/* ========================================================================
   淄博赛能新材料科技有限公司 - 企业官网
   视觉参考: http://demo.s123456789.com/x317/ (亮蓝 #0c7df5 · 白底 · 深色页脚)
   ======================================================================== */

:root {
    --primary: #0c7df5;
    --primary-dark: #0a6ad1;
    --primary-light: #3d97ff;
    --accent: #0c7df5;
    --dark: #222222;
    --darker: #1a1a1a;
    --panel: #1f1f1f;
    --gray-100: #f7f7f7;
    --gray-200: #e8e8e8;
    --gray-300: #e1e1e1;
    --gray-600: #999999;
    --gray-700: #666666;
    --gray-900: #333333;
    --white: #ffffff;
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.05);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.09);
    --shadow-lg: 0 14px 40px rgba(0,0,0,0.14);
    --blue-shadow: 0 8px 24px rgba(12,125,245,0.28);
    --transition: all .3s ease;
}

/* ===== 基础重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", Arial, sans-serif; font-size: 14px; color: var(--gray-900); line-height: 1.7; background: #fff; }
body { overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, li { list-style: none; }
img { max-width: 100%; vertical-align: middle; border: 0; }
button { border: 0; background: none; cursor: pointer; font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ========================================================================
   头部导航（首页悬浮于 Banner 上，内页/滚动后白底）
   ======================================================================== */
.header {
    position: absolute;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: 82px;
    transition: var(--transition);
    color: #fff;
}
.header .nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

/* Logo */
.logo { display: flex; align-items: center; gap: 12px; color: inherit; flex-shrink: 0; }
.logo-mark { display: flex; color: var(--primary); align-items: center; width: 56px; }
.logo-mark img { display: block; height: 62px; width: auto; max-width: 220px; object-fit: contain; }

.logo-text { min-width: 0; }
.logo-text strong { display: block; font-size: 28px; letter-spacing: 2px; line-height: 1.25; }
.logo-text em {
    display: block; font-style: normal; font-size: 12px; letter-spacing: 1.5px; opacity: .75;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* 主导航 */
.main-nav ul { display: flex; align-items: center; gap: 6px; }
.main-nav a {
    display: block;
    padding: 8px 16px;
    font-size: 16px;
    color: inherit;
    position: relative;
    white-space: nowrap;
}
.main-nav a::after {
    content: "";
    position: absolute;
    left: 16px; right: 16px; bottom: 2px;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform .3s ease;
}
.main-nav li.active a, .main-nav a:hover { color: var(--primary); }
.main-nav li.active a::after, .main-nav a:hover::after { transform: scaleX(1); }

/* 顶部电话 */
.header-phone { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.hp-icon {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--blue-shadow);
}
.hp-num { font-size: 18px; font-weight: bold; letter-spacing: .5px; }

/* 滚动后：白底深字 */
.header.is-scrolled {
    position: fixed;
    background: #fff;
    color: var(--gray-900);
    box-shadow: 0 2px 16px rgba(0,0,0,.08);
    animation: headerDrop .35s ease;
}
.header.is-scrolled .nav-inner { height: 70px; }
.header.is-scrolled .hp-num { color: var(--primary); }
@keyframes headerDrop { from { transform: translateY(-100%); } to { transform: translateY(0); } }

/* 内页：默认白底静态 */
body.is-inner .header { position: static; background: #fff; color: var(--gray-900); box-shadow: 0 1px 0 var(--gray-200); }
body.is-inner .hp-num { color: var(--primary); }

/* 移动端菜单按钮 */
.nav-toggle { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: currentColor; transition: var(--transition); }

/* ========================================================================
   右侧竖向悬浮栏
   ======================================================================== */
.side-float {
    position: fixed;
    right: 0; top: 38%;
    z-index: 90;
    width: 52px;
    background: rgba(30,30,30,.92);
    border-radius: 6px 0 0 6px;
    overflow: visible;
    box-shadow: var(--shadow-md);
}
.sf-item {
    position: relative;
    display: flex;
    width: 52px; height: 50px;
    align-items: center; justify-content: center;
    color: #b5b5b5;
    cursor: pointer;
    border-bottom: 1px solid rgba(255,255,255,.07);
}
.sf-item:last-child { border-bottom: 0; }
.sf-item:hover { background: var(--primary); color: #fff; }
.sf-pop {
    position: absolute;
    right: 64px; top: 50%;
    transform: translateY(-50%);
    background: #fff;
    padding: 14px 18px;
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
    white-space: nowrap;
    font-size: 16px;
    font-weight: bold;
    color: var(--primary);
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.sf-item:hover .sf-pop { opacity: 1; visibility: visible; }
.sf-pop small { display: block; font-size: 12px; font-weight: normal; color: var(--gray-600); margin-top: 4px; }
.sf-pop-wx img { width: 130px; height: 130px; display: block; }
.sf-pop-wx small { font-weight: normal; }
.sf-mobile-only { display: none; }
.sf-top { opacity: 0; pointer-events: none; transition: var(--transition); }
.sf-top.show { opacity: 1; pointer-events: auto; }

/* ========================================================================
   Banner 轮播
   ======================================================================== */
.banner { position: relative; height: 640px; overflow: hidden; }
.banner-slide {
    position: absolute; inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: scale(1.06);
    transition: opacity 1s ease, transform 6.5s linear;
}
.banner-slide.is-active { opacity: 1; transform: scale(1); }
.banner-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(100deg, rgba(8,16,36,.62) 0%, rgba(8,16,36,.30) 42%, rgba(8,16,36,.05) 70%);
    pointer-events: none;
}
.banner-content {
    position: absolute;
    top: 50%;
    left: 0; right: 0;
    transform: translateY(-50%);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
    color: #fff;
    text-align: left;
    z-index: 6;
}
.bc-en {
    font-size: 16px;
    letter-spacing: 8px;
    font-weight: bold;
    color: #fff;
    text-transform: uppercase;
    margin-bottom: 22px;
}
.bc-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: 1px;
    text-shadow: 0 4px 22px rgba(0,0,0,.3);
}
.bc-title em { font-style: normal; color: var(--primary-light); }
.bc-desc {
    font-size: 17px;
    color: rgba(255,255,255,.9);
    line-height: 2;
    margin-top: 22px;
    letter-spacing: .5px;
    text-shadow: 0 2px 10px rgba(0,0,0,.3);
}
.bc-actions { display: flex; gap: 16px; margin-top: 38px; }
.btn-ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,.7);
}
.btn-ghost:hover { background: #fff; color: var(--primary-dark); }
.banner-dots {
    position: absolute;
    left: 0; right: 0; bottom: 26px;
    display: flex;
    justify-content: center;
    gap: 10px;
    z-index: 7;
}
.bd-item {
    width: 20px; height: 5px;
    border-radius: 3px;
    background: rgba(255,255,255,.4);
    cursor: pointer;
    transition: var(--transition);
}
.bd-item.is-active { background: var(--primary); width: 40px; }

.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px; height: 52px;
    border-radius: 50%;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.28);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 8;
    backdrop-filter: blur(8px);
    transition: all .3s ease;
    opacity: .7;
}
.banner-arrow svg { width: 24px; height: 24px; }
.banner-arrow:hover {
    opacity: 1;
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(12,125,245,.4);
}
.banner-prev { left: 34px; }
.banner-next { right: 34px; }

/* ========================================================================
   主打标语 + 三大特性卡
   ======================================================================== */
.idx-intro { padding: 30px 0 44px; background: #fff; }
.ii-title {
    text-align: center;
    font-size: 34px;
    color: var(--gray-900);
    letter-spacing: 2px;
    font-weight: 700;
    position: relative;
}
.ii-title::after {
    content: "";
    display: block;
    width: 66px; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    margin: 20px auto 0;
    border-radius: 3px;
    box-shadow: 0 3px 10px rgba(12,125,245,.3);
}
.ii-sub {
    text-align: center;
    font-size: 15px;
    color: var(--gray-600);
    margin-top: 14px;
    letter-spacing: 1px;
    position: relative;
}
.ii-sub::before, .ii-sub::after {
    content: "";
    display: inline-block;
    width: 34px; height: 1px;
    background: #dcdcdc;
    vertical-align: middle;
    margin: 0 12px;
}
.feat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 52px;
}
.feat-card {
    position: relative;
    border: 1px solid var(--gray-200);
    padding: 42px 34px 34px;
    text-align: center;
    overflow: hidden;
    transition: var(--transition);
    background: #fff;
}
.feat-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform .3s ease;
}
.feat-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-6px); }
.feat-card:hover::before { transform: scaleX(1); }
.ft-ico {
    width: 64px; height: 64px;
    margin: 0 auto 20px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(12,125,245,.10), rgba(12,125,245,.20));
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .35s ease;
    position: relative;
    z-index: 2;
}
.ft-ico svg { width: 30px; height: 30px; }
.feat-card:hover .ft-ico {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 8px 20px rgba(12,125,245,.35);
    transform: translateY(-3px) rotate(-4deg);
}
.ft-big {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(120deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-family: Arial, "Microsoft YaHei", sans-serif;
    line-height: 1.1;
    position: relative;
    z-index: 2;
}
.ft-big small { font-size: 20px; font-weight: normal; margin-left: 2px; }
.ft-name { font-size: 19px; font-weight: bold; color: var(--gray-900); margin-top: 14px; position: relative; z-index: 2; }
.ft-desc { font-size: 13px; color: #7a7a7a; margin-top: 12px; position: relative; z-index: 2; }
.ft-no {
    position: absolute;
    right: 22px; top: 8px;
    font-size: 54px;
    font-weight: bold;
    font-family: Arial, sans-serif;
    color: #efefef;
    line-height: 1;
    user-select: none;
    transition: var(--transition);
    z-index: 1;
}
.feat-card:hover .ft-no { color: rgba(12,125,245,.10); }

/* ========================================================================
   通用小节标题（蓝字 + 灰色英文）+ READ MORE
   ======================================================================== */
.sec-title {
    font-size: 28px;
    color: var(--gray-900);
    font-weight: 700;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 14px;
}
.sec-title::before {
    content: "";
    width: 6px; height: 26px;
    background: linear-gradient(180deg, var(--primary), var(--primary-light));
    border-radius: 3px;
    box-shadow: 0 2px 8px rgba(12,125,245,.3);
    flex-shrink: 0;
}
.sec-title span {
    font-size: 14px;
    color: #b0b0b0;
    font-weight: normal;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
    padding-left: 14px;
}
.sec-title span::before {
    content: "";
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 1px; height: 14px;
    background: #d0d0d0;
}
.sec-title.is-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0;
}
.sec-title.is-center::before { display: none; }
.sec-title.is-center span {
    margin-left: 0;
    display: block;
    margin-top: 10px;
    padding-left: 0;
}
.sec-title.is-center span::before { display: none; }
.sec-title.is-center::after {
    content: "";
    width: 56px; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 3px;
    margin-top: 14px;
    box-shadow: 0 3px 10px rgba(12,125,245,.3);
}
.show-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 36px;
    flex-wrap: wrap;
    gap: 16px;
}
.read-more {
    display: inline-block;
    border: 1px solid #dcdcdc;
    color: #888;
    font-size: 13px;
    letter-spacing: 2px;
    padding: 10px 26px;
    transition: var(--transition);
    background: #fff;
}
.read-more:hover { background: var(--primary); border-color: var(--primary); color: #fff; }
.read-more.is-center-link { letter-spacing: 0; }

.btn { display: inline-block; padding: 12px 34px; font-size: 15px; font-weight: 600; border-radius: 30px; transition: var(--transition); letter-spacing: 1px; }
.btn-primary { background: linear-gradient(135deg, #1868d8, #0b4fb0); color: #fff; text-shadow: 0 1px 3px rgba(0,0,0,.22); box-shadow: 0 8px 24px rgba(9,80,178,.34); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); transform: translateY(-3px); box-shadow: 0 12px 30px rgba(12,125,245,.4); }
.btn-outline { border: 1px solid var(--primary); color: var(--primary); border-radius: 30px; }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
/* 修正：.content-card a（特异性 0,1,1）会把卡片内按钮文字染成主色，蓝底蓝字。
   这里用更高特异性的 .content-card .btn 强制让按钮文字保持应有颜色。 */
.content-card .btn,
.content-card .btn-primary { color: #fff;text-align: center; }
.content-card .btn-outline { color: var(--primary); }
.content-card .btn-outline:hover { color: #fff; }
.content-card .btn-blue { color: #fff; }
.btn-blue {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    padding: 12px 36px;
    margin-top: 26px;
    transition: var(--transition);
}
.btn-blue:hover { background: var(--primary-dark); box-shadow: var(--blue-shadow); }

/* ========================================================================
   应用案例三联展示（左分类 / 中图 / 右深色面板）
   ======================================================================== */
.idx-show { padding: 20px 0 70px; }
.idx-show .show-head { margin-bottom: 30px; }
.show-stage {
    display: grid;
    grid-template-columns: 240px 1fr 380px;
    min-height: 420px;
    background: #fff;
    border: 1px solid var(--gray-200);
}
.show-cats { border-right: 1px solid var(--gray-200); background: #fff; }
.show-cat {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 24px 22px;
    font-size: 15px;
    color: #555;
    border-bottom: 1px solid var(--gray-100);
    position: relative;
    transition: var(--transition);
    line-height: 1.4;
    min-height: 60px;
    overflow: hidden;
}
.show-cat .sc-num {
    font-family: 'DIN', Arial, sans-serif;
    font-size: 12px;
    font-weight: 700;
    color: #c0c0c0;
    letter-spacing: 1px;
    flex-shrink: 0;
    transition: var(--transition);
}
.show-cat .sc-label {
    flex: 1;
    min-width: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-all;
}
.show-cat::before {
    content: "";
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%) scaleY(0);
    width: 3px; height: 60%;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
    transition: transform .3s ease;
}
.show-cat:hover { color: var(--primary); padding-left: 28px; }
.show-cat.is-active { color: var(--primary); font-weight: bold; background: linear-gradient(90deg, rgba(12,125,245,.08), transparent); }
.show-cat.is-active::before { transform: translateY(-50%) scaleY(1); }
.show-cat.is-active .sc-num { color: var(--primary); }
.show-cat:hover .sc-num { color: var(--primary); }
.show-cat::after { display: none; }
.show-pics { position: relative; overflow: hidden; background: #f2f2f2; }
.show-pic {
    position: absolute; inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: scale(1.08);
    transition: opacity .7s ease, transform 1.6s ease;
    display: block;
}
.show-pic.is-active { opacity: 1; transform: scale(1); }
.show-panels {
    position: relative;
    background: linear-gradient(160deg, #242424 0%, #1a1a1a 100%);
    color: #fff;
    overflow: hidden;
}
.show-panel {
    position: absolute; inset: 0;
    padding: 54px 44px 66px;
    opacity: 0;
    transform: translateX(24px);
    transition: var(--transition);
    pointer-events: none;
}
.show-panel.is-active { opacity: 1; transform: translateX(0); pointer-events: auto; }
.show-panel h3 {
    font-size: 22px;
    line-height: 1.5;
    letter-spacing: .5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.show-panel p { font-size: 13px; color: #9a9a9a; line-height: 2; margin-top: 20px; max-height: 150px; overflow: hidden; }
.show-link {
    display: inline-block;
    margin-top: 24px;
    color: var(--primary-light);
    font-size: 13px;
    letter-spacing: 1px;
}
.show-link::after { content: " ›"; }
.show-link:hover { color: #fff; letter-spacing: 2px; }
.show-dots {
    position: absolute;
    right: 40px; bottom: 30px;
    display: flex; gap: 8px;
    z-index: 5;
}
.sd-dot { width: 9px; height: 9px; border-radius: 50%; background: #555; cursor: pointer; transition: var(--transition); }
.sd-dot.is-active { background: var(--primary); }

/* ========================================================================
   产品中心（首页）
   ======================================================================== */
.idx-products { padding: 40px 0; background: #fff; }
.idx-prod-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 22px;
}
.idx-prod-card {
    border: 1px solid var(--gray-200);
    background: #fff;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}
.idx-prod-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-6px); }
.ipc-img {
    height: 170px;
    background-size: cover;
    background-position: center;
    transition: transform .6s ease;
}
.idx-prod-card:hover .ipc-img { transform: scale(1.06); }
.ipc-body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.ipc-body h3 {
    font-size: 15px; line-height: 1.5; color: var(--gray-900);
    transition: color .3s ease;
}
.idx-prod-card:hover .ipc-body h3 { color: var(--primary); }
.ipc-body p {
    font-size: 12px;
    color: var(--gray-600);
    margin-top: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.ipc-more {
    display: inline-block;
    margin-top: 14px;
    color: var(--primary);
    font-size: 13px;
    font-weight: bold;
    transition: var(--transition);
}
.idx-prod-card:hover .ipc-more { letter-spacing: 1px; }

/* ========================================================================
   关于我们（水印 + 大数字）
   ======================================================================== */
.idx-about {
    position: relative;
    padding: 90px 0;
    background: #fff;
    overflow: hidden;
}
.ia-watermark {
    position: absolute;
    top: 40px; left: -30px;
    font-size: 190px;
    font-weight: bold;
    font-family: Arial, sans-serif;
    color: rgba(0,0,0,.028);
    letter-spacing: 10px;
    line-height: 1;
    user-select: none;
    pointer-events: none;
}
.ia-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 70px;
    align-items: center;
}
.ia-title b {
    display: block;
    font-size: 42px;
    color: var(--primary);
    font-family: Arial, sans-serif;
    letter-spacing: 4px;
    line-height: 1.1;
}
.ia-title span { display: inline-block; font-size: 26px; color: var(--gray-900); font-weight: bold; margin-top: 8px; padding-bottom: 16px; border-bottom: 2px solid var(--primary); }
.ia-left > p { font-size: 14px; color: var(--gray-700); line-height: 2; margin-top: 22px; text-align: justify; }
.ia-stats {
    display: flex;
    margin-top: 42px;
    padding-top: 34px;
    border-top: 1px solid var(--gray-200);
}
.ia-stat { flex: 1; text-align: left; }
.ia-stat + .ia-stat { padding-left: 26px; }
.ias-num { font-size: 44px; font-weight: bold; color: var(--primary); font-family: Arial, sans-serif; line-height: 1; white-space: nowrap; }
.ias-num i { font-style: normal; font-size: 20px; margin-left: 2px; }
.ias-label { font-size: 13px; color: var(--gray-600); margin-top: 8px; }
.ia-right { position: relative; }
.ia-img {
    height: 500px;
    background-size: cover;
    background-position: center;
    position: relative;
    z-index: 2;
    box-shadow: var(--shadow-lg);
}
.ia-right::before {
    content: "";
    position: absolute;
    right: -22px; bottom: -22px;
    width: 70%; height: 70%;
    background: repeating-linear-gradient(45deg, #eef4fd 0 6px, #fff 6px 12px);
    z-index: 1;
}
.ia-right::after {
    content: "";
    position: absolute;
    left: -22px; top: -22px;
    width: 120px; height: 120px;
    border-left: 3px solid var(--primary);
    border-top: 3px solid var(--primary);
    z-index: 1;
}

/* ========================================================================
   服务流程（圆环图标）
   ======================================================================== */
.idx-process { padding: 84px 0 90px; background: linear-gradient(180deg, #f8fbff 0%, #fff 100%); }
.proc-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 18px;
    margin-top: 54px;
}
.proc-item { text-align: center; }
.proc-ring {
    position: relative;
    width: 104px; height: 104px;
    margin: 0 auto;
    border: 1px solid var(--gray-300);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    background: #fff;
    transition: var(--transition);
}
.proc-ring::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: var(--primary);
    border-right-color: var(--primary);
    transform: rotate(-45deg);
    transition: var(--transition);
}
.proc-item:nth-child(odd) .proc-ring { background: linear-gradient(135deg, #f2f8ff, #fff); }
.proc-item:hover .proc-ring { box-shadow: var(--blue-shadow); transform: translateY(-6px); border-color: var(--primary); }
.proc-item:hover .proc-ring::before { transform: rotate(315deg); }
.proc-name { font-size: 15px; color: #444; margin-top: 18px; }

/* ========================================================================
   新闻资讯（Tab + 卡片）
   ======================================================================== */
.idx-news { padding: 10px 0 50px; background: var(--gray-100); }
.news-tabs { display: flex; gap: 10px; flex-wrap: wrap; }
.nt-btn {
    padding: 8px 22px;
    font-size: 14px;
    color: var(--gray-700);
    border-radius: 16px;
    transition: var(--transition);
}
.nt-btn:hover { color: var(--primary); }
.nt-btn.is-active { background: var(--primary); color: #fff; box-shadow: var(--blue-shadow); }
.idx-news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.idx-news-card {
    display: flex;
    background: #fff;
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: var(--transition);
}
.idx-news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--gray-200); }
.idx-news-card.is-hide { display: none; }
.inc-img { width: 220px; min-height: 158px; background-size: cover; background-position: center; flex-shrink: 0; transition: transform .6s ease; }
.idx-news-card:hover .inc-img { transform: scale(1.05); }
.inc-body { padding: 22px 24px 20px; display: flex; flex-direction: column; flex: 1; }

/* 新闻详情 */
.nd-title { font-size: 28px; font-weight: 700; color: var(--gray-900); line-height: 1.4; margin-bottom: 16px; }
.nd-cover { width: 100%; height: 380px; background-size: cover; background-position: center; border-radius: 8px; margin-bottom: 22px; }
.nd-meta { display: flex; flex-wrap: wrap; gap: 18px; padding-bottom: 18px; margin-bottom: 22px; border-bottom: 1px solid var(--gray-200); color: var(--gray-700); font-size: 13px; }
.nd-meta-item { display: inline-flex; align-items: center; gap: 6px; }
.nd-tag { padding: 3px 10px; background: #f0f6ff; color: var(--primary); border-radius: 4px; font-size: 12px; font-weight: 600; }
.nd-body { font-size: 16px; line-height: 1.9; color: var(--gray-900); }
.nd-body h3 { font-size: 19px; margin: 26px 0 12px; color: var(--gray-900); font-weight: 700; }
.nd-body p { margin-bottom: 14px; }
.nd-body ul, .nd-body ol { padding-left: 24px; margin-bottom: 14px; }
.nd-body li { margin-bottom: 6px; }
.nd-body strong { color: var(--primary-dark); }
.nd-nav { display: flex; gap: 16px; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--gray-200); }
.nd-nav-btn { flex: 1; display: flex; align-items: center; gap: 12px; padding: 14px 18px; background: #f8fafc; border-radius: 6px; transition: var(--transition); color: inherit; }
.nd-nav-btn:not(.is-disabled):hover { background: #f0f6ff; }
.nd-nav-btn.is-disabled { opacity: .5; pointer-events: none; }
.nd-nav-text { display: flex; flex-direction: column; gap: 4px; }
.nd-nav-text i { font-style: normal; font-size: 12px; color: var(--gray-600); }
.nd-nav-text b { font-weight: 600; color: var(--gray-900); font-size: 14px; }
.nd-nav-arrow { font-size: 18px; color: var(--gray-600); }
.nd-nav-right { flex-direction: row-reverse; text-align: right; }
.nd-actions { display: flex; gap: 14px; justify-content: center; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--gray-200); }
@media (max-width: 860px) {
    .nd-title { font-size: 22px; }
    .nd-cover { height: 220px; }
    .nd-nav { flex-direction: column; }
}
.inc-body h3 {
    font-size: 16px;
    color: var(--gray-900);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color .3s ease;
}
.idx-news-card:hover .inc-body h3 { color: var(--primary); }
.inc-body p {
    font-size: 13px;
    color: var(--gray-600);
    margin-top: 10px;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.inc-date {
    display: inline-block;
    align-self: flex-start;
    font-size: 12px;
    color: var(--gray-600);
    margin-top: 12px;
    padding: 3px 12px;
    background: var(--gray-100);
    border-radius: 12px;
    transition: var(--transition);
}
.idx-news-card:hover .inc-date { background: var(--primary); color: #fff; }
.idx-news-more { text-align: center; margin-top: 40px; }

/* ========================================================================
   深色联系区（页脚上部）+ 版权条
   ======================================================================== */
.footer-contact {
    background:
        radial-gradient(ellipse at 20% 20%, rgba(255,255,255,.03) 0, transparent 50%),
        radial-gradient(ellipse at 80% 90%, rgba(12,125,245,.08) 0, transparent 50%),
        #232323;
    color: #fff;
    padding: 72px 0 60px;
}
.fc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 90px;
}
.fc-head { display: flex; align-items: baseline; gap: 14px; }
.fc-head h2 { font-size: 26px; letter-spacing: 2px; }
.fc-head span { font-size: 14px; color: #6f6f6f; letter-spacing: 1px; }
.fc-name { font-size: 15px; margin: 28px 0 24px; color: #ddd; letter-spacing: 1px; }
.fc-body { display: flex; gap: 34px; align-items: flex-start; }
.fc-qr { background: #fff; padding: 8px; text-align: center; flex-shrink: 0; }
.fc-qr img { width: 108px; height: 108px; display: block; }
.fc-qr span { display: block; font-size: 12px; color: #888; margin-top: 5px; }
.fc-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: #9d9d9d;
    padding: 7px 0;
}
.fc-list li svg { color: var(--primary); flex-shrink: 0; }
.fc-list li a { color: #9d9d9d; white-space: nowrap; word-break: keep-all; }
.fc-list li a:hover { color: var(--primary); }
.fc-form { margin-top: 28px; }
.fc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.fc-form input, .fc-form textarea {
    width: 100%;
    background: transparent;
    border: 0;
    border-bottom: 1px solid #4a4a4a;
    color: #eee;
    font-size: 14px;
    padding: 13px 4px;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
    resize: none;
}
.fc-form input::placeholder, .fc-form textarea::placeholder { color: #777; }
.fc-form input:focus, .fc-form textarea:focus { border-bottom-color: var(--primary); }
.fc-form textarea { margin-top: 10px; }
.fc-submit {
    width: 100%;
    margin-top: 28px;
    background: var(--primary);
    color: #fff;
    font-size: 15px;
    letter-spacing: 6px;
    padding: 13px 0;
    transition: var(--transition);
}
.fc-submit:hover { background: var(--primary-dark); box-shadow: var(--blue-shadow); }

.footer-bar { background: #1a1a1a; padding: 20px 0; color: #777; }
.fb-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.fb-links a { font-size: 12px; color: #888; margin-right: 18px; }
.fb-links a:hover { color: #fff; }
.fb-left p { font-size: 12px; color: #5f5f5f; margin-top: 6px; }
.fb-left p a { color: #5f5f5f; }
.fb-left p a:hover { color: var(--primary); }
.fb-right { display: flex; gap: 10px; }
.fb-social {
    width: 34px; height: 34px;
    border-radius: 50%;
    border: 1px solid #3c3c3c;
    color: #999;
    display: flex;
    align-items: center;
    justify-content: center;
}
.fb-social:hover { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ========================================================================
   内页：页头横幅 / 面包屑 / 侧栏 / 内容
   ======================================================================== */
.page-header {
    position: relative;
    padding: 96px 0 70px;
    text-align: center;
    color: #fff;
    background:
        radial-gradient(ellipse 60% 90% at 15% 20%, rgba(255,255,255,.12) 0, transparent 55%),
        radial-gradient(ellipse 50% 80% at 85% 10%, rgba(120,205,255,.25) 0, transparent 50%),
        linear-gradient(115deg, rgba(8,24,58,.90) 0%, rgba(12,125,245,.62) 100%),
        url('/images/hero-1.png') center / cover no-repeat;
    overflow: hidden;
}
.page-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255,255,255,.10) 1px, transparent 1px);
    background-size: 26px 26px;
    opacity: .5;
}
.page-header::after {
    content: "";
    position: absolute;
    right: -70px; bottom: -90px;
    width: 320px; height: 320px;
    border: 42px solid rgba(255,255,255,.07);
    border-radius: 50%;
}
.page-header .ph-inner { position: relative; z-index: 2; }
.page-header h1 {
    font-size: 36px;
    letter-spacing: 6px;
    position: relative; z-index: 2;
    text-shadow: 0 4px 18px rgba(0,0,0,.3);
}
.page-header h1::after {
    content: "";
    display: block;
    width: 52px; height: 3px;
    background: var(--primary-light);
    margin: 18px auto 0;
    border-radius: 3px;
}
.page-header p {
    font-size: 13px;
    letter-spacing: 7px;
    opacity: .8;
    margin-top: 14px;
    position: relative; z-index: 2;
    text-transform: uppercase;
}

.breadcrumb {
    padding: 16px 0;
    background: #fff;
    border-bottom: 1px solid var(--gray-100);
}
.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--gray-600);
}
.breadcrumb a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--gray-600);
    transition: color .25s ease;
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #ccc; font-size: 12px; }
.breadcrumb .here { color: var(--primary); font-weight: 500; }

.page-wrap {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 28px;
    padding: 0px 0 70px;
    align-items: start;
}

/* 侧栏 */
.sidebar { position: sticky; top: 90px; display: flex; flex-direction: column; }
.sb-title {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    padding: 24px 24px;
    border-radius: 8px 8px 0 0;
}
.sb-title h3 { font-size: 18px; letter-spacing: 2px; }
.sb-title p { font-size: 11px; letter-spacing: 3px; opacity: .7; margin-top: 4px; }
.sb-list { background: #fff; border: 1px solid var(--gray-200); border-top: 0; }
.sb-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    font-size: 14px;
    color: #555;
    border-bottom: 1px solid var(--gray-100);
}
.sb-list li:last-child a { border-bottom: 0; }
.sb-list li a::after { content: "›"; color: #ccc; font-size: 16px; transition: var(--transition); }
.sb-list li a:hover { color: var(--primary); background: #f6faff; padding-left: 24px; }
.sb-list li.active a { color: var(--primary); font-weight: bold; background: #f6faff; }
.sb-list li.active a::after { color: var(--primary); }
.sb-side {
    margin-top: 22px;
    background: linear-gradient(150deg, #1b2a4a 0%, #0d1e3c 100%);
    color: #fff;
    border-radius: 8px;
    padding: 26px 22px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.sb-side::before {
    content: "";
    position: absolute;
    right: -30px; top: -30px;
    width: 110px; height: 110px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(12,125,245,.4), transparent 70%);
}
.sb-side .sbs-icon {
    width: 48px; height: 48px;
    margin: 0 auto;
    border-radius: 50%;
    background: var(--primary);
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--blue-shadow);
    position: relative;
    z-index: 2;
}
.sb-side .sbs-icon svg { width: 22px; height: 22px; }
.sb-side .sbs-label { font-size: 12px; color: rgba(255,255,255,.7); letter-spacing: 2px; margin-top: 14px; }
.sb-side .sbs-phone { font-size: 24px; font-weight: bold; margin-top: 6px; letter-spacing: 1px; }
.sb-side .sbs-contact { font-size: 12px; color: rgba(255,255,255,.65); margin-top: 8px; }
.sb-side .sbs-link {
    display: inline-block;
    margin-top: 16px;
    background: linear-gradient(135deg, #1868d8, #0b4fb0);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 9px 24px;
    border-radius: 20px;
    text-shadow: 0 1px 2px rgba(0,0,0,.2);
    transition: var(--transition);
}
.sb-side .sbs-link:hover { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }

/* 内容卡片 */
.content-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 38px;
    min-width: 0;
    box-shadow: 0 2px 16px rgba(0,0,0,.03);
}
.content-card h2 { font-size: 22px; color: var(--gray-900); padding-bottom: 14px; border-bottom: 1px solid var(--gray-100); }
.content-card h3 { font-size: 18px; color: var(--gray-900); margin: 30px 0 14px; padding-left: 12px; border-left: 3px solid var(--primary); }
.content-card p { font-size: 14px; color: #555; line-height: 2.1; margin: 12px 0; }
.content-card ul, .content-card ol { margin: 14px 0; }
.content-card ul li, .content-card ol li { font-size: 14px; color: #555; line-height: 2.1; margin-left: 22px; list-style: disc; }
.content-card ol li { list-style: decimal; }
.content-card strong { color: var(--gray-900); }
.content-card a { color: var(--primary); }
.content-card a:hover { text-decoration: underline; }
.content-card table { width: 100%; border-collapse: collapse; margin: 16px 0; border-radius: 6px; overflow: hidden; }
.content-card th, .content-card td { border: 1px solid var(--gray-200); padding: 12px 16px; font-size: 13px; color: #555; text-align: left; }
.content-card th { background: var(--gray-100); color: var(--gray-900); font-weight: 600; }
.content-card blockquote {
    background: #f6faff;
    border-left: 3px solid var(--primary);
    padding: 16px 20px;
    color: var(--gray-700);
    border-radius: 0 6px 6px 0;
    margin: 16px 0;
}

/* 通用 section（内页复用） */
.section { padding: 70px 0; }
.section.white { background: #fff; }
.section.gray { background: var(--gray-100); }
.section.dark { background: #1f2430; color: #fff; }
.section.dark .sh-cn, .section.dark .sh-desc { color: #fff; }
.section.dark .sh-desc { opacity: .6; }
.section-header { text-align: center; margin-bottom: 46px; }
.sh-en { font-size: 13px; font-weight: bold; letter-spacing: 7px; color: var(--primary); }
.sh-cn { font-size: 30px; letter-spacing: 3px; margin-top: 6px; color: var(--gray-900); }
.sh-desc { font-size: 14px; color: var(--gray-600); margin-top: 10px; }

/* 产品网格（内页） */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.product-card {
    border: 1px solid var(--gray-200);
    background: #fff;
    transition: var(--transition);
    display: block;
}
.product-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.pc-img {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 44px;
    background: linear-gradient(135deg, #f4f9ff 0%, #eaf3ff 100%);
}
.pc-img.is-photo {
    height: 170px;
    background-size: cover;
    background-position: center;
    font-size: 0;
}
.pc-info { padding: 20px 22px 24px; }
.pc-title { font-size: 17px; font-weight: bold; color: var(--gray-900); }
.product-card:hover .pc-title { color: var(--primary); }
.pc-desc {
    font-size: 13px;
    color: var(--gray-600);
    margin-top: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.pc-link { display: inline-block; margin-top: 14px; font-size: 13px; color: var(--primary); }

/* 应用网格（内页） */
.app-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.app-card {
    border: 1px solid var(--gray-200);
    background: #fff;
    padding: 34px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    transition: var(--transition);
}
.app-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--ic, var(--primary));
    transform: scaleX(0);
    transition: transform .3s ease;
}
.app-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(12,125,245,.06), transparent 60%);
    opacity: 0;
    transition: opacity .3s ease;
}
.app-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.app-card:hover::before { transform: scaleX(1); }
.app-card:hover::after { opacity: 1; }
.ac-svg {
    width: 74px; height: 74px;
    margin: 0 auto;
    border-radius: 50%;
    background: #eef4fd;
    background: color-mix(in srgb, var(--ic, var(--primary)) 10%, #fff);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ic, var(--primary));
    transition: var(--transition);
}
.app-card:hover .ac-svg {
    transform: scale(1.08);
    background: var(--ic, var(--primary));
    color: #fff;
    box-shadow: 0 8px 20px color-mix(in srgb, var(--ic, var(--primary)) 40%, transparent);
}
.ac-title { font-size: 16px; font-weight: bold; margin-top: 18px; color: var(--gray-900); }
.ac-desc { font-size: 13px; color: var(--gray-600); margin-top: 8px; text-align: justify; line-height: 1.8; }

/* 产品/内容详情专用 */
.pd-top { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; margin-bottom: 10px; }
.pd-gallery { display: flex; flex-direction: column; gap: 12px; }
.pd-hero {
    height: 320px;
    border-radius: 10px;
    background-size: cover;
    background-position: center;
    border: 1px solid var(--gray-200);
    transition: transform .5s ease;
}
.pd-hero:hover { transform: scale(1.01); }
.pd-thumbs { display: flex; gap: 10px; }
.pd-thumb {
    width: 74px; height: 60px;
    border-radius: 6px;
    background-size: cover;
    background-position: center;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}
.pd-thumb.is-active { border-color: var(--primary); }
.pd-thumb:hover { border-color: var(--primary); }
.pd-summary { display: flex; flex-direction: column; }
.pd-cat {
    display: inline-block;
    align-self: flex-start;
    background: #f0f6ff;
    color: var(--primary);
    font-size: 12px;
    padding: 4px 14px;
    border-radius: 14px;
    margin-bottom: 14px;
}
.pd-name { font-size: 26px; color: var(--gray-900); margin: 0 0 12px; }
.pd-brief { font-size: 14px; color: var(--gray-700); line-height: 1.9; margin: 0 0 20px; }
.pd-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 22px; }
.pd-spec { background: var(--gray-100); border-radius: 8px; padding: 12px 16px; }
.pd-spec span { display: block; font-size: 12px; color: var(--gray-600); margin-bottom: 4px; }
.pd-spec b { font-size: 15px; color: var(--gray-900); }
.pd-price {
    display: flex;
    align-items: baseline;
    gap: 10px;
    background: linear-gradient(135deg, #f0f6ff, #e6f1ff);
    border-radius: 8px;
    padding: 14px 18px;
    margin-bottom: 20px;
}
.pd-price span { font-size: 13px; color: var(--gray-600); }
.pd-price b { font-size: 28px; color: var(--primary); font-family: Arial, sans-serif; }
.pd-buy { margin-top: 6px; }
.pd-sec {
    font-size: 20px;
    color: var(--gray-900);
    border-left: 4px solid var(--primary);
    padding-left: 14px;
    margin: 36px 0 18px;
}
.pd-content { font-size: 15px; color: #444; line-height: 2.1; }
.pd-table { width: 100%; border-collapse: collapse; margin: 16px 0; border-radius: 8px; overflow: hidden; }
.pd-table th, .pd-table td { border: 1px solid var(--gray-200); padding: 13px 18px; font-size: 14px; text-align: left; }
.pd-table th { background: linear-gradient(135deg, #f0f6ff, #e9f2ff); color: var(--gray-900); width: 26%; font-weight: 600; }
.pd-table td { color: #555; }
.pd-hotline {
    margin-top: 30px;
    background: #f0f6ff;
    border: 1px solid #d8e9ff;
    border-radius: 12px;
    padding: 24px 26px;
    display: flex;
    align-items: center;
    gap: 20px;
}
.pd-hotline-icon {
    width: 54px; height: 54px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--blue-shadow);
}
.pd-hotline-text { flex: 1; display: flex; flex-direction: column; }
.pd-hotline-text span { font-size: 12px; color: var(--gray-600); }
.pd-hotline-text strong { font-size: 24px; color: var(--primary); letter-spacing: 1px; }
.pd-hotline-text small { font-size: 12px; color: var(--gray-600); margin-top: 2px; }

/* 相关产品推荐 */
.related-section { padding: 0 0 70px; }
.related-section .sec-title { margin-bottom: 26px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.related-card {
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}
.related-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-6px); }
.rc-img { height: 150px; background-size: cover; background-position: center; transition: transform .5s ease; }
.related-card:hover .rc-img { transform: scale(1.06); }
.rc-body { padding: 18px 20px 20px; }
.rc-body h3 { font-size: 15px; color: var(--gray-900); margin: 0 0 8px; transition: color .3s ease; }
.related-card:hover .rc-body h3 { color: var(--primary); }
.rc-body p {
    font-size: 12px;
    color: var(--gray-600);
    margin: 0;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.app-cta {
    margin-top: 30px;
    background: linear-gradient(135deg, #bcdcff, #3c90e9);
    color: #fff;
    border-radius: 12px;
    padding: 30px 34px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    position: relative;
    overflow: hidden;
}
.app-cta::before {
    content: "";
    position: absolute;
    right: -40px; top: -50px;
    width: 180px; height: 180px;
    border-radius: 50%;
    background: rgba(255,255,255,.1);
}
.app-cta-icon {
    width: 58px; height: 58px;
    flex-shrink: 0;
    border-radius: 50%;
    background: rgba(255,255,255,.18);
    display: flex; align-items: center; justify-content: center;
    position: relative; z-index: 2;
}
.app-cta-text { flex: 1; position: relative; z-index: 2; }
.app-cta-text h3 { font-size: 20px; margin: 0 0 6px; }
.app-cta-text p { font-size: 13px; opacity: .85; margin: 0; }
.app-cta .btn { background: #fff; color: var(--primary-dark); border-radius: 30px; }
.app-cta .btn:hover { background: #f0f6ff; transform: translateY(-3px); }

/* 新闻列表行（内页） */
.news-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 18px 6px;
    border-bottom: 1px dashed var(--gray-200);
    transition: var(--transition);
}
.news-item:hover { background: #fafcff; padding-left: 14px; }
.ni-date {
    flex-shrink: 0;
    text-align: center;
    font-size: 26px;
    font-weight: bold;
    color: var(--primary);
    font-family: Arial, sans-serif;
    line-height: 1.1;
}
.ni-date small { display: block; font-size: 12px; font-weight: normal; color: var(--gray-600); }
.ni-title { font-size: 15px; color: var(--gray-900); }
.news-item:hover .ni-title { color: var(--primary); }

/* 新闻列表卡片式（新版） */
.news-filter-tip {
    background: #f0f6ff;
    border: 1px solid #d8e9ff;
    color: var(--gray-700);
    font-size: 13px;
    padding: 12px 18px;
    border-radius: 8px;
    margin-bottom: 22px;
}
.news-filter-tip strong { color: var(--primary); }
.nf-clear { color: var(--primary); margin-left: 10px; }
.nf-clear:hover { text-decoration: underline; }
.news-list-wrap { display: flex; flex-direction: column; gap: 16px; }
.news-row {
    display: flex;
    gap: 22px;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
    transition: var(--transition);
}
.news-row:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.nr-img { width: 220px; min-height: 150px; background-size: cover; background-position: center; flex-shrink: 0; }
.nr-main { padding: 20px 22px; flex: 1; display: flex; flex-direction: column; }
.nr-top { display: flex; align-items: center; gap: 16px; }
.nr-date {
    flex-shrink: 0;
    text-align: center;
    line-height: 1;
    padding-right: 16px;
    border-right: 1px solid var(--gray-200);
}
.nr-date { font-size: 28px; font-weight: bold; color: var(--primary); font-family: Arial, sans-serif; }
.nr-date small { display: block; font-size: 12px; font-weight: normal; color: var(--gray-600); margin-top: 6px; }
.nr-top h3 { font-size: 17px; color: var(--gray-900); margin: 0; transition: color .3s ease; }
.news-row:hover .nr-top h3 { color: var(--primary); }
.nr-summary {
    font-size: 13px;
    color: var(--gray-600);
    margin: 12px 0 0;
    line-height: 1.9;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.nr-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; }
.nr-tag {
    background: #f0f6ff;
    color: var(--primary);
    font-size: 12px;
    padding: 4px 14px;
    border-radius: 14px;
}
.nr-more { font-size: 12px; color: var(--primary); font-weight: bold; }
.news-row:hover .nr-more { letter-spacing: 1px; }

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.pagination a, .pagination span {
    min-width: 38px;
    padding: 8px 13px;
    text-align: center;
    border: 1px solid var(--gray-300);
    color: #666;
    font-size: 13px;
}
.pagination a:hover { border-color: var(--primary); color: var(--primary); }
.pagination .active, .pagination span.current { background: var(--primary); border-color: var(--primary); color: #fff; }

/* 表单 */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; color: var(--gray-900); margin-bottom: 8px; }
.form-label i { color: #e74c3c; font-style: normal; margin-left: 2px; }
.form-control {
    width: 100%;
    border: 1px solid var(--gray-300);
    padding: 12px 14px;
    font-size: 14px;
    color: var(--gray-900);
    outline: none;
    transition: var(--transition);
    font-family: inherit;
    background: #fff;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(12,125,245,.12); }
textarea.form-control { min-height: 120px; resize: vertical; }
.form-submit {
    background: var(--primary);
    color: #fff;
    border: 0;
    font-size: 15px;
    letter-spacing: 4px;
    padding: 13px 46px;
    cursor: pointer;
    transition: var(--transition);
}
.form-submit:hover { background: var(--primary-dark); box-shadow: var(--blue-shadow); }

/* 淡入动画 */
.fade-in { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.fade-in.is-visible { opacity: 1; transform: translateY(0); }

/* 提示消息（flash） */
.flash-msg {
    max-width: 1200px;
    margin: 16px auto 0;
    padding: 13px 20px;
    font-size: 14px;
    border-radius: 3px;
}
.flash-msg.success { background: #e8f7ee; color: #1d9e55; border: 1px solid #bfe8d0; }
.flash-msg.error { background: #fdecec; color: #d64545; border: 1px solid #f5c6c6; }

/* 404 */
.error-page { text-align: center; padding: 100px 0; }
.error-page .code { font-size: 110px; font-weight: bold; color: var(--primary); font-family: Arial, sans-serif; line-height: 1; }
.error-page p { color: var(--gray-600); margin: 20px 0 30px; }

/* ========================================================================
   联系我们页
   ======================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    padding: 40px 0 70px;
}

.sec-head {
    margin-bottom: 22px;
    padding-bottom: 18px;
    border-bottom: 2px solid var(--gray-100);
    position: relative;
}
.sec-head::after {
    content: "";
    position: absolute;
    left: 0; bottom: -2px;
    width: 56px; height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
}
.sec-head h2 {
    font-size: 24px;
    color: var(--gray-900);
    font-weight: 700;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.sec-head h2::before {
    content: "";
    width: 5px; height: 22px;
    background: var(--primary);
    border-radius: 3px;
    box-shadow: 0 2px 8px rgba(12,125,245,.35);
}
.sec-head p {
    color: var(--gray-600);
    font-size: 14px;
    margin-top: 10px;
    padding-left: 17px;
}

.contact-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 22px;
}
.ci-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    padding: 22px 18px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    transition: all .3s ease;
    position: relative;
    overflow: hidden;
}
.ci-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 0; height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    transition: width .4s ease;
    z-index: 0;
}
.ci-card:hover {
    border-color: var(--primary);
    box-shadow: 0 12px 28px rgba(12,125,245,.18);
    transform: translateY(-4px);
}
.ci-card:hover::before { width: 4px; }
.ci-card:hover .ci-ico {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 6px 16px rgba(12,125,245,.35);
}
.ci-ico {
    width: 52px; height: 52px;
    flex-shrink: 0;
    background: linear-gradient(135deg, rgba(12,125,245,.10), rgba(12,125,245,.18));
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    transition: all .3s ease;
}
.ci-info {
    flex: 1;
    min-width: 0;
    position: relative;
    z-index: 1;
}
.ci-label {
    font-size: 12px;
    color: var(--gray-600);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.ci-val {
    font-size: 16px;
    color: var(--gray-900);
    font-weight: 600;
    margin-top: 6px;
    line-height: 1.4;
}
.ci-phone {
    color: var(--accent);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: .5px;
    font-family: 'DIN', Arial, sans-serif;
}
.ci-addr { font-size: 14px; font-weight: 500; }
.ci-tag {
    display: inline-block;
    margin-left: 6px;
    padding: 1px 8px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    color: #fff;
    font-size: 11px;
    font-weight: 500;
    border-radius: 10px;
    vertical-align: middle;
}
.ci-tag-light {
    display: inline-block;
    margin-left: 6px;
    padding: 1px 8px;
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: 11px;
    border-radius: 10px;
    vertical-align: middle;
}

.map-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(12,125,245,.06);
}
.map-head {
    padding: 18px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}
.map-head h3 {
    font-size: 17px;
    color: var(--gray-900);
    font-weight: 600;
}
.map-addr {
    font-size: 13px;
    color: var(--gray-600);
}
.map-body {
    height: 280px;
    position: relative;
    background:
        radial-gradient(circle at 30% 30%, rgba(12,125,245,.04) 0, transparent 60%),
        radial-gradient(circle at 70% 70%, rgba(12,125,245,.06) 0, transparent 50%),
        linear-gradient(135deg, #f3f7fc, #e3edf7);
    overflow: hidden;
}
.map-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(12,125,245,.12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(12,125,245,.12) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center;
}
.map-pin {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 40px; height: 40px;
}
.map-pulse {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: rgba(230,51,18,.25);
    animation: mapPulse 2s ease-out infinite;
}
.map-pulse-2 { animation-delay: 1s; }
.map-dot {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(230,51,18,.4);
}
@keyframes mapPulse {
    0% { transform: scale(.5); opacity: .8; }
    100% { transform: scale(2.4); opacity: 0; }
}
.map-marker {
    position: absolute;
    bottom: 18px;
    left: 18px;
    background: rgba(255,255,255,.96);
    border: 1px solid var(--gray-200);
    padding: 8px 16px;
    border-radius: 22px;
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 6px 18px rgba(0,0,0,.10);
    backdrop-filter: blur(6px);
}
.map-marker svg { color: var(--accent); }

.message-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 14px;
    padding: 32px 30px;
    box-shadow: 0 12px 36px rgba(12,125,245,.08);
    position: relative;
}
.message-card::before {
    content: "";
    position: absolute;
    top: 0; left: 30px; right: 30px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--primary));
    border-radius: 0 0 3px 3px;
}
.msg-success {
    display: flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(90deg, rgba(40,167,69,.08), rgba(40,167,69,.15));
    color: #155724;
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 22px;
    border-left: 4px solid #28a745;
    font-size: 14px;
}
.msg-success svg { color: #28a745; flex-shrink: 0; }

.msg-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.msg-form .form-group { margin-bottom: 18px; }
.msg-form .form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--gray-900);
    font-size: 14px;
    font-weight: 500;
}
.msg-form .req {
    color: var(--accent);
    margin-right: 3px;
    font-weight: bold;
}
.msg-form .form-control {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    background: #fafbfd;
    transition: all .25s ease;
    color: var(--gray-900);
}
.msg-form .form-control:hover { border-color: var(--primary-light); }
.msg-form .form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(12,125,245,.12);
}
.msg-form textarea.form-control {
    resize: vertical;
    min-height: 110px;
    font-family: inherit;
}
.form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 22px;
    flex-wrap: wrap;
    gap: 12px;
}
.form-submit {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 13px 32px;
    border: 0;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all .3s ease;
    box-shadow: 0 6px 18px rgba(12,125,245,.32);
}
.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(12,125,245,.42);
}
.form-submit:active { transform: translateY(0); }
.form-tip {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--gray-600);
}
.form-tip svg { color: var(--primary); }

/* 联系我们页：右侧表单下方「服务承诺」区块（对齐左侧地图卡片高度，消除留白） */
.promise-card {
    margin-top: 26px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 14px;
    padding: 22px 24px 20px;
    box-shadow: 0 12px 36px rgba(12,125,245,.08);
    position: relative;
}
.promise-card::before {
    content: "";
    position: absolute;
    top: 0; left: 24px; right: 24px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--primary));
    border-radius: 0 0 3px 3px;
}
.promise-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-100);
}
.promise-head strong {
    font-size: 16px;
    color: var(--gray-900);
    font-weight: 700;
}
.promise-head span {
    font-size: 12px;
    color: var(--gray-600);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.promise-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    list-style: none;
    margin: 0; padding: 0;
}
.promise-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 12px;
    border: 1px solid var(--gray-100);
    border-radius: 10px;
    background: linear-gradient(135deg, #fbfdff, #f6faff);
    transition: all .3s ease;
}
.promise-list li:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 24px rgba(12,125,245,.12);
    transform: translateY(-3px);
}
.pm-ico {
    width: 40px; height: 40px;
    flex-shrink: 0;
    background: linear-gradient(135deg, rgba(12,125,245,.10), rgba(12,125,245,.18));
    color: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.pm-info { min-width: 0; }
.pm-title {
    font-size: 14.5px;
    color: var(--gray-900);
    font-weight: 600;
    margin-bottom: 3px;
}
.pm-desc {
    font-size: 12px;
    color: var(--gray-600);
    line-height: 1.4;
}

@media (max-width: 1100px) {
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 860px) {
    /* 移动端段间距收紧：70px 在手机上过宽导致内容区空白过大 */
    .section { padding: 2px 0; }
    .contact-grid { padding: 0; }
    .contact-cards { grid-template-columns: 1fr; }
    .msg-form .form-row { grid-template-columns: 1fr; }
    .message-card { padding: 24px 18px; }
    .form-actions { flex-direction: column; align-items: stretch; }
    .form-submit { justify-content: center; }
    .form-tip { justify-content: center; }
    .promise-card { padding: 18px 16px 16px; margin-top: 20px; }
    .promise-list { grid-template-columns: 1fr; gap: 10px; }
    .promise-list li { padding: 12px 12px; }
}

/* ========================================================================
   关于我们页
   ======================================================================== */
.about-article { color: var(--gray-700); line-height: 2; font-size: 14.5px; }
.about-article p { margin-bottom: 16px; }
.about-article .hl { color: var(--gray-900); font-weight: 600; }
.about-article .hl-primary { color: var(--primary); font-weight: 600; }
.about-editable { line-height: 2; }
.about-editable h1, .about-editable h2 { font-size: 24px; color: var(--gray-900); margin: 0 0 18px; font-weight: 700; border-left: 4px solid var(--primary); padding-left: 14px; }
.about-editable h3 { font-size: 20px; color: var(--gray-900); margin: 30px 0 14px; font-weight: 700; }
.about-editable h4 { font-size: 17px; color: var(--gray-900); margin: 24px 0 12px; font-weight: 600; }
.about-editable p { margin-bottom: 16px; }
.about-editable ul, .about-editable ol { padding-left: 24px; margin-bottom: 16px; }
.about-editable li { margin-bottom: 6px; }
.about-editable img { max-width: 100%; height: auto; border-radius: 8px; margin: 12px 0; }
.about-editable blockquote { border-left: 4px solid var(--primary-light); background: #f6faff; padding: 14px 18px; margin: 16px 0; border-radius: 0 8px 8px 0; color: var(--gray-700); }
.about-editable a { color: var(--primary); }
.about-editable table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.about-editable table th, .about-editable table td { border: 1px solid var(--gray-200); padding: 10px 14px; text-align: left; font-size: 14px; }
.about-editable table th { background: #f0f6ff; }

.about-h3 {
    font-size: 20px;
    color: var(--gray-900);
    margin: 36px 0 14px;
    padding-left: 16px;
    position: relative;
    display: flex;
    align-items: center;
    font-weight: 700;
}
.about-h3 .dot {
    display: inline-block;
    width: 6px; height: 18px;
    background: linear-gradient(180deg, var(--primary), var(--primary-light));
    border-radius: 3px;
    margin-right: 12px;
    box-shadow: 0 2px 6px rgba(12,125,245,.3);
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 28px 0;
    padding: 28px;
    background: linear-gradient(135deg, #f6faff 0%, #eef4ff 100%);
    border-radius: 12px;
    border: 1px solid rgba(12,125,245,.12);
    position: relative;
    overflow: hidden;
}
.about-highlights::before {
    content: "";
    position: absolute;
    top: -40px; right: -40px;
    width: 140px; height: 140px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(12,125,245,.08) 0, transparent 70%);
}
.ah-item {
    text-align: center;
    position: relative;
}
.ah-item + .ah-item::before {
    content: "";
    position: absolute;
    left: -8px; top: 8px; bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, transparent, rgba(12,125,245,.2), transparent);
}
.ah-num {
    font-family: 'DIN', Arial, sans-serif;
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}
.ah-num small {
    font-size: 13px;
    color: var(--gray-600);
    font-weight: 500;
    font-family: 'Microsoft YaHei', sans-serif;
}
.ah-cap {
    margin-top: 6px;
    font-size: 13px;
    color: var(--gray-600);
    letter-spacing: 1px;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin: 22px 0 12px;
}
.val-item {
    background: #fff;
    border: 1.5px solid var(--gray-200);
    border-radius: 10px;
    padding: 22px 16px;
    text-align: center;
    transition: all .3s ease;
    position: relative;
    overflow: hidden;
}
.val-item::before {
    content: "";
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 0; height: 3px;
    background: var(--primary);
    transition: width .3s ease;
}
.val-item:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 24px rgba(12,125,245,.15);
    transform: translateY(-3px);
}
.val-item:hover::before { width: 100%; }
.val-no {
    display: block;
    font-family: 'DIN', Arial, sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-light);
    letter-spacing: 2px;
    line-height: 1;
}
.val-name {
    display: block;
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
    margin-top: 10px;
}
.val-desc {
    display: block;
    font-size: 11px;
    color: var(--gray-600);
    letter-spacing: 1.5px;
    margin-top: 4px;
    text-transform: uppercase;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 18px;
}
.cert-item {
    background: linear-gradient(135deg, #fafbfd, #fff);
    border: 1.5px solid var(--gray-200);
    border-radius: 10px;
    padding: 22px 12px;
    text-align: center;
    color: var(--gray-900);
    font-size: 13px;
    font-weight: 500;
    transition: all .3s ease;
    padding: 8px 13px;
    display: flex;
  flex-direction: column;  /*图标在上，文字在下*/
  align-items: center;     /*水平居中*/
  justify-content: center; /*垂直居中*/
  gap:8px;                 /*图标和文字间距，按需调*/
  padding:20px 10px;
  border:1px solid #e5e7eb;
  border-radius:12px;
}
.cert-item svg {
    color: var(--primary);
    margin-bottom: 8px;
    transition: transform .3s ease;float: inline-start;
    position: relative;
}
.cert-item:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 20px rgba(12,125,245,.14);
}
.cert-item:hover svg { transform: scale(1.1) rotate(-3deg); }

@media (max-width: 860px) {
    .about-highlights,
    .about-values,
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
    .ah-item + .ah-item::before { display: none; }
}

/* ========================================================================
   404 页面
   ======================================================================== */
.error-page-wrap {
    position: relative;
    text-align: center;
    padding: 130px 16px 160px;
    overflow: hidden;
    background:
        radial-gradient(ellipse 50% 60% at 50% 40%, rgba(12,125,245,.05) 0, transparent 60%),
        linear-gradient(180deg, #fff 0%, #f6faff 100%);
}
.error-code {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: 'DIN', Arial, sans-serif;
    font-size: 140px;
    font-weight: 800;
    line-height: 1;
    color: var(--primary);
    text-shadow: 0 10px 30px rgba(12,125,245,.25);
    position: relative;
    z-index: 2;
}
.ec-orbit {
    display: inline-block;
    position: relative;
    width: 100px; height: 100px;
    animation: orbitSpin 6s linear infinite;
}
.ec-orbit::before {
    content: "";
    position: absolute;
    inset: -8px;
    border: 4px dashed rgba(12,125,245,.35);
    border-radius: 50%;
}
.ec-orbit .ec-num { position: relative; line-height: 100px; }
@keyframes orbitSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.error-h1 {
    font-size: 28px;
    color: var(--gray-900);
    font-weight: 700;
    margin-top: 24px;
    letter-spacing: 2px;
}
.error-msg {
    color: var(--gray-600);
    font-size: 15px;
    margin-top: 14px;
    line-height: 1.9;
}
.error-actions {
    margin-top: 32px;
    display: inline-flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
}
.error-decor { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.ed-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
}
.ed-c1 {
    top: 10%; left: 10%;
    width: 200px; height: 200px;
    background: rgba(12,125,245,.12);
}
.ed-c2 {
    bottom: 10%; right: 15%;
    width: 240px; height: 240px;
    background: rgba(120,205,255,.15);
}
.ed-c3 {
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(12,125,245,.06) 0, transparent 70%);
}
@media (max-width: 860px) {
    .error-code { font-size: 100px; gap: 4px; }
    .ec-orbit { width: 70px; height: 70px; }
    .ec-orbit .ec-num { line-height: 70px; }
    .error-h1 { font-size: 22px; }
    .error-actions { flex-direction: column; width: 100%; max-width: 280px; margin-left: auto; margin-right: auto; }
}

/* ========================================================================
   案例详情页
   ======================================================================== */
.cd-title {
    font-size: 28px;
    color: var(--gray-900);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 16px;
    position: relative;
    padding-left: 16px;
}
.cd-title::before {
    content: "";
    position: absolute;
    left: 0; top: 6px; bottom: 6px;
    width: 5px;
    background: linear-gradient(180deg, var(--primary), var(--primary-light));
    border-radius: 3px;
}
.cd-meta {
    display: flex;
    gap: 22px;
    color: var(--gray-600);
    font-size: 13px;
    padding: 14px 0;
    border-top: 1px solid var(--gray-100);
    border-bottom: 1px solid var(--gray-100);
    margin-bottom: 6px;
    flex-wrap: wrap;
}
.cd-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.cd-meta-item svg { color: var(--primary); }
.cd-cover {
    position: relative;
    height: 360px;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 30px;
    box-shadow: 0 12px 30px rgba(0,0,0,.12);
}
.cd-cover-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.02);
    transition: transform .6s ease;
}
.cd-cover:hover .cd-cover-bg { transform: scale(1.08); }
.cd-cover-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(8,24,58,.65) 0%, rgba(12,125,245,.4) 100%);
}
.cd-cover-text {
    position: absolute;
    left: 36px; bottom: 36px;
    color: #fff;
}
.cd-cover-tag {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(255,255,255,.18);
    border: 1px solid rgba(255,255,255,.35);
    border-radius: 16px;
    font-size: 12px;
    letter-spacing: 3px;
    backdrop-filter: blur(6px);
    margin-bottom: 10px;
}
.cd-cover-text h2 {
    font-size: 28px;
    font-weight: 700;
    text-shadow: 0 4px 14px rgba(0,0,0,.4);
    letter-spacing: 1px;
}
.cd-body {
    color: var(--gray-700);
    line-height: 2;
    font-size: 15px;
}
.cd-body p { margin-bottom: 14px; }
.cd-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-100);
    flex-wrap: wrap;
    gap: 12px;
}

/* ========================================================================
   响应式
   ======================================================================== */
@media (max-width: 1100px) {
    .idx-prod-grid { grid-template-columns: repeat(3, 1fr); }
    .proc-grid { grid-template-columns: repeat(4, 1fr); gap: 28px; }
    .show-stage { grid-template-columns: 200px 1fr 340px; }
    .ia-grid { grid-template-columns: 1fr; gap: 50px; }
    .ia-img { height: 380px; }
}

@media (max-width: 860px) {
    body { min-width: 0; }
    .header .nav-inner { padding: 0 16px; }
    .main-nav {
        position: fixed;
        top: 70px; left: 0; right: 0;
        background: #fff;
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: max-height .35s ease;
        z-index: 99;
    }
    .main-nav.open { max-height: 480px; }
    .main-nav ul { flex-direction: column; align-items: stretch; padding: 10px 0; gap: 0; }
    .main-nav a { padding: 14px 26px; color: var(--gray-900); font-size: 15px; }
    .main-nav a::after { display: none; }
    .main-nav li.active a { color: var(--primary); background: #f6faff; }
    .nav-toggle { display: flex; flex-shrink: 0; flex-basis: 40px; width: 40px; }
    .hp-num { display: none; }
    .header, body.is-inner .header { position: static; background: #fff; color: var(--gray-900); }
    .header.is-scrolled { position: fixed; }
    .header .nav-inner { height: 70px; }

    /* 手机端 LOGO：允许收缩，小字自动省略，不撑破布局 */
    .logo { flex-shrink: 1; min-width: 0; max-width: calc(100% - 60px); }
    .logo-mark { width: 42px; }
    .logo-mark img { height: 44px; }
    .logo-text strong { font-size: 19px; letter-spacing: 1px; }
    .logo-text em { font-size: 9px; letter-spacing: .5px; max-width: 160px; }

    .banner { height: 320px; }
    .banner-content { padding: 0 24px; }
    .bc-en { font-size: 13px; letter-spacing: 4px; margin-bottom: 14px; }
    .bc-title { font-size: 26px; letter-spacing: 1px; line-height: 1.4; }
    .bc-desc { font-size: 13px; line-height: 1.8; margin-top: 14px; letter-spacing: 0; }
    .bc-actions { margin-top: 22px; gap: 12px; }
    .bc-actions .btn { padding: 10px 22px; font-size: 14px; }
    .ii-title { font-size: 26px; }
    .feat-grid { grid-template-columns: 1fr; gap: 18px; }
    .idx-prod-grid { grid-template-columns: repeat(2, 1fr); }
    .banner-arrow { display: none; }

    .show-stage { grid-template-columns: 1fr; min-height: 0; border: 0; }
    .show-cats {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        border-right: 0;
        border: 1px solid var(--gray-200);
        border-bottom: 1px solid var(--gray-200);
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .show-cats::-webkit-scrollbar { display: none; }
    .show-cat {
        border-bottom: 0;
        padding: 12px 16px;
        flex-shrink: 0;
        font-size: 14px;
        min-height: auto;
        gap: 7px;
    }
    .show-cat::before, .show-cat::after { display: none; }
    .show-cat .sc-label {
        white-space: nowrap;
        -webkit-line-clamp: 1;
    }
    .show-pics { height: 260px; }
    .show-panel { position: relative; inset: auto; padding: 34px 26px 64px; }
    .show-panel:not(.is-active) { display: none; }
    .show-dots { right: 20px; bottom: 22px; }

    .app-grid { grid-template-columns: repeat(2, 1fr); }
    .idx-news-grid { grid-template-columns: 1fr; }
    .inc-img { width: 128px; min-height: 130px; }
    .ia-watermark { font-size: 90px; }
    .ia-stats { flex-wrap: wrap; gap: 20px; }
    .ia-stat { flex: 1 1 40%; }
    .ia-stat + .ia-stat { padding-left: 0; }
    .fc-grid { grid-template-columns: 1fr; gap: 50px; }
    .fc-body { gap: 20px; }
    .fc-qr img { width: 96px; height: 96px; }
    .page-wrap { grid-template-columns: 1fr; gap: 0; }

    /* 移动端：侧栏改为普通流式布局，取消 sticky，避免与内容重叠 */
    .sidebar {
        position: static;
        display: block;
        margin-bottom: 26px;
    }
    /* 侧栏栏目导航条：移动端横排紧凑形式 */
    .sb-title {
        border-radius: 8px;
        padding: 18px 20px;
		display:none;
    }
    .sb-title h3 { font-size: 17px; letter-spacing: 1px; }
    .sb-title p { font-size: 10px; letter-spacing: 2px; margin-top: 3px; }
    .sb-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        border: 0;
        background: transparent;
        margin-top: 12px;
    }
    .sb-list li { flex: 1 1 45%; }
    .sb-list li:last-child:nth-child(odd) { flex-basis: auto; }
    .sb-list li a {
        border: 1px solid var(--gray-200);
        border-radius: 6px;
        padding: 9px 12px;
        font-size: 13px;
        justify-content: center;
        text-align: center;
        background: #fff;
    }
    .sb-list li a::after { display: none; }
    .sb-list li.active a { border-color: var(--primary); background: #f6faff; }
    /* 深色服务热线卡：移动端放宽，去掉外部残留，正常流式 */
    .sb-side { margin-top: 18px; }

    /* 内容卡片移动端内边距收窄 */
    .content-card { padding: 0px 18px; }
    .content-card h2 { font-size: 18px; }
    .content-card h3 { font-size: 16px; margin: 22px 0 10px; }
    .content-card p { font-size: 13.5px; line-height: 1.95; margin: 10px 0; }
    .content-card table { font-size: 12px; }
    .content-card th, .content-card td { padding: 9px 10px; }

    /* 关于我们移动端 */
    .about-highlights,
    .about-values,
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
    .about-highlights { padding: 20px 16px; gap: 14px; }
    .ah-num { font-size: 26px; }
    .ah-item + .ah-item::before { display: none; }

    .product-grid { grid-template-columns: 1fr; }
    .proc-grid { grid-template-columns: repeat(2, 1fr); }
    .side-float { display: none; }
    .sf-mobile-only { display: flex; }

    /* 移动端底部悬浮：拨号 + 留言 */
    .mobile-dock {
        position: fixed;
        left: 0; right: 0; bottom: 0;
        z-index: 95;
        display: flex;
        background: var(--primary);
        box-shadow: 0 -4px 16px rgba(0,0,0,.15);
    }
    .mobile-dock a {
        flex: 1;
        text-align: center;
        color: #fff;
        padding: 12px 0;
        font-size: 15px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 7px;
        -webkit-tap-highlight-color: rgba(255,255,255,.18);
        transition: background .15s ease, transform .12s ease;
    }
    .mobile-dock a:active {
        background: rgba(255,255,255,.18);
        transform: scale(.97);
    }
    .mobile-dock a.md-dial { position: relative; }
    /* 拨号按钮右侧加个小红点提示，提示"点这里拨打电话" */
    .mobile-dock a.md-dial::after {
        content: '';
        position: absolute;
        right: 14%; top: 6px;
        width: 8px; height: 8px;
        background: #ff4d4f;
        border-radius: 50%;
        box-shadow: 0 0 0 2px var(--primary);
        animation: dialPulse 1.6s ease-in-out infinite;
    }
    @keyframes dialPulse {
        0%, 100% { box-shadow: 0 0 0 2px var(--primary), 0 0 0 0 rgba(255,77,79,.55); }
        50%      { box-shadow: 0 0 0 2px var(--primary), 0 0 0 10px rgba(255,77,79,0); }
    }
    .mobile-dock a + a { border-left: 1px solid rgba(255,255,255,.25); }
    body { padding-bottom: 46px; }

    /* 拨号兜底弹窗（iOS HTTP / 部分 webview tel: 失效时） */
    .dial-fallback {
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,.55);
        z-index: 200;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 24px;
        animation: dfFade .25s ease;
    }
    .dial-fallback[hidden] { display: none; }
    @keyframes dfFade { from { opacity: 0; } to { opacity: 1; } }
    .df-card {
        position: relative;
        background: #fff;
        border-radius: 14px;
        padding: 28px 24px 22px;
        width: 100%;
        max-width: 340px;
        text-align: center;
        box-shadow: 0 20px 60px rgba(0,0,0,.25);
        animation: dfPop .3s cubic-bezier(.22,1.2,.36,1);
    }
    @keyframes dfPop { from { transform: scale(.85); opacity: 0; } to { transform: scale(1); opacity: 1; } }
    .df-close {
        position: absolute;
        right: 12px; top: 8px;
        width: 28px; height: 28px;
        line-height: 24px;
        text-align: center;
        font-size: 24px;
        color: #999;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }
    .df-icon {
        width: 56px; height: 56px;
        margin: 0 auto 12px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), #4ea6ff);
        color: #fff;
        display: flex; align-items: center; justify-content: center;
        box-shadow: 0 6px 18px rgba(12,125,245,.32);
    }
    .df-card h3 {
        margin: 0 0 6px;
        font-size: 15px;
        color: #666;
        font-weight: normal;
    }
    .df-num {
        font-size: 24px;
        font-weight: 700;
        color: #222;
        letter-spacing: .5px;
        margin-bottom: 12px;
        user-select: all;
        -webkit-user-select: all;
    }
    .df-hint {
        font-size: 12px;
        color: #999;
        line-height: 1.6;
        margin-bottom: 16px;
    }
    .df-actions {
        display: flex;
        gap: 10px;
    }
    .df-actions button {
        flex: 1;
        border: 0;
        border-radius: 8px;
        padding: 11px 0;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }
    .df-call {
        background: linear-gradient(135deg, var(--primary), #4ea6ff);
        color: #fff;
        box-shadow: 0 4px 12px rgba(12,125,245,.28);
    }
    .df-copy {
        background: #f4f6f8;
        color: #333;
    }
}
@media (min-width: 861px) {
    .mobile-dock { display: none; }
}

/* ========================================================================
   移动端排版修复（补齐原版缺失的响应式规则）
   —— 产品详情 .pd-* / 应用CTA .app-cta / 服务热线卡 .sb-side 等
   原 Node 版在窄屏下仍保持桌面双栏/横向 flex，导致内容被挤成细长竖条
   ======================================================================== */
@media (max-width: 920px) {
    /* --- 产品详情：大图 + 信息区 叠成单栏 --- */
    .pd-top { grid-template-columns: 1fr; gap: 22px; }
    .pd-hero { height: 260px; }
    .pd-thumb { width: 64px; height: 52px; }
    .pd-name { font-size: 22px; }
    .pd-brief { font-size: 13.5px; line-height: 1.85; }
    /* 参数卡仍可两列（卡片本身自适应），但缩窄内边距 */
    .pd-specs { gap: 10px; }
    .pd-spec { padding: 10px 12px; }
    .pd-spec b { font-size: 14px; }

    /* --- 产品详情：相关产品 单栏 / 两栏 --- */
    .related-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .rc-img { height: 120px; }

    /* --- 应用案例 / 应用领域：CTA 卡片不挤压 --- */
    .app-cta {
        flex-direction: column;
        align-items: flex-start;
        gap: 18px;
        padding: 26px 24px;
    }
    .app-cta-icon { width: 50px; height: 50px; }
    .app-cta-text h3 { font-size: 18px; }
    .app-cta-text p { font-size: 12.5px; line-height: 1.7; }
    .app-cta .btn { width: 100%; text-align: center; }

    /* --- 侧栏服务热线卡：防挤成竖条 --- */
    .sb-side { text-align: left; padding: 24px 22px; display:none; }
    .sb-side .sbs-icon { margin: 0; }
    .sb-side .sbs-label { margin-top: 14px; }
    .sb-side .sbs-phone { font-size: 22px; }
    .sb-side .sbs-link { display: block; text-align: center; margin-top: 16px; }

    /* --- 采购热线条：移动端纵向堆叠 --- */
    .pd-hotline { flex-direction: column; align-items: flex-start; gap: 18px; padding: 22px; }
    .pd-hotline-text strong { font-size: 20px; }
    .pd-hotline .btn { align-self: stretch; text-align: center; }

    /* --- 案例详情封面：高度适中 --- */
    .cd-cover { height: 240px; display:none;}
    .cd-cover-text { left: 20px; bottom: 20px; }
    .cd-cover-text h2 { font-size: 22px; }
    .cd-title { font-size: 22px; }
    .cd-actions { flex-direction: column; }
    .cd-actions .btn { width: 100%; text-align: center; }

    /* --- 详情页底部返回/咨询按钮：不换行、等宽 --- */
    .nd-actions .btn,
    .cd-actions .btn { white-space: nowrap; padding: 12px 22px; }

    /* --- 新闻列表卡片：防截断（左图缩小、右内容换行） --- */
    .news-row { gap: 0; }
    .nr-img { width: 118px; min-height: 128px; display:none}
    .nr-main { padding: 16px 16px; }
    .nr-top { flex-direction: row; align-items: flex-start; gap: 12px; }
    .nr-date {
        padding-right: 12px;
        border-right: 1px solid var(--gray-200);
        min-width: 44px;
    }
    .nr-date { font-size: 22px; }
    .nr-date small { font-size: 11px; margin-top: 4px; }
    .nr-top h3 {
        font-size: 15px;
        line-height: 1.5;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
    }
    .nr-summary { -webkit-line-clamp: 2; font-size: 12.5px; }
    .nr-tag { padding: 3px 10px; font-size: 11px; white-space: nowrap; }
    .nr-more { white-space: nowrap; }
}

/* ========================================================================
   常见问题 FAQ（GEO / AI 搜索友好模块）
   ======================================================================== */
.idx-faq { background: var(--gray-100); padding: 70px 0 60px; }
.faq-list { max-width: 900px; margin: 36px auto 0; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--white); border-radius: 10px; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-200); overflow: hidden; transition: var(--transition); }
.faq-item[open] { box-shadow: var(--shadow-md); border-color: rgba(12,125,245,0.35); }
.faq-q { display: flex; align-items: center; gap: 14px; padding: 18px 22px; font-size: 15.5px; font-weight: bold; color: var(--gray-900); cursor: pointer; user-select: none; list-style: none; }
.faq-q::-webkit-details-marker { display: none; }
.faq-item[open] .faq-q { color: var(--primary); }
.fq-no { font-size: 13px; font-weight: 800; color: var(--primary); opacity: .55; font-family: Arial, sans-serif; }
.faq-q .fq-arrow { margin-left: auto; width: 9px; height: 9px; border-right: 2.5px solid var(--gray-600); border-bottom: 2.5px solid var(--gray-600); transform: rotate(45deg); transition: var(--transition); flex: none; }
.faq-item[open] .fq-arrow { transform: rotate(225deg); border-color: var(--primary); }
.faq-a { padding: 0 22px 20px 49px; font-size: 14px; color: var(--gray-700); line-height: 1.9; }
.faq-more { text-align: center; margin-top: 28px; font-size: 13.5px; color: var(--gray-600); }
.faq-more a { color: var(--primary); font-weight: bold; }

@media (max-width: 768px) {
    .idx-faq { padding: 50px 0 44px; }
    .faq-list { margin-top: 26px; gap: 10px; }
    .faq-q { padding: 15px 16px; font-size: 14px; gap: 10px; }
    .faq-a { padding: 0 16px 16px 32px; font-size: 13px; }
}