process-step:nth-child(5n)::after {
    display: none; /* 每行最后一个不显示 */
}

.process-step:hover::after {
    border-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   10. 产品分类卡片
   -------------------------------------------------------------------------- */

.product-categories {
    padding: 90px 0;
}

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

.category-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 34px 26px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transition: transform 0.35s ease;
}

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

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

.category-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary);
    margin-bottom: 20px;
    transition: var(--transition);
}

.category-card:hover .category-card-icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    transform: scale(1.08) rotate(-6deg);
}

.category-card-title {
    font-size: 1.12rem;
    margin-bottom: 10px;
}

.category-card-desc {
    font-size: 0.88rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.category-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--color-accent);
}

.category-card-link .gc-icon {
    transition: var(--transition);
}

.category-card:hover .category-card-link .gc-icon {
    transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   11. 生产线方案卡片
   -------------------------------------------------------------------------- */

.lines {
    padding: 90px 0;
}

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

.line-card {
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

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

.line-card-media {
    position: relative;
    display: block;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    background: var(--color-bg-alt);
}

.line-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.line-card:hover .line-card-media img {
    transform: scale(1.06);
}

.line-card-tag {
    position: absolute;
    left: 14px;
    top: 14px;
    background: rgba(13, 59, 114, 0.85);
    color: #fff;
    font-size: 0.76rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    backdrop-filter: blur(4px);
}

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

.line-card-title {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.line-card-title a { color: var(--color-text); }
.line-card-title a:hover { color: var(--color-primary); }

.line-card-excerpt {
    font-size: 0.92rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
    flex: 1;
}

.line-card-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-primary);
}

.line-card-more:hover { color: var(--color-accent); }

.lines-empty {
    text-align: center;
    padding: 70px 20px;
    background: #fff;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
}

.lines-empty p {
    color: var(--color-text-light);
    margin-bottom: 20px;
}

/* 占位图 */
.placeholder-media {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg-alt), #e8eef7);
    color: #b4bfd2;
}

.placeholder-media-sm {
    aspect-ratio: 3 / 2;
}

/* --------------------------------------------------------------------------
   12. 项目案例
   -------------------------------------------------------------------------- */

.projects {
    padding: 90px 0;
}

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

.project-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-bg-dark);
    aspect-ratio: 4 / 3;
    transition: var(--transition);
}

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

.project-card-media {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
}

.project-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    transition: var(--transition);
}

.project-card:hover .project-card-media img {
    opacity: 1;
    transform: scale(1.05);
}

.project-card-region {
    position: absolute;
    left: 14px;
    top: 14px;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.74rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.project-card-body {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 44px 18px 18px;
    background: linear-gradient(transparent, rgba(9, 24, 48, 0.92));
}

.project-card-title {
    font-size: 0.98rem;
    color: #fff;
}

.project-card-title a { color: #fff; }
.project-card-title a:hover { color: var(--color-accent); }

/* --------------------------------------------------------------------------
   13. 核心优势
   -------------------------------------------------------------------------- */

.advantages {
    padding: 90px 0;
}

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

/* 方案详情页内嵌的交钥匙交付（窄列两栏） */
.advantages-grid-line {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.advantages-grid-line .advantage-item {
    padding: 24px 20px;
}

.advantage-item {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 32px 26px;
    border-top: 3px solid var(--color-primary);
    transition: var(--transition);
}

.advantage-item:nth-child(even) {
    border-top-color: var(--color-accent);
}

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

.advantage-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--color-primary-light);
    color: var(--color-primary);
    margin-bottom: 18px;
}

.advantage-item:nth-child(even) .advantage-icon {
    background: var(--color-accent-light);
    color: var(--color-accent);
}

.advantage-item h3 {
    font-size: 1.08rem;
    margin-bottom: 10px;
}

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

/* --------------------------------------------------------------------------
   14. CTA
   -------------------------------------------------------------------------- */

.cta {
    padding: 80px 0;
    background:
        radial-gradient(ellipse 600px 300px at 90% 100%, rgba(255, 107, 53, 0.35), transparent 65%),
        linear-gradient(120deg, #0d3b72, #1a56a8);
    color: #fff;
}

.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-text h2 {
    color: #fff;
    font-size: clamp(1.3rem, 2.6vw, 1.8rem);
    margin-bottom: 10px;
}

.cta-text p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

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

/* --------------------------------------------------------------------------
   15. 页脚
   -------------------------------------------------------------------------- */

.site-footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 0.8fr 1.1fr;
    gap: 44px;
    padding: 70px 24px 50px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}

.footer-logo .logo-mark {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
}

.footer-logo-text {
    color: #fff;
    font-size: 1.1rem;
    letter-spacing: 0.08em;
}

.footer-desc {
    margin-bottom: 22px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.footer-contact-item .gc-icon,
.footer-contact-item svg {
    color: var(--color-accent);
    flex: none;
    margin-top: 4px;
}

.footer-contact-item a {
    color: rgba(255, 255, 255, 0.85);
}

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

.footer-social {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 6px;
}

.footer-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.85);
    transition: background .2s, color .2s, border-color .2s, transform .2s;
    cursor: pointer;
}

.footer-social-link:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
    transform: translateY(-3px);
}

.footer-title {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    position: relative;
}

.footer-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 32px;
    height: 3px;
    border-radius: 2px;
    background: var(--color-accent);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.72);
}

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

.footer-newsletter .btn {
    margin-top: 6px;
}

.footer-bottom {
    border-top: 1px solid var(--color-border-dark);
    padding: 20px 0;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 0.82rem;
}

.footer-copy {
    margin: 0;
}

.footer-copy a { color: rgba(255, 255, 255, 0.85); }

.footer-icp {
    margin: 0;
}

.footer-icp:empty { display: none; }

/* --------------------------------------------------------------------------
   16. 内页头部 + 面包屑
   -------------------------------------------------------------------------- */

.page-hero {
    background:
        radial-gradient(ellipse 500px 260px at 90% 120%, rgba(255, 107, 53, 0.2), transparent 65%),
        linear-gradient(120deg, var(--color-primary-dark), var(--color-primary));
    color: #fff;
    padding: 64px 0;
    text-align: center;
}

.page-hero-title {
    color: #fff;
    font-size: clamp(1.6rem, 3.6vw, 2.4rem);
    margin-bottom: 8px;
}

.page-hero-desc {
    color: rgba(255, 255, 255, 0.82);
    max-width: 640px;
    margin: 0 auto;
}

.page-hero-tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-size: 0.82rem;
    padding: 4px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 14px;
    color: #ffd9c7;
}

.breadcrumb {
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.84rem;
    padding: 10px 0;
}

.breadcrumb a {
    color: var(--color-text-light);
}

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

.breadcrumb strong {
    color: var(--color-text);
    font-weight: 500;
}

.breadcrumb span {
    margin: 0 6px;
    color: #c3ccdb;
}

/* --------------------------------------------------------------------------
   17. 筛选栏
   -------------------------------------------------------------------------- */

.filter-bar {
    margin-bottom: 36px;
}

.filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: #fff;
    color: var(--color-text-body);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.filter-pill:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.filter-pill.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.filter-pill-count {
    font-size: 0.74rem;
    background: rgba(0, 0, 0, 0.07);
    padding: 1px 8px;
    border-radius: var(--radius-full);
}

.filter-pill.active .filter-pill-count {
    background: rgba(255, 255, 255, 0.22);
}

/* --------------------------------------------------------------------------
   18. 产品卡片 / 产品详情
   -------------------------------------------------------------------------- */

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

.product-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: transparent;
}

.product-card-media {
    position: relative;
    display: block;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    background: var(--color-bg-alt);
}

.product-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-card-media img {
    transform: scale(1.06);
}

.product-card-cat {
    position: absolute;
    right: 12px;
    top: 12px;
    background: rgba(26, 86, 168, 0.88);
    color: #fff;
    font-size: 0.74rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    backdrop-filter: blur(4px);
}

.product-card-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card-title {
    font-size: 1.08rem;
    margin-bottom: 8px;
}

.product-card-title a { color: var(--color-text); }
.product-card-title a:hover { color: var(--color-primary); }

.product-card-excerpt {
    font-size: 0.88rem;
    color: var(--color-text-light);
    flex: 1;
    margin-bottom: 16px;
}

.product-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-top: 1px solid var(--color-border);
    padding-top: 14px;
}

.product-card-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
}

.product-card-inquiry {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    background: var(--color-accent-light);
    padding: 5px 16px;
    border-radius: var(--radius-full);
}

.product-card-inquiry:hover {
    background: var(--color-accent);
    color: #fff;
}

/* 产品详情页 */
.product-single-layout {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    padding: 60px 24px 80px;
}

.product-gallery-main {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
    margin-bottom: 16px;
    cursor: zoom-in;
    background: var(--color-bg-alt);
}

.product-gallery-main img {
    display: block;
    width: 100%;
    height: auto;
}

.gc-gallery-zoom {
    position: absolute;
    right: 14px;
    bottom: 14px;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: rgba(30, 58, 95, 0.72);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, transform .2s;
}

.gc-gallery-zoom:hover {
    background: rgba(30, 58, 95, 0.9);
    transform: scale(1.06);
}

.product-gallery-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.product-gallery-thumbs img {
    width: 82px;
    height: 60px;
    object-fit: cover;
    border-radius: 6px;
    border: 2px solid var(--color-border);
    cursor: pointer;
    transition: border-color .2s, transform .2s;
}

.product-gallery-thumbs img:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.product-gallery-thumbs img.is-active {
    border-color: var(--color-accent);
}

.product-single-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-info .product-entry {
    font-size: 1.02rem;
}

.product-specs {
    margin-top: 36px;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.specs-table caption {
    caption-side: top;
    text-align: left;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text);
    padding-bottom: 14px;
}

.specs-table th,
.specs-table td {
    padding: 13px 20px;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.94rem;
    text-align: left;
}

.specs-table th {
    background: var(--color-bg-alt);
    color: var(--color-text);
    font-weight: 600;
    width: 38%;
}

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

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

/* 相关产品 */
.related-products {
    margin-top: 48px;
}

.related-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
    padding-left: 14px;
    border-left: 4px solid var(--color-accent);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.related-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 0.88rem;
    color: var(--color-text);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    padding-bottom: 10px;
    transition: var(--transition);
}

.related-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    color: var(--color-primary);
}

.related-thumb {
    aspect-ratio: 3 / 2;
    overflow: hidden;
}

.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-item span {
    padding: 0 12px;
    line-height: 1.4;
}

/* --------------------------------------------------------------------------
   19. 询盘表单
   -------------------------------------------------------------------------- */

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    padding: 60px 24px 90px;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 28px;
}

.contact-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px 22px;
    transition: var(--transition);
}

.contact-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.contact-card-icon {
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.contact-card h3 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.contact-card a,
.contact-card p {
    font-size: 0.92rem;
    color: var(--color-text-body);
    margin: 0;
}

.contact-hours {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 24px;
    padding: 16px 20px;
    background: var(--color-secondary-light);
    border-radius: var(--radius-md);
    color: var(--color-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.inquiry-form-wrap {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: calc(var(--header-height) + 20px);
}

.inquiry-form-title {
    font-size: 1.4rem;
    margin-bottom: 6px;
}

.inquiry-form-desc {
    font-size: 0.86rem;
    color: var(--color-text-light);
    margin-bottom: 28px;
}

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

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.form-field label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 7px;
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.94rem;
    color: var(--color-text);
    background: #fff;
    transition: var(--transition);
}

.form-field textarea {
    resize: vertical;
    min-height: 130px;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 168, 0.12);
}

.form-field input.invalid,
.form-field textarea.invalid {
    border-color: #e11d48;
}

.form-status {
    margin-top: 16px;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    text-align: center;
}

.form-status.is-success {
    background: var(--color-secondary-light);
    color: var(--color-secondary);
}

.form-status.is-error {
    background: #fdecef;
    color: #be123c;
}

.inquiry-submit.is-loading {
    opacity: 0.7;
    pointer-events: none;
}

/* 搜索表单 */
.search-form-inner {
    display: flex;
    gap: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1.5px solid var(--color-border);
    background: #fff;
    transition: var(--transition);
}

.search-form-inner:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 168, 0.12);
}

.search-field {
    flex: 1;
    border: none;
    padding: 12px 18px;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
}

.search-submit {
    border: none;
    background: var(--color-primary);
    color: #fff;
    padding: 0 22px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    transition: var(--transition);
}

.search-submit:hover {
    background: var(--color-primary-dark);
}

.header-search .search-form {
    max-width: 640px;
}

/* --------------------------------------------------------------------------
   20. 博客列表 / 单篇
   -------------------------------------------------------------------------- */

.posts-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.post-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 28px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.post-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.post-item-media {
    display: block;
    aspect-ratio: 3 / 2;
    overflow: hidden;
}

.post-item-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.post-item:hover .post-item-media img {
    transform: scale(1.05);
}

.post-item-body {
    padding: 26px 28px 26px 0;
    display: flex;
    flex-direction: column;
}

.post-item-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.82rem;
    color: var(--color-text-light);
    margin-bottom: 10px;
}

.post-item-cat {
    color: var(--color-accent);
    font-weight: 600;
}

.post-item-title {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.post-item-title a { color: var(--color-text); }
.post-item-title a:hover { color: var(--color-primary); }

.post-item-excerpt {
    font-size: 0.92rem;
    color: var(--color-text-light);
    flex: 1;
    margin-bottom: 14px;
}

.post-item-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* 单篇 */
.single-featured {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 36px;
}

.single-meta {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.single-meta span { margin: 0 4px; }

.single-tags {
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.single-tags a {
    display: inline-block;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    color: var(--color-text-body);
    font-size: 0.82rem;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    margin: 0 8px 8px 0;
}

.single-tags a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.post-navigation {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 36px;
    font-size: 0.9rem;
}

.post-navigation a {
    color: var(--color-text-body);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px 20px;
    display: block;
    max-width: 48%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.post-navigation a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* 正文排版 */
.entry-content {
    font-size: 1.02rem;
}

.entry-content h2 {
    font-size: 1.5rem;
    margin: 1.8em 0 0.7em;
    padding-left: 14px;
    border-left: 4px solid var(--color-accent);
}

.entry-content h3 {
    font-size: 1.22rem;
    margin: 1.5em 0 0.6em;
}

.entry-content ul,
.entry-content ol {
    padding-left: 1.6em;
    margin-bottom: 1em;
}

.entry-content li { margin-bottom: 0.4em; }

.entry-content blockquote {
    border-left: 4px solid var(--color-primary);
    background: var(--color-bg-alt);
    padding: 20px 26px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 1.4em 0;
    font-style: normal;
}

.entry-content blockquote p:last-child { margin-bottom: 0; }

.entry-content img {
    border-radius: var(--radius-md);
}

.entry-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4em 0;
}

.entry-content table th,
.entry-content table td {
    border: 1px solid var(--color-border);
    padding: 10px 16px;
    text-align: left;
    font-size: 0.94rem;
}

.entry-content table th {
    background: var(--color-bg-alt);
}

/* 搜索结果 */
.search-results {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.search-item {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 26px 30px;
    transition: var(--transition);
}

.search-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.search-item-title {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.search-item-excerpt {
    font-size: 0.92rem;
    color: var(--color-text-light);
    margin-bottom: 12px;
}

.search-item-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.82rem;
}

.search-item-type {
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 600;
    padding: 3px 12px;
    border-radius: var(--radius-full);
}

.search-item-link {
    color: var(--color-text-light);
    word-break: break-all;
}

/* 空状态 / 404 */
.empty-state,
.error-404-wrap {
    text-align: center;
    padding: 80px 20px;
}

.error-404 {
    max-width: 560px;
    margin: 0 auto;
}

.error-code {
    font-size: 6.5rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(120deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.error-404 h1 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.error-404 p {
    color: var(--color-text-light);
    margin-bottom: 28px;
}

.error-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.error-search .search-form {
    max-width: 440px;
    margin: 0 auto;
}

.empty-state h2 {
    margin-bottom: 10px;
}

.empty-state p {
    color: var(--color-text-light);
    margin-bottom: 24px;
}

.empty-state .search-form {
    max-width: 440px;
    margin: 24px auto 0;
}

/* 分页 */
.pagination-wrap {
    margin-top: 50px;
}

.gc-pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.gc-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 42px;
    padding: 0 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--color-text-body);
    font-size: 0.92rem;
    transition: var(--transition);
}

.gc-pagination .page-numbers:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.gc-pagination .page-numbers.current {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

/* 关于页 */
.about-layout {
    padding: 60px 24px 90px;
}

.about-featured {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 48px;
    box-shadow: var(--shadow-md);
}

.about-content {
    max-width: 840px;
    margin: 0 auto;
}

.about-timeline {
    max-width: 840px;
    margin: 70px auto 0;
}

.timeline {
    position: relative;
    padding-left: 32px;
    margin-top: 36px;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 7px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: linear-gradient(var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding: 0 0 34px 26px;
}

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

.timeline-item::before {
    content: "";
    position: absolute;
    left: -32px;
    top: 6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--color-primary);
    box-shadow: 0 0 0 4px rgba(26, 86, 168, 0.14);
}

.timeline-year {
    display: inline-block;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 6px;
}

.timeline-body h3 {
    font-size: 1.05rem;
    margin-bottom: 6px;
}

.timeline-body p {
    font-size: 0.92rem;
    color: var(--color-text-light);
    margin: 0;
}

/* 评论 */
.comments-area {
    margin-top: 56px;
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
}

.comments-title {
    font-size: 1.25rem;
    margin-bottom: 28px;
}

.comment-list {
    list-style: none;
}

.comment-list .comment {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 22px 26px;
    margin-bottom: 18px;
}

.comment-list .children {
    list-style: none;
    margin-top: 18px;
    padding-left: 26px;
}

.comment-author img {
    border-radius: 50%;
    margin-right: 10px;
    float: left;
}

.comment-meta {
    font-size: 0.84rem;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.comment-body {
    font-size: 0.94rem;
    overflow: hidden;
}

.reply a {
    font-size: 0.84rem;
    font-weight: 600;
}

.comment-form input:not([type="submit"]):not([type="checkbox"]),
.comment-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.94rem;
    transition: var(--transition);
}

.comment-form input:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 168, 0.12);
}

.comment-form .submit {
    background: var(--color-primary);
    color: #fff;
    border: none;
    padding: 12px 34px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
}

.comment-form .Submit:hover {
    background: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   21. 动画（滚动显现）
   -------------------------------------------------------------------------- */

.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.8, 0.3, 1);
    transition-delay: var(--step-delay, 0s);
}

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

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .hero-badge,
    .hero h1,
    .hero-subtitle,
    .hero-actions,
    .hero-trust li {
        opacity: 1;
        transform: none;
        animation: none;
    }
}

/* --------------------------------------------------------------------------
   22. 返回顶部
   -------------------------------------------------------------------------- */

.back-to-top {
    position: fixed;
    right: 26px;
    bottom: 26px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: none;
    background: var(--color-primary);
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: var(--transition);
    z-index: 150;
}

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

.back-to-top:hover {
    background: var(--color-accent);
    box-shadow: var(--shadow-accent);
}

/* --------------------------------------------------------------------------
   23. 移动端导航
   -------------------------------------------------------------------------- */

.mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 86vw);
    background: #fff;
    z-index: var(--z-mobile-nav);
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.35, 1);
    overflow-y: auto;
    padding: 80px 24px 40px;
    box-shadow: var(--shadow-lg);
}

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

.mobile-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-nav a {
    display: block;
    padding: 13px 16px;
    color: var(--color-text);
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.mobile-nav a:hover,
.mobile-nav .current-menu-item > a {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.mobile-nav .sub-menu {
    padding-left: 18px;
    border-left: 2px solid var(--color-border);
    margin: 4px 0 4px 16px;
}

.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 20, 40, 0.5);
    backdrop-filter: blur(2px);
    z-index: calc(var(--z-mobile-nav) - 1);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.nav-overlay.is-visible {
    opacity: 1;
    visibility: visible;
}

/* --------------------------------------------------------------------------
   24. 响应式
   -------------------------------------------------------------------------- */

@media (max-width: 1080px) {

    .main-navigation { display: none; }
    .menu-toggle { display: flex; }

    .process-flow {
        grid-template-columns: repeat(4, 1fr);
    }
    .process-step:nth-child(5n)::after { display: block; }
    .process-step:nth-child(4n)::after { display: none; }

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

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

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

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

@media (max-width: 860px) {

    :root { --header-height: 64px; }

    .topbar-left { display: none; }
    .topbar-inner { justify-content: center; }

    .hero { min-height: 520px; }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .process-flow {
        grid-template-columns: repeat(2, 1fr);
    }
    .process-step::after { display: none !important; }

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

    .lines-grid,
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }

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

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

    .product-single-layout {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .inquiry-form-wrap {
        position: static;
        padding: 30px 24px;
    }

    .post-item {
        grid-template-columns: 1fr;
    }
    .post-item-body {
        padding: 0 24px 24px;
    }

    .form-row-2 {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .cta-inner {
        flex-direction: column;
        text-align: center;
    }

    .section-head { margin-bottom: 34px; }

    .process,
    .product-categories,
    .lines,
    .projects,
    .advantages {
        padding: 60px 0;
    }
}

@media (max-width: 560px) {

    .category-grid,
    .lines-grid,
    .products-grid,
    .projects-grid,
    .advantages-grid,
    .advantages-grid-line {
        grid-template-columns: 1fr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 54px 24px 40px;
    }

    .footer-bottom-inner {
        justify-content: center;
        text-align: center;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .filter-pills {
        gap: 8px;
    }

    .filter-pill {
        padding: 8px 14px;
        font-size: 0.84rem;
    }

    .topbar-right span:not(.topbar-phone) { display: none; }

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

    .layout-main,
    .layout-narrow {
        padding: 36px 24px 60px;
    }

    .post-navigation { flex-direction: column; }
    .post-navigation a { max-width: 100%; }
}

/* --------------------------------------------------------------------------
   25. WordPress 核心样式对齐
   -------------------------------------------------------------------------- */

.alignleft { float: left; margin: 0.5em 1.5em 1em 0; }
.alignright { float: right; margin: 0.5em 0 1em 1.5em; }
.aligncenter { display: block; margin: 1em auto; }

.wp-caption { max-width: 100%; }
.wp-caption-text {
    font-size: 0.84rem;
    color: var(--color-text-light);
    text-align: center;
    padding: 8px 0;
}

.sticky {
    border-left: 4px solid var(--color-accent);
}

.gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin: 1.4em 0;
}

.gallery-item { margin: 0; }
.gallery-item img { border-radius: var(--radius-sm); width: 100%; }

.wp-block-image img { border-radius: var(--radius-md); }

/* --------------------------------------------------------------------------
   26. 产品图册灯箱（Lightbox）
   -------------------------------------------------------------------------- */

.gc-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: rgba(10, 16, 28, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s, visibility .25s;
}

.gc-lightbox.is-open {
    opacity: 1;
    visibility: visible;
}

.gc-lightbox-img-wrap {
    position: relative;
    max-width: 90vw;
    max-height: 86vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gc-lightbox-img {
    max-width: 90vw;
    max-height: 84vh;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
    transition: transform .15s ease-out;
}

.gc-lightbox-caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -34px;
    text-align: center;
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
}

.gc-lightbox-btn {
    position: absolute;
    z-index: 2;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s;
}

.gc-lightbox-btn:hover {
    background: rgba(255, 255, 255, 0.28);
}

.gc-lightbox-close { top: 24px; right: 24px; }
.gc-lightbox-prev  { left: 20px; top: 50%; transform: translateY(-50%); }
.gc-lightbox-next  { right: 20px; top: 50%; transform: translateY(-50%); }

@media (max-width: 560px) {
    .gc-lightbox-btn { width: 40px; height: 40px; }
    .gc-lightbox-prev { left: 8px; }
    .gc-lightbox-next { right: 8px; }
    .gc-lightbox-close { top: 16px; right: 12px; }
}