/* ==========================================================================
   machinery — 机械行业官网模板  style.css
   ---------------------------------------------------------------------------
   设计令牌对齐参考站：强调色 #ffbf03、容器 1440、断点 768/1024/1440/1600、
   小圆角 2-5px、过渡 0.3s / 0.5s、字体 Microsoft YaHei。
   ========================================================================== */

/* ---------------------------------------------------------------- 1 令牌 */
:root {
    --gold: #ffbf03;
    --gold-d: #edb000;
    --gold-l: #fff6dd;

    --dark: #1b1f24;
    --dark-2: #242a31;
    --dark-3: #2f373f;

    --text: #212529;
    --text-2: #555555;
    --text-3: #92969c;

    --line: #e6eaee;
    --bg: #ffffff;
    --bg-alt: #f3f6f9;
    --bg-alt2: #edf0f3;

    --radius: 4px;
    --radius-sm: 2px;
    --radius-lg: 5px;

    --wrap: 1440px;
    --wrap-narrow: 1200px;

    --t: all .3s ease;
    --t-slow: all .5s ease;

    --shadow: 0 4px 18px rgba(33, 37, 41, .07);
    --shadow-h: 0 14px 34px rgba(33, 37, 41, .14);
}

/* ---------------------------------------------------------------- 2 基础 */
* { box-sizing: border-box; }

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

body {
    margin: 0;
    font-family: "Microsoft YaHei", Arial, "Helvetica Neue", Helvetica, sans-serif;
    font-size: 14px;
    line-height: 1.75;
    color: var(--text-2);
    background: var(--bg);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 { margin: 0; color: var(--text); font-weight: 700; line-height: 1.35; }
p { margin: 0 0 14px; }
img { max-width: 100%; vertical-align: middle; border: 0; }
a { color: inherit; text-decoration: none; transition: var(--t); }
a:hover { color: var(--gold); }
ul, ol { margin: 0; padding: 0; list-style: none; }
em, i { font-style: normal; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 30px; }
.wrap--narrow { max-width: var(--wrap-narrow); }

.section { padding: 88px 0; }
.section--tight { padding: 60px 0; }
.section--alt { background: var(--bg-alt); }
.section--dark { background: var(--dark); color: rgba(255, 255, 255, .72); }
.section--dark h2, .section--dark h3, .section--dark h4 { color: #fff; }

/* 区块标题：左对齐 + 金色短横，参考站用的是紧凑型标题组 */
.sec-head { margin-bottom: 46px; }
.sec-head--center { text-align: center; }

.sec-head .en {
    display: block;
    font-size: 13px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 700;
    margin-bottom: 8px;
}

.sec-head h2 { font-size: 34px; letter-spacing: .5px; }

.sec-head .bar {
    display: block;
    width: 46px;
    height: 3px;
    background: var(--gold);
    margin: 16px 0 0;
}

.sec-head--center .bar { margin-left: auto; margin-right: auto; }

.sec-head .desc {
    margin: 16px 0 0;
    max-width: 760px;
    color: var(--text-3);
    font-size: 14.5px;
}

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

.sec-head--split {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
}

/* ---------------------------------------------------------------- 3 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 28px;
    border-radius: var(--radius-sm);
    font-size: 14.5px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--t);
    white-space: nowrap;
}

.btn--primary { background: var(--gold); color: #1b1f24; }
.btn--primary:hover { background: var(--gold-d); color: #1b1f24; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255, 191, 3, .34); }

.btn--dark { background: var(--dark); color: #fff; }
.btn--dark:hover { background: var(--dark-3); color: #fff; transform: translateY(-2px); }

.btn--line { border-color: var(--line); color: var(--text); background: #fff; }
.btn--line:hover { border-color: var(--gold); color: var(--gold-d); }

.btn--ghost { border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn--ghost:hover { background: var(--gold); border-color: var(--gold); color: #1b1f24; }

.btn--sm { height: 38px; padding: 0 18px; font-size: 13.5px; }
.btn--lg { height: 52px; padding: 0 38px; font-size: 15.5px; }

.btn .arr { transition: transform .3s ease; }
.btn:hover .arr { transform: translateX(4px); }

/* 文字型更多链接 */
.more-link { display: inline-flex; align-items: center; gap: 6px; color: var(--text-3); font-size: 14px; }
.more-link:hover { color: var(--gold-d); gap: 10px; }

/* ---------------------------------------------------------------- 4 顶部信息条 */
.topbar {
    background: var(--dark);
    color: rgba(255, 255, 255, .62);
    font-size: 13px;
    line-height: 38px;
    height: 38px;
    overflow: hidden;
}

.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.topbar-left { display: flex; align-items: center; gap: 26px; min-width: 0; }
.topbar-item { display: inline-flex; align-items: center; gap: 7px; white-space: nowrap; }
.topbar-item svg { width: 14px; height: 14px; fill: var(--gold); flex: none; }
.topbar-item a:hover { color: var(--gold); }
.topbar-right { display: flex; align-items: center; gap: 10px; flex: none; }
.topbar-right a:hover { color: var(--gold); }
.topbar-right .on { color: var(--gold); }

/* ---------------------------------------------------------------- 5 头部 + 导航 */
.header {
    position: relative;
    z-index: 600;
    background: #fff;
    border-bottom: 1px solid var(--line);
}

/* 吸顶：由 main.js 的 initSticky() 在滚动过头部时添加；
   用 class 而不是逐个写内联样式，避免每次滚动都重排重绘 */
.header.is-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    box-shadow: 0 4px 18px rgba(33, 37, 41, .09);
}

/* 吸顶占位块：保持文档流高度，防止内容跳动 */
.header-holder { display: none; }

.header-inner {
    display: flex;
    align-items: center;
    gap: 28px;
    height: 92px;
}

.logo { flex: none; display: flex; align-items: center; gap: 12px; }
.logo img { height: 46px; width: auto; display: block; }

/* 品牌文字块：logo 图形 + 公司名（上行）/ 标语（下行，灰色） */
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text b { font-size: 22px; font-weight: 700; color: var(--text); letter-spacing: 2.5px; }
.logo-text .logo-slogan { font-size: 12px; letter-spacing: .5px; color: var(--text-3); margin-top: 7px; }

.nav { flex: 1; min-width: 0; }
.nav-list { display: flex; align-items: center; justify-content: flex-end; }

.menu-item { position: relative; }

.menu-link {
    display: flex;
    align-items: center;
    gap: 5px;
    height: 92px;
    padding: 0 19px;
    font-size: 15.5px;
    font-weight: 600;
    color: var(--text);
    position: relative;
}

.menu-link::after {
    content: "";
    position: absolute;
    left: 19px;
    right: 19px;
    bottom: 0;
    height: 3px;
    background: var(--gold);
    transform: scaleX(0);
    transition: transform .3s ease;
}

.menu-item:hover > .menu-link,
.menu-item.cur > .menu-link { color: var(--gold-d); }
.menu-item:hover > .menu-link::after,
.menu-item.cur > .menu-link::after { transform: scaleX(1); }

.menu-link .arrow {
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    opacity: .5;
    margin-top: 3px;
}

/* ---- 二级下拉 ---- */
.sub-list {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 208px;
    background: #fff;
    box-shadow: 0 10px 30px rgba(33, 37, 41, .13);
    border-top: 3px solid var(--gold);
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transition: var(--t);
}

.menu-item:hover > .sub-list { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

.sub-list .menu-item > .menu-link {
    height: auto;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-2);
    justify-content: space-between;
}

.sub-list .menu-item > .menu-link::after { display: none; }
.sub-list .menu-item > .menu-link:hover { background: var(--bg-alt); color: var(--gold-d); padding-left: 26px; }

/* ---- 三级 / 大面板 ---- */
.menu-item.mega { position: static; }

.menu-item.mega > .sub-list {
    left: 0;
    right: 0;
    width: 100%;
    max-width: var(--wrap);
    margin: 0 auto;
    transform: translateY(10px);
    padding: 30px 30px 12px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 0 18px;
}

.menu-item.mega:hover > .sub-list { transform: translateY(0); }

.menu-item.mega > .sub-list > .menu-item > .menu-link {
    height: auto;
    padding: 0 0 12px;
    font-size: 15.5px;
    font-weight: 700;
    color: var(--text);
    border-bottom: 1px solid var(--line);
    margin-bottom: 10px;
    justify-content: flex-start;
}

.menu-item.mega > .sub-list > .menu-item > .menu-link:hover { background: none; color: var(--gold-d); padding-left: 0; }

.sub-list-3 { padding-bottom: 18px; }

.sub-list-3 .menu-link {
    display: block;
    height: auto;
    padding: 7px 0;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-3);
}

.sub-list-3 .menu-link::after { display: none; }
.sub-list-3 .menu-link:hover { color: var(--gold-d); padding-left: 5px; }

.header-cta { display: flex; align-items: center; gap: 14px; flex: none; }

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.nav-toggle span { display: block; width: 19px; height: 2px; background: var(--text); transition: var(--t); }

/* ---------------------------------------------------------------- 6 移动端抽屉 */
.mobile-mask {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .5);
    opacity: 0;
    visibility: hidden;
    transition: var(--t);
    z-index: 900;
}

.mobile-mask.on { opacity: 1; visibility: visible; }

.mobile-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 320px;
    max-width: 86vw;
    background: #fff;
    z-index: 950;
    transform: translateX(100%);
    transition: transform .35s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-panel.on { transform: translateX(0); }

.mobile-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--line);
}

.mobile-panel-head img { height: 34px; }

.mobile-close {
    border: 0;
    background: none;
    font-size: 28px;
    line-height: 1;
    color: var(--text-3);
    cursor: pointer;
    padding: 0 4px;
}

.mobile-nav > li > a,
.mobile-sub > li > a,
.mobile-sub-3 > li > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 20px;
    border-bottom: 1px solid var(--line);
    font-size: 15px;
    color: var(--text);
}

.mobile-sub > li > a { padding-left: 36px; font-size: 14px; color: var(--text-2); }
.mobile-sub-3 > li > a { padding-left: 52px; font-size: 13.5px; color: var(--text-3); }
.mobile-nav .m-arrow { transition: transform .3s ease; font-size: 12px; color: var(--text-3); padding: 14px 4px 14px 22px; margin: -14px 0; }
.mobile-nav li.open > a > .m-arrow { transform: rotate(180deg); }
.mobile-sub, .mobile-sub-3 { display: none; background: var(--bg-alt); }
.mobile-slot { padding: 22px 20px 40px; background: var(--bg-alt); font-size: 13.5px; color: var(--text-3); }
.mobile-slot b { color: var(--text); display: block; margin-top: 10px; }
.mobile-slot b:first-child { margin-top: 0; }

/* ---------------------------------------------------------------- 7 首页轮播 */
.hero { position: relative; overflow: hidden; background: #d7e7f3; }

.hero-slides { position: relative; height: 620px; }

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity .8s ease, visibility .8s ease;
}

.hero-slide.on { opacity: 1; visibility: visible; }

.hero-slide .bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center bottom;
    transform: scale(1.06);
    transition: transform 6.5s linear;
}

.hero-slide.on .bg { transform: scale(1); }

/* 首屏第一张：它在 HTML 里就带 .on，浏览器首帧渲染时 transform 已经是终态 scale(1)，
   属性值没有发生过变化，因此 6.5s 的 transition 不会被触发（首进首页看不到缩放动画）。
   这里单独用 animation 播一次同样的缩小效果；轮播再切回第一张时会重新播放，
   与其它各张的过渡观感保持一致。后续切换的 slide 仍走上面的 transition。 */
.hero-slide.on:first-child .bg { animation: heroZoom 6.5s linear both; }

@keyframes heroZoom {
    from { transform: scale(1.06); }
    to { transform: scale(1); }
}

/* 顶部浅色光晕，保证深色标语在明亮背景上可读 */
.hero-slide::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, .55) 0%, rgba(255, 255, 255, .22) 32%, rgba(255, 255, 255, 0) 58%);
}

.hero-slide .wrap {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    text-align: center;
    padding-top: 64px;
}

.hero-copy { max-width: 880px; margin: 0 auto; color: #143a5e; }

/* 红丝带标签（参考行业站轮播样式） */
.hero-copy .tag {
    display: inline-block;
    position: relative;
    padding: 6px 26px;
    border-radius: 3px;
    background: linear-gradient(135deg, #e8452f, #ff6a3d);
    color: #fff;
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: 3px;
    margin-bottom: 18px;
    box-shadow: 0 4px 14px rgba(232, 69, 47, .35);
}

.hero-copy .tag::before,
.hero-copy .tag::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 34px;
    height: 1px;
    background: rgba(20, 58, 94, .35);
}

.hero-copy .tag::before { left: -46px; }
.hero-copy .tag::after { right: -46px; }

.hero-copy h1 {
    font-size: 54px;
    color: #143a5e;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: 3px;
    text-shadow: 0 2px 26px rgba(255, 255, 255, .9), 0 1px 3px rgba(255, 255, 255, .6);
}

.hero-copy p { font-size: 16.5px; color: #2e4d68; margin: 0 auto 32px; max-width: 620px; text-shadow: 0 1px 12px rgba(255, 255, 255, .85); }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

.hero-copy .btn--ghost { border-color: rgba(20, 58, 94, .4); color: #143a5e; background: rgba(255, 255, 255, .78); }

/* 进场：从下方浮入 */
.hero-slide.on .hero-copy .tag { animation: heroUp .7s .05s both; }
.hero-slide.on .hero-copy h1 { animation: heroUp .7s .18s both; }
.hero-slide.on .hero-copy p { animation: heroUp .7s .30s both; }
.hero-slide.on .hero-btns { animation: heroUp .7s .42s both; }

@keyframes heroUp {
    from { opacity: 0; transform: translateY(34px); }
    to { opacity: 1; transform: none; }
}

.hero-arrow {
    position: absolute;
    top: 50%;
    margin-top: -26px;
    width: 52px;
    height: 52px;
    border: 1px solid rgba(20, 58, 94, .18);
    background: rgba(255, 255, 255, .82);
    color: #143a5e;
    border-radius: 50%;
    cursor: pointer;
    z-index: 4;
    transition: var(--t);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    line-height: 1;
}

.hero-arrow:hover { background: var(--gold); border-color: var(--gold); color: #1b1f24; }
.hero-arrow.prev { left: 30px; }
.hero-arrow.next { right: 30px; }

.hero-dots {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 30px;
    z-index: 4;
    display: flex;
    justify-content: center;
    gap: 11px;
}

.hero-dots i {
    width: 32px;
    height: 3px;
    background: rgba(20, 58, 94, .3);
    cursor: pointer;
    transition: var(--t);
    display: block;
}

.hero-dots i.on { background: var(--gold); width: 48px; }

/* 轮播下方的快捷入口条 */
.hero-bar { position: relative; z-index: 5; margin-top: -46px; }

.hero-bar ul {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: #fff;
    box-shadow: var(--shadow);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.hero-bar li + li { border-left: 1px solid var(--line); }

.hero-bar a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 24px 26px;
    height: 100%;
}

.hero-bar a:hover { background: var(--bg-alt); }
.hero-bar svg { width: 30px; height: 30px; fill: var(--gold); flex: none; }
.hero-bar b { display: block; font-size: 16px; color: var(--text); }
.hero-bar .hb-sub { font-size: 12.5px; color: var(--text-3); }

/* ---------------------------------------------------------------- 8 滚动进场 */
[data-reveal] { opacity: 0; transform: translateY(34px); transition: opacity .7s ease, transform .7s ease; }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal="left"] { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal="left"].in, [data-reveal="right"].in { transform: none; }
[data-reveal="zoom"] { transform: scale(.94); }
[data-reveal="zoom"].in { transform: none; }

@media (prefers-reduced-motion: reduce) {
    [data-reveal] { opacity: 1 !important; transform: none !important; }
    .hero-slide .bg { transition: none; }
    .hero-slide.on:first-child .bg { animation: none; }
}

/* ---------------------------------------------------------------- 9 关于我们 + 数字 */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-pic { position: relative; }
.about-pic img { width: 100%; display: block; border-radius: var(--radius-sm); position: relative; z-index: 2; }

.about-pic::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 26px;
    right: 22px;
    bottom: -22px;
    background: var(--bg-alt2);
    border-radius: var(--radius-sm);
}

.about-pic .badge {
    position: absolute;
    right: -18px;
    bottom: -18px;
    z-index: 3;
    background: var(--gold);
    color: #1b1f24;
    padding: 18px 24px;
    border-radius: var(--radius-sm);
    text-align: center;
    line-height: 1.2;
}

.about-pic .badge b { display: block; font-size: 30px; }
.about-pic .badge span { font-size: 12.5px; }

.about-text .sec-head { margin-bottom: 24px; }
.about-text p { color: var(--text-3); margin-bottom: 16px; }

.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 26px; margin: 26px 0 32px; }
.about-points li { display: flex; align-items: flex-start; gap: 9px; font-size: 14.5px; color: var(--text-2); }
.about-points li::before {
    content: "";
    flex: none;
    width: 6px;
    height: 6px;
    margin-top: 9px;
    background: var(--gold);
    border-radius: 50%;
}

/* 统计条 */
.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--dark);
    color: #fff;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.stats li { padding: 42px 26px; text-align: center; position: relative; }
.stats li + li::before { content: ""; position: absolute; left: 0; top: 32px; bottom: 32px; width: 1px; background: rgba(255, 255, 255, .13); }
.stats b { display: block; font-size: 44px; color: var(--gold); line-height: 1; font-weight: 700; }
.stats b small { font-size: 18px; margin-left: 3px; }
.stats span { display: block; margin-top: 10px; font-size: 14px; color: rgba(255, 255, 255, .7); }

/* ---------------------------------------------------------------- 10 产品 Tab + 卡片 */
.tabs { display: flex; justify-content: center; gap: 0; flex-wrap: wrap; margin-bottom: 42px; }

.tabs button, .tabs a {
    height: 44px;
    padding: 0 26px;
    border: 1px solid var(--line);
    border-left: 0;
    background: #fff;
    color: var(--text-2);
    font-size: 14.5px;
    cursor: pointer;
    transition: var(--t);
    font-family: inherit;
    display: inline-flex;
    align-items: center;
}

.tabs > *:first-child { border-left: 1px solid var(--line); }
.tabs .on, .tabs a.on { background: var(--gold); border-color: var(--gold); color: #1b1f24; font-weight: 600; }
.tabs .on + *, .tabs a.on + * { border-left-color: var(--gold); }

.tab-panel { display: none; }
.tab-panel.on { display: block; animation: fadeUp .5s both; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

.pgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
/* Tab 面板内的产品网格：高优先级保障，防止其他样式把网格改回 block 导致卡片堆叠成一列 */
.tab-panel .pgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }

.pcard {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--t);
    display: block;
}

.pcard:hover { border-color: transparent; box-shadow: var(--shadow-h); transform: translateY(-6px); }
.pcard .pic { display: block; overflow: hidden; background: var(--bg-alt); aspect-ratio: 1 / 1; }
.pcard .pic img { width: 100%; height: 100%; object-fit: contain; padding: 8px; box-sizing: border-box; display: block; transition: transform .6s ease; }
.pcard .info { padding: 13px 20px 15px; }
.pcard:hover .pic img { transform: scale(1.07); }
.pcard .name { display: block; font-size: 16px; font-weight: 700; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: center; transition: color .25s ease; }
.pcard:hover .name { color: var(--gold-d); }

/* ---------------------------------------------------------------- 11 核心优势 */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }

.adv {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 38px 30px 34px;
    transition: var(--t);
    position: relative;
    overflow: hidden;
}

.adv::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .4s ease; }
.adv:hover { box-shadow: var(--shadow-h); transform: translateY(-6px); border-color: transparent; }
.adv:hover::after { transform: scaleX(1); }
.adv svg { width: 42px; height: 42px; fill: var(--gold); margin-bottom: 20px; }
.adv h3 { font-size: 18px; margin-bottom: 12px; }
.adv p { font-size: 13.5px; color: var(--text-3); margin: 0; }

/* 深色背景下的优势卡 */
.section--dark .adv { background: var(--dark-2); border-color: rgba(255, 255, 255, .07); }
.section--dark .adv p { color: rgba(255, 255, 255, .55); }

/* ---------------------------------------------------------------- 12 应用领域网格 */
.app-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }

.app {
    position: relative;
    display: block;
    border-radius: var(--radius-sm);
    overflow: hidden;
    min-height: 190px;
    background: var(--dark-2);
    transition: var(--t);
}

.app img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; opacity: .82; }
.app:hover img { transform: scale(1.09); opacity: 1; }
.app .mask { position: absolute; inset: 0; background: linear-gradient(to top, rgba(20, 24, 28, .88) 6%, rgba(20, 24, 28, .18) 100%); transition: var(--t); }
.app:hover .mask { background: linear-gradient(to top, rgba(255, 191, 3, .9) 6%, rgba(20, 24, 28, .3) 100%); }

.app .txt { position: absolute; left: 0; right: 0; bottom: 20px; padding: 0 20px; color: #fff; z-index: 2; }
.app .txt b { display: block; font-size: 16.5px; }
.app .txt span { font-size: 12px; letter-spacing: 1.4px; text-transform: uppercase; opacity: .62; }
.app:hover .txt, .app:hover .txt b { color: #1b1f24; }

/* ---------------------------------------------------------------- 13 产品系列（滚动图文行） */
.series { display: grid; gap: 22px; }

.series-row {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 34px;
    align-items: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 26px 34px;
    transition: var(--t);
}

.series-row:hover { box-shadow: var(--shadow); border-color: transparent; }
.series-row:nth-child(even) { grid-template-columns: 1fr 260px; }
.series-row:nth-child(even) .series-head { order: 2; }
.series-row:nth-child(even) .series-body { order: 1; }

.series-head h3 { font-size: 22px; margin-bottom: 6px; }
.series-head .en { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); font-weight: 700; }
.series-head p { font-size: 13.5px; color: var(--text-3); margin: 12px 0 0; }

.series-body { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.sitem {
    display: block;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #fff;
    transition: var(--t);
}

.sitem:hover { border-color: var(--gold); transform: translateY(-4px); box-shadow: var(--shadow); }
.sitem .pic { aspect-ratio: 1 / 1; overflow: hidden; background: var(--bg-alt); display: block; }
.sitem .pic img { width: 100%; height: 100%; object-fit: contain; padding: 8px; box-sizing: border-box; transition: transform .6s ease; }
.sitem:hover .pic img { transform: scale(1.08); }
.sitem .nm { display: block; padding: 12px 14px; font-size: 13.5px; color: var(--text); text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sitem:hover .nm { color: var(--gold-d); }

/* ---------------------------------------------------------------- 14 服务支持 */
.srv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

.srv {
    display: flex;
    gap: 20px;
    padding: 34px 30px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    transition: var(--t);
}

.srv:hover { border-color: transparent; box-shadow: var(--shadow-h); transform: translateY(-5px); }
.srv .ico { flex: none; width: 54px; height: 54px; border-radius: 50%; background: var(--gold-l); display: flex; align-items: center; justify-content: center; transition: var(--t); }
.srv:hover .ico { background: var(--gold); }
.srv .ico svg { width: 26px; height: 26px; fill: var(--gold-d); transition: var(--t); }
.srv:hover .ico svg { fill: #1b1f24; }
.srv h3 { font-size: 17.5px; margin-bottom: 8px; }
.srv p { font-size: 13.5px; color: var(--text-3); margin: 0; }

/* ---------------------------------------------------------------- 15 新闻 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }

.ncard { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; display: flex; flex-direction: column; transition: var(--t); }
.ncard:hover { border-color: transparent; box-shadow: var(--shadow-h); transform: translateY(-6px); }
.ncard .pic { aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-alt); display: block; position: relative; }
.ncard .pic img { width: 100%; height: 100%; object-fit: contain; padding: 8px; box-sizing: border-box; transition: transform .6s ease; }
.ncard:hover .pic img { transform: scale(1.07); }

.ncard .date {
    position: absolute;
    left: 16px;
    top: 16px;
    background: rgba(27, 31, 36, .82);
    color: #fff;
    text-align: center;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    line-height: 1.15;
    transition: var(--t);
}

.ncard:hover .date { background: var(--gold); color: #1b1f24; }
.ncard .date b { display: block; font-size: 20px; }
.ncard .date span { font-size: 11.5px; }

.ncard .info { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.ncard h3 { font-size: 17px; line-height: 1.5; margin-bottom: 10px; height: 51px; overflow: hidden; }
.ncard .txt { font-size: 13.5px; color: var(--text-3); height: 44px; overflow: hidden; margin-bottom: 16px; }
.ncard .go { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); font-size: 13px; color: var(--text-3); display: flex; align-items: center; justify-content: space-between; }

/* 新闻列表页的行式条目 */
.nlist { display: grid; gap: 18px; }

.nrow {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 24px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--t);
}

.nrow:hover { box-shadow: var(--shadow); border-color: transparent; }
.nrow .pic { overflow: hidden; background: var(--bg-alt); aspect-ratio: 16 / 10; }
.nrow .pic img { width: 100%; height: 100%; object-fit: contain; padding: 8px; box-sizing: border-box; transition: transform .6s ease; }
.nrow:hover .pic img { transform: scale(1.06); }
.nrow .info { padding: 24px 26px 24px 0; display: flex; flex-direction: column; }
.nrow h3 { font-size: 18px; margin-bottom: 10px; }
.nrow .txt { font-size: 13.5px; color: var(--text-3); margin-bottom: 14px; }
.nrow .meta { margin-top: auto; font-size: 12.5px; color: var(--text-3); display: flex; gap: 20px; }

/* ---------------------------------------------------------------- 16 底部 CTA */
.cta { background: var(--dark); position: relative; overflow: hidden; }
.cta::before { content: ""; position: absolute; right: -120px; top: -120px; width: 460px; height: 460px; background: rgba(255, 191, 3, .07); border-radius: 50%; }
.cta .wrap { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; padding-top: 56px; padding-bottom: 56px; }
.cta h2 { color: #fff; font-size: 32px; margin-bottom: 12px; }
.cta p { color: rgba(255, 255, 255, .62); margin: 0; font-size: 15px; }
.cta-btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- 17 页脚 */
.footer { background: var(--dark-2); color: rgba(255, 255, 255, .56); padding-top: 66px; font-size: 13.5px; }
.footer a { color: rgba(255, 255, 255, .56); }
.footer a:hover { color: var(--gold); }

.footer-main { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 44px; padding-bottom: 50px; }

.footer-brand .logo { gap: 12px; }
.footer-brand .logo img { height: 44px; margin-bottom: 0; }
.footer-brand .logo-text b { color: #fff; font-size: 20px; letter-spacing: 2px; }
.footer-brand .logo-text .logo-slogan { color: rgba(255, 255, 255, .45); }
.footer-brand p { color: rgba(255, 255, 255, .48); font-size: 13px; margin: 16px 0 0; }

.footer h4 { color: #fff; font-size: 16px; margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.footer h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px; background: var(--gold); }

.footer-links li { margin-bottom: 10px; }
.footer-links li a { display: inline-flex; align-items: center; gap: 6px; }
.footer-links li a::before { content: ""; width: 4px; height: 4px; background: rgba(255, 255, 255, .3); border-radius: 50%; flex: none; transition: var(--t); }
.footer-links li a:hover::before { background: var(--gold); width: 8px; border-radius: 2px; }

.footer-contact li { display: flex; gap: 10px; margin-bottom: 14px; align-items: flex-start; }
.footer-contact svg { width: 15px; height: 15px; fill: var(--gold); flex: none; margin-top: 5px; }
.footer-contact b { color: #fff; font-size: 19px; display: block; }

.footer-qr { display: flex; gap: 18px; margin-top: 20px; }
.footer-qr figure { margin: 0; text-align: center; }
.footer-qr img { width: 86px; height: 86px; object-fit: contain; box-sizing: border-box; background: #fff; padding: 5px; border-radius: var(--radius-sm); }
.footer-qr figcaption { font-size: 12px; margin-top: 7px; color: rgba(255, 255, 255, .45); }

.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .09); padding: 20px 0; font-size: 12.5px; color: rgba(255, 255, 255, .42); }
.footer-bottom .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-bottom a { color: rgba(255, 255, 255, .42); }
.footer-bottom a:hover { color: var(--gold); }

/* ---------------------------------------------------------------- 18 内页 */
.page-banner {
    position: relative;
    height: 300px;
    background: var(--dark);
    overflow: hidden;
    display: flex;
    align-items: center;
}

.page-banner .bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .42; }
.page-banner::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(20, 24, 28, .8), rgba(20, 24, 28, .3)); }
.page-banner .wrap { position: relative; z-index: 2; color: #fff; }
.page-banner h1 { color: #fff; font-size: 36px; margin-bottom: 8px; }
.page-banner .en { font-size: 13px; letter-spacing: 3px; text-transform: uppercase; color: rgba(255, 255, 255, .5); }

.crumb { background: var(--bg-alt); border-bottom: 1px solid var(--line); font-size: 13.5px; line-height: 52px; }
.crumb .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.crumb .path { display: flex; align-items: center; gap: 9px; color: var(--text-3); flex-wrap: wrap; }
.crumb .path a:hover { color: var(--gold-d); }
.crumb .path .sep { color: #c7ccd2; }
.crumb .back a { display: inline-flex; align-items: center; gap: 6px; color: var(--text-3); }
.crumb .back a:hover { color: var(--gold-d); }

.layout { display: grid; grid-template-columns: 268px minmax(0, 1fr); gap: 44px; align-items: start; }

/* layout 下依次是：侧栏导航、联系卡片、主内容 —— 显式定位，主栏恒占右侧整列 */
.layout > .side { grid-column: 1; grid-row: 1; }
.layout > .side-box { grid-column: 1; grid-row: 2; }
.layout > .main { grid-column: 2; grid-row: 1 / span 2; min-width: 0; }

/* 侧栏 */
.side { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.side-head { background: var(--dark); color: #fff; padding: 22px 24px; }
.side-head b { font-size: 18px; display: block; }
.side-head span { font-size: 11.5px; letter-spacing: 2px; text-transform: uppercase; color: rgba(255, 255, 255, .45); }

.side-nav li a { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; border-bottom: 1px solid var(--line); font-size: 14.5px; color: var(--text-2); }
.side-nav li a:hover { background: var(--bg-alt); color: var(--gold-d); padding-left: 30px; }
.side-nav li.on > a { background: var(--gold-l); color: var(--gold-d); font-weight: 600; border-left: 3px solid var(--gold); padding-left: 21px; }
.side-nav .sub a { padding-left: 40px; font-size: 13.5px; color: var(--text-3); }

.side-box { margin-top: 26px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.side-box-head { padding: 16px 20px; border-bottom: 1px solid var(--line); font-weight: 700; color: var(--text); font-size: 15.5px; }
.side-box-body { padding: 20px; font-size: 13.5px; color: var(--text-3); }
.side-box-body .tel { color: var(--gold-d); font-size: 20px; font-weight: 700; display: block; margin-bottom: 12px; }
.side-box-body .qr { width: 110px; display: block; margin: 0 auto 10px; }

/* 正文内容 */
.article { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 40px 46px 46px; }
.article-head { border-bottom: 1px solid var(--line); padding-bottom: 22px; margin-bottom: 30px; }
.article-head h1 { font-size: 27px; margin-bottom: 14px; line-height: 1.45; }
.article-meta { display: flex; gap: 22px; flex-wrap: wrap; font-size: 13px; color: var(--text-3); }
.article-body { font-size: 15px; line-height: 1.95; color: var(--text-2); }
.article-body img { max-width: 100%; height: auto; margin: 14px 0; border-radius: var(--radius-sm); }
.article-body h2, .article-body h3 { margin: 28px 0 14px; }
.article-body p { margin-bottom: 18px; }
.article-body ul, .article-body ol { margin: 0 0 18px; padding-left: 22px; list-style: revert; }
.article-body li { margin-bottom: 8px; }
.article-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 11px 14px; }
.article-body th { background: var(--bg-alt); color: var(--text); font-weight: 700; }

/* 产品详情 */
.prod-top { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; margin-bottom: 46px; }

.gallery-main { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; background: #fff; aspect-ratio: 4 / 3; }
.gallery-main img { width: 100%; height: 100%; object-fit: contain; display: block; }
.gallery-thumbs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-top: 12px; }
.gallery-thumbs button { border: 1px solid var(--line); background: #fff; padding: 0; cursor: pointer; border-radius: var(--radius-sm); overflow: hidden; aspect-ratio: 1; transition: var(--t); }
.gallery-thumbs button.on { border-color: var(--gold); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: contain; padding: 4px; box-sizing: border-box; }

.prod-info h1 { font-size: 28px; margin-bottom: 14px; line-height: 1.4; }
.prod-info .lead { font-size: 14.5px; color: var(--text-3); line-height: 1.9; margin-bottom: 26px; }

/* 产品技术参数表 */
.spec-box { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 24px; }
.spec-title { background: var(--dark); color: #fff; font-size: 14px; font-weight: 600; padding: 11px 18px; letter-spacing: .5px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.spec-table th, .spec-table td { border-bottom: 1px solid var(--line); padding: 10px 18px; text-align: left; }
.spec-table th { background: var(--bg-alt); width: 38%; color: var(--text-3); font-weight: 400; }
.spec-table td { color: var(--text); font-weight: 600; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }

/* 详情页上下篇 */
.prev-next { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; margin-top: 30px; border-top: 1px solid var(--line); font-size: 13.5px; flex-wrap: wrap; }
.prev-next a { color: var(--text-3); max-width: 46%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.prev-next a:hover { color: var(--gold-d); }

/* 分页 */
.pagebreak { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 46px; flex-wrap: wrap; }
.pagebreak a, .pagebreak span {
    min-width: 40px;
    height: 40px;
    padding: 0 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    font-size: 14px;
    color: var(--text-2);
}
.pagebreak a:hover { border-color: var(--gold); color: var(--gold-d); }
.pagebreak .cur { background: var(--gold); border-color: var(--gold); color: #1b1f24; font-weight: 700; }
.pagebreak .info { border: 0; background: none; color: var(--text-3); font-size: 13px; }

/* 空状态 */
.empty { text-align: center; padding: 80px 20px; color: var(--text-3); }
.empty svg { width: 72px; height: 72px; fill: #dfe4e9; margin-bottom: 16px; }

/* ---------------------------------------------------------------- 19 浮动与回到顶部 */
.to-top {
    position: fixed;
    right: 26px;
    bottom: 26px;
    width: 46px;
    height: 46px;
    border: 0;
    border-radius: var(--radius-sm);
    background: var(--dark);
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--t);
    z-index: 500;
    box-shadow: var(--shadow);
}

.to-top.on { opacity: 1; visibility: visible; }
.to-top:hover { background: var(--gold); color: #1b1f24; }

.float-bar { position: fixed; right: 26px; bottom: 92px; z-index: 500; display: grid; gap: 10px; }
.float-bar a, .float-bar button {
    width: 46px;
    height: 46px;
    border: 0;
    border-radius: var(--radius-sm);
    background: var(--dark);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--t);
}
.float-bar svg { width: 21px; height: 21px; fill: #fff; }
.float-bar a:hover, .float-bar button:hover { background: var(--gold); }
.float-bar a:hover svg, .float-bar button:hover svg { fill: #1b1f24; }

/* ---------------------------------------------------------------- 20 响应式 */
@media (max-width: 1600px) {
    .hero-slides { height: 580px; }
}

@media (max-width: 1440px) {
    .wrap { padding: 0 26px; }
    .menu-link { padding: 0 15px; font-size: 15px; }
    .hero-copy h1 { font-size: 46px; }
}

@media (max-width: 1280px) {
    .header-inner { gap: 16px; }
    .menu-link { padding: 0 11px; font-size: 14.5px; }
    .header-cta .btn { display: none; }
    .pgrid, .tab-panel .pgrid, .adv-grid { grid-template-columns: repeat(3, 1fr); }
    .app-grid { grid-template-columns: repeat(4, 1fr); }
    .series-body { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 1024px) {
    .nav, .header-cta .btn, .topbar-left .hide-md { display: none; }
    .nav-toggle { display: flex; }
    .header-inner { height: 72px; justify-content: space-between; }
    .logo img { height: 38px; }
    .logo-text b { font-size: 18px; letter-spacing: 1.5px; }
    .logo-text .logo-slogan { font-size: 11px; }

    .section { padding: 62px 0; }
    .sec-head h2 { font-size: 27px; }
    .sec-head { margin-bottom: 34px; }

    .hero-slides { height: 480px; }
    .hero-copy h1 { font-size: 34px; }
    .hero-copy p { font-size: 14.5px; margin-bottom: 24px; }
    .hero-arrow { display: none; }

    .hero-bar ul { grid-template-columns: repeat(2, 1fr); }
    .hero-bar li:nth-child(3), .hero-bar li:nth-child(4) { border-top: 1px solid var(--line); }
    .hero-bar li:nth-child(3) { border-left: 0; }

    .about-grid { grid-template-columns: 1fr; gap: 44px; }
    .about-pic::before { display: none; }
    .about-pic .badge { right: 12px; bottom: 12px; }

    .stats { grid-template-columns: repeat(2, 1fr); }
    .stats li:nth-child(3)::before { display: none; }
    .stats li:nth-child(3), .stats li:nth-child(4) { border-top: 1px solid rgba(255, 255, 255, .13); }

    .pgrid, .tab-panel .pgrid, .adv-grid { grid-template-columns: repeat(2, 1fr); }
    .app-grid { grid-template-columns: repeat(3, 1fr); }
    .srv-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }

    .series-row, .series-row:nth-child(even) { grid-template-columns: 1fr; gap: 20px; padding: 24px; }
    .series-row:nth-child(even) .series-head { order: 1; }
    .series-row:nth-child(even) .series-body { order: 2; }
    .series-body { grid-template-columns: repeat(2, 1fr); }

    /* 手机端隐藏内页左侧栏，主栏占满整行 */
    .layout { grid-template-columns: 1fr; gap: 0; }
    .layout > .side, .layout > .side-box { display: none; }
    .layout > .main { grid-column: 1; grid-row: auto; }
    .prod-top { grid-template-columns: 1fr; gap: 30px; }
    .article { padding: 28px 24px 32px; }
    .article-head h1 { font-size: 22px; }
    .nrow { grid-template-columns: 190px 1fr; }

    .footer-main { grid-template-columns: repeat(2, 1fr); gap: 34px; }
    .page-banner { height: 230px; }
    .page-banner h1 { font-size: 27px; }

    /* 轮播居中标语的窄屏适配 */
    .hero-slide .wrap { padding-top: 44px; }
    .hero-copy .tag { padding: 5px 18px; letter-spacing: 2px; }
    .hero-copy .tag::before, .hero-copy .tag::after { display: none; }
    .hero-copy h1 { letter-spacing: 1.5px; }
}

@media (max-width: 768px) {
    .wrap { padding: 0 18px; }
    body { font-size: 13.5px; }

    /* 小屏头部空间有限，只保留公司名 */
    .logo-slogan { display: none; }

    .topbar { display: none; }
    .hero-slides { height: 400px; }
    .hero-copy h1 { font-size: 26px; }
    .hero-dots { bottom: 18px; }
    .hero-bar { margin-top: -22px; }
    .hero-bar a { padding: 13px 12px; gap: 9px; }
    .hero-bar svg { width: 22px; height: 22px; }
    .hero-bar b { font-size: 13.5px; }
    .hero-bar .hb-sub { font-size: 11px; }

    .section { padding: 38px 0; }
    .sec-head { margin-bottom: 22px; }
    .sec-head h2 { font-size: 22px; }
    .sec-head .en { font-size: 11.5px; letter-spacing: 2px; }
    .sec-head--split { align-items: flex-start; }

    /* ---- 手机版瘦身：单列大图会把页面拉得非常长，这里统一改两列并压缩留白 ---- */
    .pgrid, .tab-panel .pgrid, .adv-grid, .series-body { grid-template-columns: repeat(2, 1fr); gap: 12px; }

    /* ---- 服务支持：6 张横排卡改「两列 · 图标在上」的紧凑卡 ---- */
    .srv-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .srv { flex-direction: column; align-items: center; text-align: center; padding: 14px 11px 13px; gap: 8px; }
    .srv .ico { width: 34px; height: 34px; margin: 0 auto; }
    .srv .ico svg { width: 18px; height: 18px; }
    .srv h3 { font-size: 13.5px; margin-bottom: 4px; }
    .srv p { font-size: 11.5px; line-height: 1.7; }
    .srv:hover { transform: none; }

    /* ---- 新闻资讯：大图卡改「左图右文」横向紧凑卡，去掉摘要外的冗余行 ---- */
    .news-grid { grid-template-columns: 1fr; gap: 12px; }
    .ncard { flex-direction: row; align-items: stretch; }
    .ncard:hover { transform: none; box-shadow: none; }
    .ncard .pic { width: 116px; flex: none; aspect-ratio: 4 / 3; }
    .ncard .pic img { padding: 5px; }
    .ncard .date { left: 6px; top: 6px; padding: 3px 7px; }
    .ncard .date b { font-size: 13px; }
    .ncard .date span { font-size: 9.5px; }
    .ncard .info { padding: 10px 12px 11px; display: block; }
    .ncard h3 { font-size: 14px; line-height: 1.5; height: 42px; margin-bottom: 4px; }
    /* 摘要保留，但改用「两行截断 + 省略号」，避免固定高度把第二行截成半行 */
    .ncard .txt {
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        height: auto;
        font-size: 12px;
        line-height: 1.7;
        margin-bottom: 0;
    }
    .ncard .go { display: none; }

    .pcard .pic { aspect-ratio: 4 / 3; }
    .pcard .info { padding: 9px 8px 11px; }
    .pcard .name { font-size: 13px; }
    .pcard:hover { transform: none; box-shadow: none; }

    .adv { padding: 16px 13px 14px; }
    .adv svg { width: 28px; height: 28px; margin-bottom: 10px; }
    .adv h3 { font-size: 14.5px; margin-bottom: 7px; }
    .adv p { font-size: 12px; line-height: 1.75; }
    .adv:hover { transform: none; }

    .series-row { padding: 18px 16px; gap: 18px; }
    .series-head h3 { font-size: 18px; }
    .series-head p { font-size: 12.5px; margin-top: 8px; }
    .sitem .nm { padding: 8px 6px; font-size: 12px; }


    .app-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .app { min-height: 116px; }
    .app .txt { bottom: 12px; padding: 0 12px; }
    .app .txt b { font-size: 14px; }
    .app .txt span { font-size: 11px; }

    .about-points { display: none; }
    .stats li { padding: 28px 16px; }
    .stats b { font-size: 32px; }

    .tabs { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
    .tabs button, .tabs a { flex: none; padding: 0 18px; }

    .article { padding: 22px 18px 26px; }
    .nrow { grid-template-columns: 1fr; }
    .nrow .info { padding: 18px 20px 22px; }
    .article-body { font-size: 14px; }

    .cta .wrap { padding-top: 40px; padding-bottom: 40px; }
    .cta h2 { font-size: 22px; }
    .footer-main { grid-template-columns: repeat(2, 1fr); gap: 22px 18px; padding-bottom: 34px; }
    /* 品牌块独占一行，快速导航与产品与服务并排一行，联系方式独占一行 */
    .footer-brand, .footer-contact { grid-column: 1 / -1; }
    .footer h4 { margin-bottom: 12px; }
    .footer-links li { margin-bottom: 6px; }
    .footer-qr { flex-wrap: wrap; gap: 10px; }
    .footer { padding-top: 44px; }

    .to-top { right: 14px; bottom: 14px; width: 42px; height: 42px; }
    .float-bar { display: none; }
}

/* ==========================================================================
   新闻专用模板样式（News_List / News_Detail）
   ========================================================================== */

/* ---------- 新闻列表：左右图文交替 ---------- */
.news-list2 { display: flex; flex-direction: column; gap: 26px; }
.news-item {
    display: flex; align-items: stretch;
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
    overflow: hidden; transition: var(--t);
}
.news-item:hover { border-color: var(--gold); box-shadow: 0 14px 34px rgba(27, 31, 36, .09); }
.news-item .npic { width: 40%; flex: none; overflow: hidden; background: var(--bg-alt); aspect-ratio: 16 / 9; }
.news-item .npic img { width: 100%; height: 100%; object-fit: contain; padding: 8px; box-sizing: border-box; display: block; transition: transform .6s ease; }
.news-item:hover .npic img { transform: scale(1.05); }
.news-item .ninfo { flex: 1; min-width: 0; display: flex; flex-direction: column; justify-content: flex-start; padding: 30px 38px 24px; }
.news-item .ntitle { font-size: 20px; font-weight: 700; color: var(--text); line-height: 1.45; margin: 0 0 14px; }
.news-item:hover .ntitle { color: var(--gold-d); }
.news-item .ntxt { font-size: 14px; color: var(--text-3); line-height: 1.9; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; border-top: 1px dashed var(--line); padding-top: 14px; }
.news-item .nmeta { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 12px; font-size: 12.5px; color: var(--text-3); }
.news-item .nmore { color: var(--gold-d); font-weight: 600; opacity: 0; transform: translateX(-6px); transition: var(--t); }
.news-item:hover .nmore { opacity: 1; transform: none; }
/* 偶数行：图右文左 + 浅灰底 */
.news-item:nth-child(even) { flex-direction: row-reverse; background: var(--bg-alt); }
.news-item:nth-child(even) .npic { background: var(--bg-alt2); }

/* ---------- 新闻详情：正文卡 + 更多新闻边栏 ---------- */
.nd-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 30px; align-items: start; }
.nd-main { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 40px 46px 34px; }
.nd-head { text-align: center; border-bottom: 1px solid var(--line); padding-bottom: 24px; margin-bottom: 30px; }
.nd-head h1 { font-size: 26px; font-weight: 700; color: var(--text); line-height: 1.5; margin: 0; }
.nd-meta { margin-top: 14px; font-size: 13px; color: var(--text-3); }
.nd-side { background: var(--bg-alt); border-radius: var(--radius-sm); padding: 24px 24px 18px; position: sticky; top: 104px; }
.nd-side-title { font-size: 17px; font-weight: 700; color: var(--text); padding-bottom: 14px; margin-bottom: 4px; border-bottom: 2px solid var(--gold); }
ul.nd-side-list { list-style: none; margin: 0; padding: 0; }
.nd-side-list li { padding: 13px 0; border-bottom: 1px dashed var(--line); }
.nd-side-list li:last-child { border-bottom: 0; }
.nd-side-list a { display: block; font-size: 14px; color: var(--text); line-height: 1.55; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nd-side-list a:hover { color: var(--gold-d); }
.nd-side-date { display: block; margin-top: 4px; font-size: 12px; color: var(--text-3); }
.nd-side-empty { margin: 14px 0 6px; font-size: 13px; color: var(--text-3); }
.nd-side-more { display: block; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); text-align: center; font-size: 13px; color: var(--gold-d); font-weight: 600; }

@media (max-width: 1024px) {
    .nd-grid { grid-template-columns: minmax(0, 1fr) 260px; }
    .nd-main { padding: 30px 28px 26px; }
}
@media (max-width: 768px) {
    .news-item, .news-item:nth-child(even) { flex-direction: column; background: #fff; }
    .news-item .npic { width: 100%; }
    .news-item .ninfo { padding: 18px 18px 20px; }
    .news-item .ntitle { font-size: 16.5px; }
    .news-item .ntxt { -webkit-line-clamp: 3; }
    .nd-grid { grid-template-columns: 1fr; }
    .nd-main { padding: 24px 18px 22px; }
    .nd-head h1 { font-size: 20px; }
    .nd-side { position: static; }
}

/* ============================================================
   产品列表页（Product_List）—— 参考leespower产品列表版式
   ============================================================ */
.plist-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.plist-card {
    display: block; background: #fff; border: 1px solid var(--line);
    border-radius: var(--radius-sm); overflow: hidden; transition: var(--t);
}
.plist-card:hover { border-color: transparent; box-shadow: var(--shadow-h); transform: translateY(-6px); }
/* 等比缩放、完整显示原图（cover 会裁掉一部分）；图框取 1:1 以贴合后台上传的方形产品图，减少留白 */
.plist-pic { display: block; overflow: hidden; background: var(--bg-alt); aspect-ratio: 1 / 1; }
.plist-pic img { width: 100%; height: 100%; object-fit: contain; padding: 10px; box-sizing: border-box; display: block; transition: transform .6s ease; }
.plist-card:hover .plist-pic img { transform: scale(1.07); }
.plist-name {
    display: block; padding: 14px 16px 16px; text-align: center;
    font-size: 15.5px; font-weight: 700; color: var(--text);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    border-top: 2px solid transparent; transition: var(--t);
}
.plist-card:hover .plist-name { border-top-color: var(--gold); color: var(--gold-d); }

/* ============================================================
   产品内容页（Product_Detail）—— 参考leespower产品详情版式
   ============================================================ */
.pdetail { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 40px 46px 34px; }
.pdetail-top { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 46px; align-items: stretch; }
.pdetail-info { display: flex; flex-direction: column; align-items: stretch; gap: 18px; }
.pdetail-main {
    border: 1px solid var(--line); background: var(--bg-alt);
    aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
}
.pdetail-main img { max-width: 90%; max-height: 90%; object-fit: contain; }
.pdetail-thumbs { display: flex; gap: 12px; margin-top: 14px; }
.pdetail-thumbs .thumb {
    flex: 1; aspect-ratio: 4 / 3; overflow: hidden; cursor: pointer; padding: 0;
    border: 1px solid var(--line); background: var(--bg-alt);
    display: flex; align-items: center; justify-content: center; transition: var(--t);
}
.pdetail-thumbs .thumb img { max-width: 86%; max-height: 86%; object-fit: contain; }
.pdetail-thumbs .thumb.on, .pdetail-thumbs .thumb:hover { border-color: var(--gold); }
.pdetail-name { font-size: 30px; font-weight: 700; color: var(--text); line-height: 1.45; margin: 0; }
.pdetail-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.pdetail-tags .tag {
    display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px;
    border: 1px solid var(--line); background: #fff;
    font-size: 13.5px; font-weight: 600; color: var(--text); white-space: nowrap;
}
.pdetail-tags .tag i { width: 8px; height: 8px; background: var(--gold); transform: rotate(45deg); flex: none; }
.pdivider { width: 42px; height: 3px; background: var(--gold); margin: 12px 0 10px; }
.pdetail-lead { font-size: 14.5px; line-height: 1.85; color: var(--text-2); white-space: pre-line; }
.pdetail-industry { margin-top: auto; }
.pdetail-industry .pi-head {
    display: flex; align-items: center; gap: 9px; font-size: 17px; font-weight: 700;
    color: var(--text); padding-bottom: 12px; border-bottom: 1px solid var(--line);
}
.pdetail-industry .pi-head svg { width: 19px; height: 19px; fill: var(--gold); flex: none; }
.pdetail-industry .pi-list { display: flex; flex-wrap: wrap; margin-top: 4px; }
.pdetail-industry .pi-list span { font-size: 14px; color: var(--text-2); padding: 10px 26px 4px 0; }
.pdetail-contact { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; margin-top: auto; }
.pdetail-contact .btn {
    display: inline-flex; align-items: center; gap: 9px;
    padding: 13px 40px; background: var(--gold); color: #1b1f24;
    font-size: 15px; font-weight: 600; border-radius: 3px; transition: var(--t);
}
.pdetail-contact .btn svg { width: 17px; height: 17px; fill: currentColor; }
.pdetail-contact .btn:hover { background: var(--gold-d); transform: translateY(-2px); }
.pdetail-contact .tel { display: inline-flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; color: var(--gold-d); }
.pdetail-contact .tel svg { width: 20px; height: 20px; fill: currentColor; }
.pdetail-body { margin-top: 42px; padding-top: 36px; border-top: 1px solid var(--line); }
.pdetail-body-title { position: relative; font-size: 20px; font-weight: 700; color: var(--text); padding-left: 14px; margin-bottom: 24px; }
.pdetail-body-title::before { content: ""; position: absolute; left: 0; top: 5px; width: 4px; height: 18px; background: var(--gold); border-radius: 2px; }

@media (max-width: 1024px) {
    .plist-grid { grid-template-columns: repeat(3, 1fr); }
    .pdetail { padding: 30px 28px 26px; }
    .pdetail-top { grid-template-columns: 1fr; gap: 28px; }
    .pdetail-main { max-width: 560px; }
    .pdetail-name { font-size: 26px; }
}
@media (max-width: 768px) {
    .plist-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .plist-name { font-size: 14px; padding: 11px 10px 13px; }
    .pdetail { padding: 24px 18px 22px; }
    .pdetail-name { font-size: 21px; }
    .pdetail-tags { gap: 8px; }
    .pdetail-tags .tag { padding: 8px 12px; font-size: 12.5px; }
    .pdetail-thumbs { gap: 8px; }
    .pdetail-contact { gap: 14px; }
    .pdetail-contact .btn { flex: 1; justify-content: center; }
    .pdetail-contact .tel { font-size: 19px; }
}

/* ---------------------------------------------------------------- 空数据占位 */
.empty-tip { display: block; padding: 48px 20px; text-align: center; font-size: 14.5px; color: var(--text-3); }