/* ======================================================================
 * 企业官网前台主样式（欧美风格 / 响应式）
 * 风格：现代欧美工业制造企业官网
 *   - 大字号无衬线排版、宽留白、强对比
 *   - 首页透明导航叠加 Banner，滚动后转为实色
 *   - Banner 大图淡入淡出切换
 *   - 元素进入视口上浮淡入动画
 * 断点：>=1200 大屏 / 992-1199 中屏 / 768-991 平板 / <768 手机
 * ====================================================================== */

/* ------------------------------ 变量 ------------------------------ */
:root {
    --c-primary: #0b5cab;
    --c-primary-dark: #084a8a;
    --c-primary-light: #2f7fd1;
    --c-hover: #4a9fe0;
    --c-hover-soft: rgba(74, 159, 224, .12);
    --c-accent: #ff7a18;
    --c-accent-dark: #e56600;
    --c-text: #14181f;
    --c-text-sub: #5b6675;
    --c-text-light: #8a94a3;
    --c-border: #e6eaf0;
    --c-bg: #ffffff;
    --c-bg-soft: #f5f8fc;
    --c-bg-dark: #0a1220;
    --c-bg-dark-2: #111c2e;
    --c-white: #ffffff;
    --radius: 4px;
    --radius-lg: 10px;
    --shadow-sm: 0 2px 8px rgba(16, 42, 76, .06);
    --shadow-md: 0 8px 24px rgba(16, 42, 76, .10);
    --shadow-lg: 0 16px 48px rgba(16, 42, 76, .16);
    --container: 1320px;
    --header-h: 88px;
    --transition: .3s cubic-bezier(.25, .8, .25, 1);
    --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* ------------------------------ 重置 ------------------------------ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    font-family: "Inter", "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    color: var(--c-text);
    background: var(--c-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, p, ul, ol, figure {
    margin: 0;
    padding: 0;
}

ul, ol {
    list-style: none;
}

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

img {
    max-width: 100%;
    height: auto;
    border: 0;
    vertical-align: middle;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: 0;
    background: none;
}

/* ------------------------------ 布局容器 ------------------------------ */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 32px;
}

.section {
    padding: 120px 0;
}

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

.section--dark {
    background: var(--c-bg-dark);
    color: var(--c-white);
}

/* 区块标题（欧美风格：大字号 + 字母间距） */
.section-head {
    margin-bottom: 64px;
}

.section-head--center {
    text-align: center;
}

.section-head .en {
    display: block;
    font-size: 13px;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: var(--c-primary);
    font-weight: 700;
    margin-bottom: 14px;
}

.section--dark .section-head .en {
    color: var(--c-accent);
}

.section-head .cn {
    font-size: 46px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -.5px;
}

.section-head .desc {
    margin-top: 18px;
    color: var(--c-text-sub);
    font-size: 17px;
    max-width: 640px;
}

.section-head--center .desc {
    margin-left: auto;
    margin-right: auto;
}

.section--dark .section-head .desc {
    color: rgba(255, 255, 255, .7);
}

/* 通用按钮（欧美风格：直角/微圆角 + 大写字母间距） */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 40px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border-radius: var(--radius);
    transition: all var(--transition);
    white-space: nowrap;
}

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

.btn--primary:hover {
    background: var(--c-primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(11, 92, 171, .35);
}

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

.btn--accent:hover {
    background: var(--c-accent-dark);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(255, 122, 24, .35);
}

.btn--ghost {
    border: 1px solid rgba(255, 255, 255, .55);
    color: var(--c-white);
}

.btn--ghost:hover {
    background: var(--c-white);
    color: var(--c-text);
    border-color: var(--c-white);
}

.btn--outline {
    border: 1px solid var(--c-text);
    color: var(--c-text);
}

.btn--outline:hover {
    background: var(--c-text);
    color: var(--c-white);
}

/* ======================================================================
 * 头部导航
 * ====================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-h);
    background: rgba(255, 255, 255, .97);
    backdrop-filter: blur(12px);
    transition: height var(--transition), background var(--transition), box-shadow var(--transition);
    border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
    height: 72px;
    box-shadow: var(--shadow-sm);
    border-bottom-color: var(--c-border);
}

/* 首页：透明导航叠加在 Banner 之上 */
.site-header--overlay {
    background: transparent;
    backdrop-filter: none;
    border-bottom-color: transparent;
}

.site-header--overlay .logo,
.site-header--overlay .main-nav > ul > li > a,
.site-header--overlay .lang-switch a,
.site-header--overlay .header-search {
    color: var(--c-white);
}

.site-header--overlay .header-search {
    border-color: rgba(255, 255, 255, .4);
}

.site-header--overlay .header-search input {
    color: var(--c-white);
}

.site-header--overlay .header-search input::placeholder {
    color: rgba(255, 255, 255, .7);
}

.site-header--overlay .header-search button {
    color: var(--c-white);
}

.site-header--overlay .nav-toggle span {
    background: var(--c-white);
}

.site-header--overlay .main-nav > ul > li > a::after {
    background: var(--c-white);
}

.site-header--overlay .lang-switch a.active,
.site-header--overlay .lang-switch a:hover {
    background: rgba(255, 255, 255, .18);
    color: var(--c-white);
}

/* 滚动后（或内页）恢复实色导航 */
.site-header--overlay.is-scrolled {
    background: rgba(255, 255, 255, .97);
    backdrop-filter: blur(12px);
    border-bottom-color: var(--c-border);
}

.site-header--overlay.is-scrolled .logo,
.site-header--overlay.is-scrolled .main-nav > ul > li > a,
.site-header--overlay.is-scrolled .lang-switch a {
    color: var(--c-text);
}

.site-header--overlay.is-scrolled .header-search {
    border-color: var(--c-border);
}

.site-header--overlay.is-scrolled .header-search input {
    color: var(--c-text);
}

.site-header--overlay.is-scrolled .header-search input::placeholder {
    color: var(--c-text-light);
}

.site-header--overlay.is-scrolled .header-search button {
    color: var(--c-primary);
}

.site-header--overlay.is-scrolled .nav-toggle span {
    background: var(--c-text);
}

.site-header--overlay.is-scrolled .main-nav > ul > li > a::after {
    background: var(--c-primary);
}

.site-header--overlay.is-scrolled .lang-switch a.active,
.site-header--overlay.is-scrolled .lang-switch a:hover {
    background: var(--c-primary);
    color: var(--c-white);
}

.site-header .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -.5px;
    color: #000;
    flex-shrink: 0;
}

.logo img {
    max-height: 48px;
    width: auto;
    flex-shrink: 0;
}

.logo .logo-name {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -.5px;
    white-space: nowrap;
}

.logo .logo-divider {
    display: inline-block;
    width: 1px;
    height: 26px;
    background: currentColor;
    opacity: .25;
    flex-shrink: 0;
}

.logo .logo-slogan {
    font-size: 13px;
    font-weight: 400;
    letter-spacing: .5px;
    opacity: .8;
    white-space: nowrap;
}

.logo .logo-sub {
    display: block;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 3px;
    color: var(--c-text-light);
    text-transform: uppercase;
}

/* 主导航 */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.main-nav > ul {
    display: flex;
    align-items: center;
    gap: 6px;
}

.main-nav > ul > li {
    position: relative;
}

.main-nav > ul > li > a {
    display: block;
    padding: 12px 20px;
    font-size: 17px;
    font-weight: 200;
    letter-spacing: .5px;
    color: var(--c-text);
    border-radius: var(--radius);
}

.main-nav > ul > li > a:hover,
.main-nav > ul > li.active > a {
    color: var(--c-primary);
}

.main-nav > ul > li > a::after {
    content: "";
    display: block;
    height: 2px;
    width: 0;
    margin: 6px auto 0;
    background: var(--c-primary);
    transition: width var(--transition);
}

.main-nav > ul > li:hover > a::after,
.main-nav > ul > li.active > a::after {
    width: 28px;
}

/* 二级菜单 */
.sub-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(12px);
    min-width: 200px;
    padding: 10px 0;
    background: var(--c-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.main-nav > ul > li:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.sub-menu li a {
    display: block;
    padding: 11px 24px;
    font-size: 14px;
    color: var(--c-text-sub);
    white-space: nowrap;
}

.sub-menu li a:hover {
    background: var(--c-bg-soft);
    color: var(--c-primary);
}

/* 头部右侧工具 */
.header-tools {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-shrink: 0;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .5px;
}

.lang-switch a {
    padding: 5px 12px;
    border-radius: 40px;
    color: var(--c-text-sub);
}

.lang-switch a.active,
.lang-switch a:hover {
    background: var(--c-primary);
    color: var(--c-white);
}

.header-search {
    display: flex;
    align-items: center;
    border: 1px solid var(--c-border);
    border-radius: 40px;
    overflow: hidden;
    height: 40px;
    transition: border-color var(--transition);
}

.header-search input {
    border: 0;
    outline: 0;
    padding: 0 18px;
    height: 100%;
    width: 150px;
    font-size: 14px;
    background: transparent;
}

.header-search button {
    width: 46px;
    height: 100%;
    color: var(--c-primary);
    font-size: 16px;
}

/* 汉堡按钮（移动端） */
.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    position: relative;
    flex-shrink: 0;
}

.nav-toggle span {
    position: absolute;
    left: 10px;
    width: 24px;
    height: 2px;
    background: var(--c-text);
    transition: all var(--transition);
}

.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 28px; }

.nav-toggle.is-open span:nth-child(1) {
    top: 21px;
    transform: rotate(45deg);
}

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

.nav-toggle.is-open span:nth-child(3) {
    top: 21px;
    transform: rotate(-45deg);
}

/* 移动端菜单打开时锁定滚动 */
body.nav-open {
    overflow: hidden;
}

/* ======================================================================
 * 首页 Banner（大图切换）
 * ====================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 620px;
    max-height: 960px;
    overflow: hidden;
    display: flex;
    align-items: center;
    background: var(--c-bg-dark);
}

.hero__slider {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1.2s var(--ease-out);
    will-change: opacity;
}

.hero__slide.is-active {
    opacity: 1;
}

.hero__slide-link {
    display: block;
    width: 100%;
    height: 100%;
}

.hero__slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.06);
    transition: transform 7s linear;
}

.hero__slide.is-active img {
    transform: scale(1);
}

.hero__overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(90deg, rgba(6, 14, 26, .88) 0%, rgba(6, 14, 26, .62) 48%, rgba(6, 14, 26, .28) 100%);
}

.hero .container {
    position: relative;
    z-index: 3;
    color: var(--c-white);
}

.hero__inner {
    max-width: 780px;
}

.hero__eyebrow {
    display: inline-block;
    padding: 8px 20px;
    margin-bottom: 28px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 40px;
    color: rgba(255, 255, 255, .92);
}

.hero__title {
    font-size: 72px;
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -1.5px;
    margin-bottom: 26px;
}

.hero__subtitle {
    font-size: 21px;
    font-weight: 300;
    line-height: 1.7;
    color: rgba(255, 255, 255, .82);
    margin-bottom: 44px;
    max-width: 620px;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

/* 轮播控制 */
.hero__controls {
    position: absolute;
    right: 48px;
    bottom: 48px;
    z-index: 4;
    display: flex;
    align-items: center;
    gap: 20px;
}

.hero__arrow {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-white);
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 50%;
    transition: all var(--transition);
}

.hero__arrow:hover {
    background: var(--c-white);
    color: var(--c-text);
    border-color: var(--c-white);
}

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

.hero__dot {
    width: 34px;
    height: 3px;
    border-radius: 2px;
    background: rgba(255, 255, 255, .35);
    transition: all var(--transition);
}

.hero__dot.is-active {
    background: var(--c-white);
    width: 52px;
}

/* 向下滚动提示 */
.hero__scroll {
    position: absolute;
    left: 50%;
    bottom: 36px;
    transform: translateX(-50%);
    z-index: 4;
    color: rgba(255, 255, 255, .8);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 4px;
    text-align: center;
    text-decoration: none;
}

.hero__scroll i {
    display: block;
    width: 1px;
    height: 44px;
    margin: 10px auto 0;
    background: rgba(255, 255, 255, .5);
    animation: scrollDown 1.8s infinite;
}

@keyframes scrollDown {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ======================================================================
 * 滚动进入动画
 * ====================================================================== */
[data-reveal] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
    will-change: opacity, transform;
}

[data-reveal].is-revealed {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    [data-reveal] {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .hero__slide img {
        transform: none;
        transition: none;
    }
}

/* ======================================================================
 * 公司简介 + 数字滚动（大气版）
 * ====================================================================== */
.about-section {
    position: relative;
    overflow: hidden;
    padding-top: 110px;
    padding-bottom: 110px;
    background: linear-gradient(180deg, #ffffff 0%, #f5f8fc 100%);
}

/* 呼吸光晕层（缓慢明暗 + 缩放） */
.about-section::before {
    content: "";
    position: absolute;
    inset: -10%;
    background:
        radial-gradient(900px 460px at 88% 8%, rgba(11, 92, 171, .12), transparent 62%),
        radial-gradient(760px 420px at 6% 96%, rgba(255, 122, 24, .12), transparent 60%);
    pointer-events: none;
    animation: aboutBreath 9s ease-in-out infinite;
    will-change: transform, opacity;
}

@keyframes aboutBreath {
    0%, 100% {
        transform: scale(1);
        opacity: .55;
    }
    50% {
        transform: scale(1.12);
        opacity: 1;
    }
}

/* 背景网格纹理（缓慢漂移） */
.about-section__bg {
    position: absolute;
    inset: -60px;
    background-image:
        linear-gradient(rgba(16, 42, 76, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16, 42, 76, .035) 1px, transparent 1px);
    background-size: 52px 52px;
    -webkit-mask-image: radial-gradient(ellipse 72% 62% at 50% 42%, #000 28%, transparent 78%);
    mask-image: radial-gradient(ellipse 72% 62% at 50% 42%, #000 28%, transparent 78%);
    pointer-events: none;
    animation: aboutGridDrift 26s linear infinite;
    will-change: transform;
}

@keyframes aboutGridDrift {
    from { transform: translate3d(0, 0, 0); }
    to   { transform: translate3d(52px, 52px, 0); }
}

.about-section > .container {
    position: relative;
    z-index: 1;
}

.about {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 90px;
    align-items: center;
}

/* ---------- 左侧图片 ---------- */
.about__media {
    position: relative;
    padding: 0 26px 26px 0;
}

.about__media-frame {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 30px 70px rgba(16, 42, 76, .22);
    z-index: 2;
}

.about__media-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(10, 18, 32, .35) 100%);
    pointer-events: none;
}

.about__media img {
    width: 100%;
    display: block;
    transition: transform 1.1s cubic-bezier(.16, 1, .3, 1);
}

.about__media:hover .about__media-frame img {
    transform: scale(1.05);
}

/* 图片右下角装饰描边方块 */
.about__media-deco {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 62%;
    height: 62%;
    border: 2px solid rgba(11, 92, 171, .28);
    border-radius: 18px;
    z-index: 1;
}

/* 经验徽章 */
.about__badge {
    position: absolute;
    left: 0;
    bottom: 0;
    z-index: 3;
    padding: 24px 34px;
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
    color: var(--c-white);
    border-radius: 0 16px 0 16px;
    box-shadow: 0 18px 40px rgba(11, 92, 171, .38);
}

.about__badge strong {
    display: block;
    font-size: 46px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -1px;
}

.about__badge strong span {
    font-size: 26px;
    color: var(--c-accent);
    margin-left: 2px;
}

.about__badge > span {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    letter-spacing: 2px;
    opacity: .9;
}

/* ---------- 右侧文字 ---------- */
.about__body .section-head {
    margin-bottom: 30px;
}

.about__body .section-head .en {
    display: inline-block;
    position: relative;
    padding-left: 46px;
}

.about__body .section-head .en::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 34px;
    height: 2px;
    background: var(--c-accent);
    transform: translateY(-50%);
}

.about__body .section-head .cn {
    font-size: 40px;
    line-height: 1.25;
    letter-spacing: -.5px;
}

.about__text {
    color: var(--c-text-sub);
    font-size: 16px;
    line-height: 2;
    margin-bottom: 34px;
}

.about__text p,
.about__body p {
    color: var(--c-text-sub);
    margin-bottom: 20px;
    font-size: 16px;
}

.about__actions {
    display: flex;
    align-items: center;
    gap: 26px;
    flex-wrap: wrap;
}

.about__actions .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.about__actions .btn svg {
    transition: transform .35s cubic-bezier(.16, 1, .3, 1);
}

.about__actions .btn:hover svg {
    transform: translateX(5px);
}

.about__link {
    position: relative;
    font-size: 15px;
    font-weight: 600;
    color: var(--c-text);
    text-decoration: none;
    padding-bottom: 4px;
}

.about__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: var(--c-accent);
    transform: scaleX(.35);
    transform-origin: left;
    transition: transform .4s cubic-bezier(.16, 1, .3, 1);
}

.about__link:hover::after {
    transform: scaleX(1);
}

/* ---------- 数字统计 ---------- */
.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 90px;
    padding: 46px 0 0;
    border-top: 1px solid var(--c-border);
}

.stat {
    position: relative;
    padding: 0 34px;
    text-align: left;
}

.stat:first-child {
    padding-left: 0;
}

.stat + .stat::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--c-border) 30%, var(--c-border) 70%, transparent);
}

.stat__num {
    font-size: 56px;
    font-weight: 800;
    color: var(--c-primary);
    line-height: 1;
    letter-spacing: -2px;
    font-variant-numeric: tabular-nums;
}

.stat__num .plus {
    font-size: 28px;
    color: var(--c-accent);
    margin-left: 2px;
}

.stat__label {
    font-size: 14px;
    color: var(--c-text-light);
    margin-top: 12px;
    letter-spacing: 1px;
}

@media (max-width: 992px) {
    .about-section {
        padding-top: 80px;
        padding-bottom: 80px;
    }
    .about {
        gap: 56px;
    }
    .about__body .section-head .cn {
        font-size: 32px;
    }
    .stat__num {
        font-size: 44px;
    }
    .stat {
        padding: 0 22px;
    }
}

@media (max-width: 768px) {
    .about__media {
        padding: 0 18px 18px 0;
    }
    .about__badge {
        padding: 18px 24px;
    }
    .about__badge strong {
        font-size: 36px;
    }
    .stats {
        margin-top: 56px;
        padding-top: 34px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .about__media img,
    .about__actions .btn svg,
    .about__link::after {
        transition: none !important;
    }
    .about__media:hover .about__media-frame img {
        transform: none;
    }
    .about-section::before,
    .about-section__bg {
        animation: none !important;
    }
}

/* ======================================================================
 * 生产车间展示（横向滑动）
 * ====================================================================== */
.workshop-section {
    position: relative;
    background: var(--c-bg-dark);
    color: var(--c-white);
    overflow: hidden;
}

.workshop-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(760px 420px at 12% 0%, rgba(11, 92, 171, .28), transparent 60%),
        radial-gradient(680px 400px at 92% 100%, rgba(255, 122, 24, .18), transparent 58%);
    pointer-events: none;
}

.workshop-section > .container {
    position: relative;
    z-index: 2;
}

.workshop-section .section-head .en {
    color: var(--c-accent);
}

.workshop-section .section-head .cn {
    color: var(--c-white);
}

.workshop-section .section-head .desc {
    color: rgba(255, 255, 255, .62);
}

/* 标题行 + 左右箭头 */
.workshop-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
}

.workshop-head .section-head {
    margin-bottom: 0;
}

.workshop-nav {
    display: flex;
    gap: 12px;
    padding-bottom: 6px;
}

.workshop-arrow {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 50%;
    background: rgba(255, 255, 255, .04);
    color: var(--c-white);
    cursor: pointer;
    transition: background .35s ease, border-color .35s ease, transform .35s ease, color .35s ease;
}

.workshop-arrow:hover {
    background: var(--c-hover);
    border-color: var(--c-hover);
    transform: translateY(-2px);
}

.workshop-arrow:active {
    transform: translateY(0);
}

/* 滑动区 */
.workshop-slider {
    position: relative;
    z-index: 1;
    margin-top: 46px;
}

.workshop-viewport {
    overflow: hidden;
    padding: 0 0 6px;
}

.workshop-track {
    display: flex;
    gap: 24px;
    transition: transform .7s cubic-bezier(.16, 1, .3, 1);
    will-change: transform;
}

.workshop-slide {
    position: relative;
    flex: 0 0 calc((100% - 48px) / 3);
    margin: 0;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    box-shadow: 0 18px 44px rgba(0, 0, 0, .35);
    transition: transform .6s cubic-bezier(.16, 1, .3, 1), box-shadow .6s ease;
}

.workshop-slide.is-active {
    transform: translateY(-6px);
    box-shadow: 0 26px 60px rgba(0, 0, 0, .5);
}

.workshop-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 1s cubic-bezier(.16, 1, .3, 1);
}

.workshop-slide:hover img {
    transform: scale(1.06);
}

/* 底部渐变遮罩 */
.workshop-slide::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 18, 32, 0) 40%, rgba(10, 18, 32, .85) 100%);
    pointer-events: none;
}

/* 顶部细线装饰 */
.workshop-slide::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    z-index: 3;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .55s cubic-bezier(.16, 1, .3, 1);
}

.workshop-slide.is-active::before,
.workshop-slide:hover::before {
    transform: scaleX(1);
}

/* 说明文字 */
.workshop-slide__cap {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 26px 28px;
}

.workshop-slide__num {
    flex: 0 0 auto;
    font-size: 30px;
    font-weight: 800;
    line-height: 1;
    color: var(--c-accent);
    letter-spacing: -1px;
    opacity: .9;
}

.workshop-slide__txt h3 {
    margin: 0 0 6px;
    font-size: 19px;
    font-weight: 700;
    color: var(--c-white);
    letter-spacing: .5px;
}

.workshop-slide__txt p {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.7;
    color: rgba(255, 255, 255, .72);
}

/* 指示点 */
.workshop-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.workshop-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, .25);
    cursor: pointer;
    transition: width .4s cubic-bezier(.16, 1, .3, 1), background .4s ease;
}

.workshop-dot.is-active {
    width: 30px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
}

@media (max-width: 992px) {
    .workshop-slide {
        flex: 0 0 calc((100% - 24px) / 2);
    }
}

@media (max-width: 640px) {
    .workshop-head {
        align-items: flex-start;
    }
    .workshop-nav {
        padding-bottom: 0;
    }
    .workshop-arrow {
        width: 42px;
        height: 42px;
    }
    .workshop-slider {
        margin-top: 32px;
    }
    .workshop-track {
        gap: 16px;
    }
    .workshop-slide {
        flex: 0 0 86%;
    }
    .workshop-slide__cap {
        padding: 20px 22px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .workshop-track,
    .workshop-slide,
    .workshop-slide img,
    .workshop-slide::before,
    .workshop-arrow,
    .workshop-dot {
        transition: none !important;
    }
    .workshop-slide:hover img {
        transform: none;
    }
}

/* ======================================================================
 * 产品展示
 * ====================================================================== */
.product-cats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    margin-bottom: 72px;
}

.cat-card {
    position: relative;
    display: block;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--c-white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

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

.cat-card__img {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--c-bg-soft);
}

.cat-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .7s var(--ease-out);
}

.cat-card:hover .cat-card__img img {
    transform: scale(1.1);
}

.cat-card__body {
    padding: 22px 26px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.cat-card__name {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -.2px;
}

.cat-card__arrow {
    color: var(--c-hover);
    font-size: 20px;
    transition: transform var(--transition);
}

.cat-card:hover .cat-card__arrow {
    transform: translateX(6px);
}

/* 产品列表 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.product-card {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

.product-card:hover {
    border-color: var(--c-hover);
    box-shadow: 0 16px 40px rgba(74, 159, 224, .22);
    transform: translateY(-6px);
}

.product-card__img {
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: var(--c-bg-soft);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .7s var(--ease-out);
}

.product-card:hover .product-card__img img {
    transform: scale(1.08);
}

.product-card__body {
    padding: 20px 22px 26px;
}

.product-card__title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 52px;
}

.product-card__title a:hover {
    color: var(--c-hover);
}

.product-card__cat {
    font-size: 13px;
    letter-spacing: .5px;
    color: var(--c-text-light);
}

/* ======================================================================
 * 研发创新（三卡片）
 * ====================================================================== */
.rd-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.rd-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 440px;
    display: flex;
    align-items: flex-end;
    color: var(--c-white);
    background: var(--c-bg-dark);
}

.rd-card__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.rd-card__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .9s var(--ease-out);
}

.rd-card:hover .rd-card__bg img {
    transform: scale(1.1);
}

.rd-card__bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(6, 14, 26, 0) 28%, rgba(6, 14, 26, .92) 100%);
}

.rd-card__body {
    position: relative;
    z-index: 2;
    padding: 38px 32px;
}

.rd-card__title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -.3px;
}

.rd-card__desc {
    font-size: 15px;
    color: rgba(255, 255, 255, .8);
    margin-bottom: 18px;
}

.rd-card__more {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--c-accent);
}

/* ======================================================================
 * 新闻资讯
 * ====================================================================== */
.news-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 56px;
}

.news-tabs {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 24px;
}

.news-tab {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 26px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    color: var(--c-text-sub);
    transition: all var(--transition);
}

.news-tab:hover,
.news-tab.active {
    background: var(--c-hover);
    border-color: var(--c-hover);
    color: var(--c-white);
}

.news-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.news-card {
    display: flex;
    flex-direction: column;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

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

.news-card__img {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--c-bg-soft);
}

.news-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .7s var(--ease-out);
}

.news-card:hover .news-card__img img {
    transform: scale(1.08);
}

.news-card__body {
    padding: 22px 24px 26px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-card__title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card__title a:hover {
    color: var(--c-hover);
}

.news-card__summary {
    font-size: 14px;
    color: var(--c-text-sub);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 16px;
    flex: 1;
}

.news-card__meta {
    font-size: 13px;
    color: var(--c-text-light);
    padding-top: 14px;
    border-top: 1px dashed var(--c-border);
}

/* ---------- 新闻卡片（首页，日期突出） ---------- */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 52px;
}

.news-card2 {
    position: relative;
    display: flex;
    gap: 20px;
    padding: 26px 26px 24px;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    overflow: hidden;
    transition: transform .45s cubic-bezier(.16, 1, .3, 1),
                box-shadow .45s cubic-bezier(.16, 1, .3, 1),
                border-color .45s ease;
}

.news-card2::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--c-hover), var(--c-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .55s cubic-bezier(.16, 1, .3, 1);
}

.news-card2:hover {
    transform: translateY(-8px);
    border-color: var(--c-hover);
    box-shadow: 0 20px 44px rgba(74, 159, 224, .2);
}

.news-card2:hover::before {
    transform: scaleX(1);
}

/* 日期块 */
.news-card2__date {
    flex: 0 0 auto;
    width: 76px;
    height: 76px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--c-bg-soft);
    border: 1px solid var(--c-border);
    transition: background .45s ease, border-color .45s ease, color .45s ease;
}

.news-card2:hover .news-card2__date {
    background: var(--c-hover);
    border-color: var(--c-hover);
}

.news-card2__day {
    font-size: 30px;
    font-weight: 800;
    line-height: 1;
    color: var(--c-primary);
    letter-spacing: -1px;
    font-variant-numeric: tabular-nums;
    transition: color .45s ease;
}

.news-card2__ym {
    margin-top: 5px;
    font-size: 12px;
    color: var(--c-text-light);
    letter-spacing: .5px;
    font-variant-numeric: tabular-nums;
    transition: color .45s ease;
}

.news-card2:hover .news-card2__day,
.news-card2:hover .news-card2__ym {
    color: var(--c-white);
}

/* 内容 */
.news-card2__body {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.news-card2__title {
    margin: 0 0 10px;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--c-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color .3s ease;
}

.news-card2:hover .news-card2__title {
    color: var(--c-hover);
}

.news-card2__desc {
    margin: 0 0 16px;
    font-size: 13.5px;
    line-height: 1.7;
    color: var(--c-text-sub);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.news-card2__more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--c-hover);
}

.news-card2__more svg {
    transition: transform .35s cubic-bezier(.16, 1, .3, 1);
}

.news-card2:hover .news-card2__more svg {
    transform: translateX(5px);
}

@media (max-width: 992px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 22px;
    }
}

@media (max-width: 640px) {
    .news-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 36px;
    }
    .news-card2 {
        padding: 22px;
        gap: 16px;
    }
    .news-card2__date {
        width: 66px;
        height: 66px;
    }
    .news-card2__day {
        font-size: 26px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .news-card2,
    .news-card2::before,
    .news-card2__date,
    .news-card2__day,
    .news-card2__ym,
    .news-card2__title,
    .news-card2__more svg {
        transition: none !important;
    }
    .news-card2:hover {
        transform: none;
    }
}

/* 新闻面板（选项卡内容） */
.news-panels {
    min-width: 0;
}

.news-panel {
    display: none;
}

.news-panel.active {
    display: block;
    animation: fadeInUp .6s var(--ease-out);
}

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

/* ======================================================================
 * 最新动态 + 推荐内容
 * ====================================================================== */
.latest-layout {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 56px;
    align-items: start;
}

.latest-list {
    border-top: 1px solid var(--c-border);
}

.latest-item {
    display: flex;
    gap: 28px;
    padding: 28px 0;
    border-bottom: 1px solid var(--c-border);
    transition: all var(--transition);
}

.latest-item:hover {
    padding-left: 12px;
}

.latest-item__date {
    flex-shrink: 0;
    width: 76px;
    text-align: center;
    color: var(--c-text-light);
}

.latest-item__date .d {
    display: block;
    font-size: 38px;
    font-weight: 800;
    line-height: 1;
    color: var(--c-primary);
    letter-spacing: -1px;
}

.latest-item__date .ym {
    display: block;
    font-size: 13px;
    margin-top: 6px;
    letter-spacing: .5px;
}

.latest-item__body {
    min-width: 0;
}

.latest-item__title {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 10px;
}

.latest-item__title a:hover {
    color: var(--c-hover);
}

.latest-item__summary {
    font-size: 14px;
    color: var(--c-text-sub);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 推荐内容侧栏 */
.latest-side {
    background: var(--c-bg-soft);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.latest-side__title {
    font-size: 20px;
    font-weight: 700;
    padding-bottom: 18px;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--c-primary);
}

.recommend-list {
    display: grid;
    gap: 22px;
}

.recommend-item {
    display: flex;
    gap: 16px;
    align-items: center;
}

.recommend-item__img {
    flex-shrink: 0;
    width: 92px;
    height: 68px;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--c-white);
}

.recommend-item__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s var(--ease-out);
}

.recommend-item:hover .recommend-item__img img {
    transform: scale(1.08);
}

.recommend-item__body {
    min-width: 0;
}

.recommend-item__body h4 {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recommend-item__body h4 a:hover {
    color: var(--c-hover);
}

.recommend-item__time {
    font-size: 12px;
    color: var(--c-text-light);
}

/* ======================================================================
 * 合作伙伴
 * ====================================================================== */
.partner-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    margin-bottom: 56px;
}

.partner-intro__stat {
    text-align: right;
}

.partner-intro__num {
    font-size: 76px;
    font-weight: 800;
    color: var(--c-accent);
    line-height: 1;
    letter-spacing: -2px;
}

.partner-intro__num .plus {
    font-size: 40px;
}

.partner-intro__label {
    font-size: 16px;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, .75);
    margin-top: 10px;
}

.partner-intro__text {
    color: rgba(255, 255, 255, .72);
    font-size: 16px;
}

.partner-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.partner-item {
    background: var(--c-bg-dark-2);
    aspect-ratio: 3 / 2;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    transition: background var(--transition);
}

.partner-item:hover {
    background: var(--c-hover);
}

.partner-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(1) brightness(1.6);
    opacity: .8;
    transition: all var(--transition);
}

.partner-item:hover img {
    filter: none;
    opacity: 1;
}

.partner-item span {
    color: rgba(255, 255, 255, .8);
    font-size: 15px;
    text-align: center;
}

/* ======================================================================
 * 页脚
 * ====================================================================== */
.site-footer {
    background: var(--c-bg-dark);
    color: rgba(255, 255, 255, .7);
    padding-top: 88px;
    font-size: 15px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 56px;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-brand .logo {
    color: var(--c-white);
    margin-bottom: 20px;
}

.footer-brand p {
    line-height: 1.9;
    margin-bottom: 20px;
}

.footer-qr {
    display: flex;
    gap: 16px;
}

.footer-qr figure {
    text-align: center;
}

.footer-qr img {
    width: 96px;
    height: 96px;
    border-radius: var(--radius);
    background: var(--c-white);
    padding: 4px;
}

.footer-qr figcaption {
    font-size: 12px;
    margin-top: 8px;
    color: rgba(255, 255, 255, .55);
}

.footer-col h4 {
    color: var(--c-white);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: .5px;
    margin-bottom: 22px;
}

.footer-col ul li {
    margin-bottom: 13px;
}

.footer-col ul li a:hover {
    color: var(--c-accent);
}

.footer-contact li {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    line-height: 1.7;
}

.footer-contact .ico {
    color: var(--c-accent);
    flex-shrink: 0;
}

.footer-bottom {
    padding: 28px 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
        justify-content: center;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, .5);
}

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

/* ======================================================================
 * 悬浮工具（返回顶部 / 客服）
 * ====================================================================== */
.float-tools {
    position: fixed;
    right: 24px;
    bottom: 44px;
    z-index: 900;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--c-white);
    color: var(--c-primary);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all var(--transition);
}

.float-btn:hover {
    background: var(--c-primary);
    color: var(--c-white);
    transform: translateY(-4px);
}

.float-btn--top {
    opacity: 0;
    visibility: hidden;
}

.float-btn--top.is-show {
    opacity: 1;
    visibility: visible;
}

/* ======================================================================
 * 内页通用
 * ====================================================================== */
.page-banner {
    margin-top: var(--header-h);
    padding: 100px 0;
    background: linear-gradient(120deg, var(--c-bg-dark) 0%, var(--c-primary-dark) 100%);
    color: var(--c-white);
    text-align: center;
}

.page-banner h1 {
    font-size: 44px;
    font-weight: 800;
    letter-spacing: -.5px;
    margin-bottom: 14px;
}

.page-banner p {
    color: rgba(255, 255, 255, .72);
    font-size: 16px;
    max-width: 720px;
    margin: 0 auto;
}

/* 面包屑 */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, .65);
    margin-top: 22px;
    justify-content: center;
}

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

.breadcrumb .sep {
    opacity: .5;
}

/* ======================================================================
 * 内容列表 / 文章
 * ====================================================================== */
.content-list {
    display: grid;
    gap: 24px;
}

.content-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 32px;
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

.content-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: transparent;
}

.content-item__media {
    overflow: hidden;
    background: var(--c-bg-soft);
}

.content-item__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}

.content-item:hover .content-item__media img {
    transform: scale(1.06);
}

.content-item__body {
    padding: 32px 32px 32px 0;
    display: flex;
    flex-direction: column;
}

.content-item__title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 14px;
}

.content-item__title a:hover {
    color: var(--c-hover);
}

.content-item__summary {
    color: var(--c-text-sub);
    font-size: 15px;
    line-height: 1.85;
    margin-bottom: 20px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.content-item__meta {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 13px;
    color: var(--c-text-light);
}

/* 文章详情 */
.article {
    max-width: 900px;
    margin: 0 auto;
}

.article__head {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--c-border);
}

.article__title {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.35;
    margin-bottom: 18px;
}

.article__meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
    color: var(--c-text-light);
}

.article__body {
    font-size: 16px;
    line-height: 2;
    color: var(--c-text);
}

.article__body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    margin: 24px 0;
}

.article__body h2,
.article__body h3 {
    margin: 36px 0 16px;
    font-weight: 700;
}

.article__body p {
    margin-bottom: 18px;
}

.article__body ul,
.article__body ol {
    margin: 0 0 18px 22px;
}

.article__body li {
    margin-bottom: 8px;
}

.article__body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
}

.article__body th,
.article__body td {
    border: 1px solid var(--c-border);
    padding: 12px 16px;
    text-align: left;
}

.article__body th {
    background: var(--c-bg-soft);
    font-weight: 700;
}

.article__foot {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--c-border);
    display: flex;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.article__nav a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--c-text-sub);
    font-size: 15px;
}

.article__nav a:hover {
    color: var(--c-hover);
}

/* ======================================================================
 * 新闻页 / 筛选栏
 * ====================================================================== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 48px;
}

.filter-bar a {
    padding: 10px 24px;
    border-radius: 999px;
    border: 1px solid var(--c-border);
    font-size: 15px;
    color: var(--c-text-sub);
    transition: all var(--transition);
}

.filter-bar a:hover,
.filter-bar a.is-active {
    background: var(--c-hover);
    border-color: var(--c-hover);
    color: var(--c-white);
}

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

/* 侧栏 */
.side-box {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 28px;
}

.side-box__title {
    font-size: 18px;
    font-weight: 700;
    padding-bottom: 16px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--c-primary);
    display: inline-block;
}

.side-list li {
    padding: 12px 0;
    border-bottom: 1px dashed var(--c-border);
    font-size: 15px;
}

.side-list li:last-child {
    border-bottom: 0;
}

.side-list a {
    color: var(--c-text-sub);
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.side-list a:hover {
    color: var(--c-hover);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 56px;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    min-width: 42px;
    height: 42px;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 15px;
    color: var(--c-text-sub);
    transition: all var(--transition);
}

.pagination a:hover,
.pagination .is-active {
    background: var(--c-hover);
    border-color: var(--c-hover);
    color: var(--c-white);
}

/* ======================================================================
 * 产品列表页
 * ====================================================================== */
.product-grid--page {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

/* 分页导航（{gax:pagination} 标签输出） */
.pager {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 48px;
}

.pager__item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--c-border, #e5e5e5);
    border-radius: var(--radius, 6px);
    background: var(--c-white, #fff);
    color: var(--c-text, #333);
    font-size: 14px;
    line-height: 1;
    text-decoration: none;
    transition: all .2s ease;
}

a.pager__item:hover {
    border-color: var(--c-primary, #c8102e);
    color: var(--c-primary, #c8102e);
}

.pager__item.is-active {
    border-color: var(--c-primary, #c8102e);
    background: var(--c-primary, #c8102e);
    color: var(--c-white, #fff);
    cursor: default;
}

.pager__item.is-disabled {
    color: #bbb;
    background: #f7f7f7;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .pager {
        margin-top: 32px;
        gap: 6px;
    }
    .pager__item {
        min-width: 34px;
        height: 34px;
        padding: 0 8px;
        font-size: 13px;
    }
}

/* ======================================================================
 * 联系我们
 * ====================================================================== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 56px;
    align-items: start;
}

.contact-info__item {
    display: flex;
    gap: 18px;
    margin-bottom: 32px;
}

.contact-info__ico {
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    background: var(--c-primary);
    color: var(--c-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.contact-info__item h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.contact-info__item p {
    color: var(--c-text-sub);
    font-size: 15px;
    line-height: 1.8;
}

.contact-form {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

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

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

.form-group label .req {
    color: #e74c3c;
}

.form-control {
    width: 100%;
    padding: 13px 16px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 15px;
    font-family: inherit;
    color: var(--c-text);
    background: var(--c-bg-soft);
    transition: all var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--c-primary);
    background: var(--c-white);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, .1);
}

textarea.form-control {
    min-height: 140px;
    resize: vertical;
}

.btn--block {
    width: 100%;
}

/* 地图 */
.map-wrap {
    margin-top: 72px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    line-height: 0;
}

.map-wrap iframe {
    width: 100%;
    height: 420px;
    border: 0;
}

/* ======================================================================
 * 响应式
 * ====================================================================== */
@media (max-width: 1199px) {
    .hero__title {
        font-size: 52px;
    }

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

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

    .news-layout {
        grid-template-columns: 280px 1fr;
        gap: 40px;
    }

    .latest-layout {
        grid-template-columns: 1.4fr 1fr;
        gap: 40px;
    }

    .partner-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .footer-top {
        grid-template-columns: 1.4fr 1fr 1fr;
    }

    .footer-col--contact {
        grid-column: 1 / -1;
    }
}

@media (max-width: 991px) {
    :root {
        --header-h: 68px;
    }

    .main-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 999;
        display: block;
        background: var(--c-white);
        padding: 24px 32px;
        overflow-y: auto;
        transform: translateX(100%);
        transition: transform var(--transition);
    }

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

    .main-nav > ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .main-nav > ul > li > a {
        padding: 16px 0;
        border-bottom: 1px solid var(--c-border);
        color: var(--c-text) !important;
    }

    /* 移动端：可展开的父级菜单显示箭头指示 */
    .main-nav > ul > li.has-children > a {
        position: relative;
        padding-right: 28px;
    }

    .main-nav > ul > li.has-children > a::before {
        content: "";
        position: absolute;
        right: 6px;
        top: 50%;
        width: 8px;
        height: 8px;
        border-right: 2px solid var(--c-text-light);
        border-bottom: 2px solid var(--c-text-light);
        transform: translateY(-70%) rotate(45deg);
        transition: transform var(--transition);
    }

    .main-nav > ul > li.has-children.is-open > a::before {
        transform: translateY(-30%) rotate(-135deg);
    }

    .main-nav > ul > li > a::after {
        display: none;
    }

    .sub-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        padding: 0 0 0 16px;
        display: none;
    }

    .main-nav > ul > li.is-open .sub-menu {
        display: block;
    }

    .nav-toggle {
        display: flex;
    }

    /* 移动端 logo 精简：隐藏标语与分隔线，缩小图片，避免撑破头部 */
    .logo {
        gap: 8px;
        font-size: 18px;
        min-width: 0;
    }

    .logo img {
        max-height: 38px;
    }

    .logo .logo-name {
        font-size: 18px;
    }

    .logo .logo-divider,
    .logo .logo-slogan {
        display: none;
    }

    /* 移动端头部工具区精简：隐藏电话与搜索，仅保留汉堡按钮 */
    .header-phone,
    .header-search,
    .header-search-toggle {
        display: none;
    }

    .header-tools {
        gap: 10px;
    }

    /* 移动端导航面板：置于头部之下，避免遮挡 logo */
    .main-nav {
        padding-top: 20px;
    }

    .main-nav > ul > li > a {
        font-size: 16px;
    }

    .hero__title {
        font-size: 42px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

    .about,
    .rd-grid,
    .contact-layout,
    .partner-intro,
    .news-layout,
    .latest-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .news-tabs {
        flex-direction: row;
        flex-wrap: wrap;
        margin-top: 0;
    }

    .news-tab {
        flex: 1 1 auto;
    }

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

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

    .content-item {
        grid-template-columns: 1fr;
    }

    .content-item__body {
        padding: 28px;
    }

    .content-item__media {
        aspect-ratio: 16 / 9;
    }

    .article__title {
        font-size: 28px;
    }

    .page-banner {
        padding: 72px 0;
    }

    .page-banner h1 {
        font-size: 34px;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 767px) {
    .section {
        padding: 64px 0;
    }

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

    .section-head .cn {
        font-size: 28px;
    }

    .hero {
        min-height: 78vh;
    }

    .hero__title {
        font-size: 32px;
    }

    .hero__subtitle {
        font-size: 16px;
        margin-bottom: 32px;
    }

    .hero__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero__actions .btn {
        width: 100%;
    }

    .hero__arrow {
        display: none;
    }

    .hero__controls {
        right: 24px;
        bottom: 28px;
    }

    .news-grid,
    .news-page-grid,
    .news-list {
        grid-template-columns: 1fr;
    }

    .latest-side {
        padding: 24px;
    }

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

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

    .contact-form {
        padding: 28px;
    }

    .article__foot {
        flex-direction: column;
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 479px) {
    .hero__title {
        font-size: 26px;
    }

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

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

    .page-banner h1 {
        font-size: 26px;
    }

    .float-tools {
        right: 14px;
        bottom: 24px;
    }
}

/* 打印 */
@media print {

    .site-header,
    .float-tools,
    .site-footer,
    .hero__controls {
        display: none !important;
    }

    body {
        color: #000;
    }
}