/* =========================================================
   厦门安东电子有限公司 官网样式
   ========================================================= */
:root {
    --primary: #0b5fa5;
    --primary-dark: #083f70;
    --primary-deep: #062c4f;
    --primary-light: #e8f2fb;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --text: #1f2a37;
    --text-2: #4b5563;
    --muted: #6b7280;
    --line: #e5eaf0;
    --bg: #f5f8fb;
    --white: #ffffff;
    --radius: 10px;
    --shadow-sm: 0 2px 10px rgba(15, 42, 74, .06);
    --shadow: 0 14px 40px rgba(15, 42, 74, .12);
    --container: 1200px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: var(--white);
    font-size: 15px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; border: 0; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.3; }
p { margin: 0 0 1em; }
input, button, textarea, select { font-family: inherit; font-size: inherit; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------------- 通用按钮 ---------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 44px;
    padding: 0 26px;
    border-radius: 6px;
    border: 1px solid transparent;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all .25s ease;
    white-space: nowrap;
}
.btn i { font-size: 13px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(11, 95, 165, .24); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-accent { background: var(--accent); color: #2b1a02; }
.btn-accent:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost { border-color: rgba(255, 255, 255, .55); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }
.btn-outline { border-color: var(--primary); color: var(--primary); background: #fff; }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { background: var(--primary-light); }
.btn-sm { height: 36px; padding: 0 18px; font-size: 14px; }
.btn-block { width: 100%; }

/* ---------------- 顶部 ---------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 900;
    background: #fff;
    transition: box-shadow .3s ease;
}
.site-header.is-scrolled { box-shadow: 0 6px 24px rgba(9, 37, 66, .1); }

.topbar {
    background: var(--primary-deep);
    color: rgba(255, 255, 255, .78);
    font-size: 13px;
    height: 36px;
}
.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 36px;
}
.topbar-slogan i { color: var(--accent); margin-right: 6px; }
.topbar-links { display: flex; align-items: center; gap: 16px; }
.topbar-links a:hover { color: #fff; }
.topbar-links i { margin-right: 4px; color: var(--accent); }
.topbar-divider { width: 1px; height: 12px; background: rgba(255, 255, 255, .25); }

.header-main { height: 80px; border-bottom: 1px solid var(--line); background: #fff; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; gap: 24px; }

.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-logo { display: block; height: 42px; width: auto; max-width: 240px; object-fit: contain; }
.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary) 0%, #0a86c9 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    font-weight: 800;
    font-family: Georgia, serif;
    box-shadow: 0 8px 18px rgba(11, 95, 165, .28);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 22px; letter-spacing: 2.5px; color: var(--primary-deep); font-family: "Segoe UI", Arial, sans-serif; }
.brand-text em { font-style: normal; font-size: 12px; color: var(--muted); letter-spacing: 1px; margin-top: 3px; }
.brand-light .brand-text strong { color: #fff; }
.brand-light .brand-text em { color: rgba(255, 255, 255, .6); }

/* 导航 */
.main-nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: 6px; }
.nav-item { position: relative; }
.nav-item > a {
    display: flex;
    align-items: center;
    gap: 5px;
    height: 80px;
    padding: 0 15px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
    position: relative;
    transition: color .2s;
}
.nav-item > a i { font-size: 10px; color: #9aa4b2; transition: transform .2s; }
.nav-item:hover > a, .nav-item.is-active > a { color: var(--primary); }
.nav-item.is-active > a::after {
    content: "";
    position: absolute;
    left: 15px;
    right: 15px;
    bottom: 0;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--primary);
}
.nav-item:hover > a i { transform: rotate(180deg); }

.drop-panel {
    position: absolute;
    top: 80px;
    left: 50%;
    transform: translate(-50%, 10px);
    min-width: 210px;
    background: #fff;
    border-radius: 0 0 10px 10px;
    box-shadow: var(--shadow);
    padding: 10px;
    opacity: 0;
    visibility: hidden;
    transition: all .22s ease;
    border-top: 2px solid var(--primary);
    z-index: 20;
}
.nav-item:hover .drop-panel { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.drop-list li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border-radius: 6px;
    font-size: 14.5px;
    color: var(--text-2);
    white-space: nowrap;
    transition: all .18s;
}
.drop-list li a i { color: var(--primary); width: 16px; text-align: center; }
.drop-list li a:hover { background: var(--primary-light); color: var(--primary); }

.mega-panel {
    width: min(1020px, calc(100vw - 40px));
    padding: 24px 26px 18px;
}
.mega-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 18px 26px;
}
.mega-title {
    display: inline-block;
    font-weight: 700;
    color: var(--primary-deep);
    font-size: 15px;
    padding-bottom: 8px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--line);
    width: 100%;
}
.mega-title:hover { color: var(--primary); }
.mega-links li a {
    display: block;
    padding: 4px 0;
    font-size: 14px;
    color: var(--muted);
    transition: color .18s, padding-left .18s;
}
.mega-links li a:hover { color: var(--primary); padding-left: 4px; }
.mega-foot {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 16px;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    font-size: 14px;
    color: var(--muted);
}
.mega-foot a { color: var(--primary); font-weight: 600; }
.mega-foot a i { font-size: 12px; margin-left: 4px; }

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
    padding: 10px;
}
.nav-toggle span { display: block; height: 2px; background: var(--primary-deep); margin: 4px 0; border-radius: 2px; transition: .25s; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------------- 首页首屏 ---------------- */
.hero {
    position: relative;
    height: 560px;
    overflow: hidden;
    background: var(--primary-deep);
}
.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity .9s ease;
    transform: scale(1.03);
    pointer-events: none;
}
.hero-slide.is-active { opacity: 1; transform: scale(1); transition: opacity .9s ease, transform 6s ease; pointer-events: auto; }
.hero-slide::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(4, 26, 47, .92) 0%, rgba(5, 36, 65, .72) 45%, rgba(6, 44, 79, .18) 100%);
}
.hero-inner { position: relative; z-index: 2; height: 100%; display: flex; align-items: center; }
.hero-slide .hero-content > * { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.hero-slide.is-active .hero-content > * { opacity: 1; transform: none; }
.hero-slide.is-active .hero-content > *:nth-child(1) { transition-delay: .18s; }
.hero-slide.is-active .hero-content > *:nth-child(2) { transition-delay: .30s; }
.hero-slide.is-active .hero-content > *:nth-child(3) { transition-delay: .42s; }
.hero-slide.is-active .hero-content > *:nth-child(4) { transition-delay: .54s; }
.hero-content { max-width: 660px; color: #fff; }
.hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    letter-spacing: 3px;
    color: #ffd48a;
    text-transform: uppercase;
    margin-bottom: 18px;
}
.hero-kicker::before { content: ""; width: 36px; height: 2px; background: var(--accent); }
.hero-content h1 { font-size: 50px; line-height: 1.22; letter-spacing: 1px; margin-bottom: 18px; }
.hero-content p { font-size: 17px; color: rgba(255, 255, 255, .8); margin-bottom: 30px; max-width: 540px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-dots {
    position: absolute;
    left: 50%;
    bottom: 78px;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 6;
}
.hero-dots button {
    width: 30px;
    height: 4px;
    border-radius: 4px;
    border: 0;
    background: rgba(255, 255, 255, .35);
    cursor: pointer;
    transition: .25s;
}
.hero-dots button.is-active { width: 46px; background: var(--accent); }
.hero-scroll {
    position: absolute;
    right: 40px;
    bottom: 60px;
    z-index: 3;
    color: rgba(255, 255, 255, .55);
    font-size: 12px;
    letter-spacing: 2px;
    writing-mode: vertical-rl;
}
.hero-scroll::after { content: ""; display: block; width: 1px; height: 48px; background: rgba(255, 255, 255, .4); margin: 10px auto 0; }

/* ---------------- 通用区块 ---------------- */
.sec { padding: 78px 0; }
.sec-sm { padding: 54px 0; }
.sec-bg { background: var(--bg); }
.sec-dark { background: linear-gradient(120deg, #062c4f, #0b5fa5); color: #fff; }
.sec-head { margin-bottom: 42px; }
.sec-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 10px;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--accent); }
.sec-title { font-size: 34px; color: var(--primary-deep); letter-spacing: .5px; }
.sec-desc { color: var(--muted); margin-top: 12px; max-width: 640px; }
.sec-more { color: var(--primary); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.sec-more i { font-size: 12px; transition: transform .2s; }
.sec-more:hover i { transform: translateX(4px); }
.sec-dark .sec-title { color: #fff; }
.sec-dark .sec-desc { color: rgba(255, 255, 255, .65); }
.sec-dark .sec-more { color: #ffd48a; }

/* ---------------- 优势条 ---------------- */
.advantage-bar { margin-top: -52px; position: relative; z-index: 5; }
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.advantage-item {
    display: flex;
    gap: 14px;
    padding: 26px 24px;
    border-right: 1px solid var(--line);
}
.advantage-item:last-child { border-right: 0; }
.advantage-icon {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
}
.advantage-item h4 { font-size: 16px; margin-bottom: 4px; color: var(--primary-deep); }
.advantage-item p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.5; }

/* ---------------- 产品分类卡 ---------------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cat-card {
    position: relative;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    overflow: hidden;
    transition: all .28s ease;
}
.cat-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--primary);
    opacity: 0;
    transition: opacity .25s;
}
.cat-card:hover { border-color: rgba(11, 95, 165, .35); box-shadow: var(--shadow); transform: translateY(-4px); }
.cat-card:hover::before { opacity: 1; }
.cat-card-head { display: flex; align-items: flex-start; justify-content: space-between; }
.cat-card h3 { font-size: 19px; color: var(--primary-deep); }
.cat-card-no { font-family: Georgia, serif; font-size: 26px; color: #dbe6f1; font-weight: 700; line-height: 1; }
.cat-card p { margin: 0; font-size: 13.5px; color: var(--muted); }
.cat-card-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.cat-card-links a {
    font-size: 12.5px;
    color: var(--text-2);
    background: #f1f5f9;
    border-radius: 100px;
    padding: 4px 12px;
    transition: .18s;
}
.cat-card-links a:hover { background: var(--primary); color: #fff; }
.cat-card-more { color: var(--primary); font-size: 13px; font-weight: 600; margin-top: 4px; display: inline-flex; align-items: center; gap: 6px; }
.cat-card-more i { font-size: 11px; }

/* ---------------- 产品网格 ---------------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all .28s ease;
    display: flex;
    flex-direction: column;
}
.product-card:hover { box-shadow: var(--shadow); transform: translateY(-5px); border-color: transparent; }
.product-thumb { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: #eef3f8; }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.product-card:hover .product-thumb img { transform: scale(1.05); }
.product-tag {
    position: absolute;
    left: 12px;
    top: 12px;
    background: rgba(6, 44, 79, .78);
    color: #fff;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 100px;
    backdrop-filter: blur(4px);
}
.product-body { padding: 18px 18px 20px; display: flex; flex-direction: column; flex: 1; }
.product-body h3 { font-size: 17px; color: var(--primary-deep); margin-bottom: 6px; }
.product-model { font-size: 12.5px; color: var(--accent-dark); letter-spacing: .5px; font-weight: 600; margin-bottom: 8px; }
.product-body p { font-size: 13px; color: var(--muted); margin: 0 0 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-link {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--primary);
    font-weight: 600;
    padding-top: 12px;
    border-top: 1px dashed var(--line);
}
.product-link i { font-size: 12px; transition: transform .2s; }
.product-card:hover .product-link i { transform: translateX(4px); }

/* ---------------- 关于首页 ---------------- */
.about-home { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-figure { position: relative; }
.about-figure img { width: 100%; border-radius: 14px; box-shadow: var(--shadow); }
.about-figure::before {
    content: "";
    position: absolute;
    left: -18px;
    bottom: -18px;
    width: 55%;
    height: 55%;
    border-left: 5px solid var(--accent);
    border-bottom: 5px solid var(--accent);
    border-radius: 0 0 0 14px;
    z-index: -1;
}
.about-figure-badge {
    position: absolute;
    right: 20px;
    bottom: 20px;
    background: rgba(6, 44, 79, .9);
    color: #fff;
    border-radius: 10px;
    padding: 14px 20px;
    backdrop-filter: blur(6px);
}
.about-figure-badge strong { font-size: 30px; font-family: Georgia, serif; color: #ffd48a; }
.about-figure-badge span { display: block; font-size: 12px; color: rgba(255, 255, 255, .7); }
.about-copy .sec-title { margin-bottom: 16px; }
.about-copy p { color: var(--text-2); }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 20px; margin: 24px 0 30px; }
.about-points li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-2); }
.about-points i { color: var(--primary); margin-top: 5px; font-size: 13px; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 46px; padding-top: 36px; border-top: 1px solid var(--line); }
.stat-item strong { display: block; font-size: 36px; line-height: 1.1; color: var(--primary); font-family: Georgia, serif; }
.stat-item strong small { font-size: 16px; margin-left: 2px; }
.stat-item span { font-size: 13px; color: var(--muted); }

/* ---------------- 新闻 ---------------- */
.news-home { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; }
.news-feature { position: relative; border-radius: 12px; overflow: hidden; min-height: 380px; display: flex; align-items: flex-end; background: var(--primary-deep); }
.news-feature img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.news-feature:hover img { transform: scale(1.04); }
.news-feature::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6, 44, 79, 0) 30%, rgba(6, 44, 79, .92) 100%); }
.news-feature-body { position: relative; z-index: 2; padding: 30px; color: #fff; }
.news-feature-body .news-cat { background: var(--accent); color: #2b1a02; }
.news-feature-body h3 { font-size: 23px; margin: 10px 0 8px; }
.news-feature-body p { color: rgba(255, 255, 255, .75); font-size: 13.5px; margin: 0; }
.news-cat { display: inline-block; font-size: 12px; padding: 3px 10px; border-radius: 100px; background: var(--primary-light); color: var(--primary); }
.news-list-home { display: flex; flex-direction: column; }
.news-row {
    display: flex;
    gap: 18px;
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
    align-items: flex-start;
}
.news-row:first-child { padding-top: 0; }
.news-row:last-child { border-bottom: 0; }
.news-date { flex-shrink: 0; width: 64px; text-align: center; border-right: 1px solid var(--line); padding-right: 16px; }
.news-date strong { display: block; font-size: 26px; color: var(--primary); font-family: Georgia, serif; line-height: 1.1; }
.news-date span { font-size: 11.5px; color: var(--muted); }
.news-row-body h4 { font-size: 15.5px; margin-bottom: 4px; line-height: 1.5; }
.news-row-body h4 a { transition: color .2s; }
.news-row-body h4 a:hover { color: var(--primary); }
.news-row-body p { font-size: 13px; color: var(--muted); margin: 0; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.news-row-body .news-cat { margin-bottom: 6px; }

/* ---------------- 合作伙伴 ---------------- */
.partner-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.partner-logo {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    transition: all .25s;
    text-align: center;
}
.partner-logo:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.partner-logo span { font-size: 16px; font-weight: 700; color: #8a94a3; letter-spacing: 1px; transition: color .25s; }
.partner-logo:hover span { color: var(--primary); }
.partner-logo img { max-height: 56px; width: auto; object-fit: contain; }

/* ---------------- 合作伙伴页 ---------------- */
.partner-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.partner-card {
    display: flex;
    align-items: center;
    gap: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    background: #fff;
    transition: all .25s;
}
.partner-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: transparent; }
.partner-card-logo {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-light), #f4f9fe);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
    overflow: hidden;
}
.partner-card-logo img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.partner-card-body { min-width: 0; }
.partner-card-body h3 { font-size: 16px; color: var(--primary-deep); margin-bottom: 4px; }
.partner-card-body p { font-size: 12.5px; color: var(--muted); margin: 0 0 6px; }
.partner-card-body a { font-size: 12.5px; color: var(--primary); font-weight: 600; }
.partner-card-body a i { font-size: 10px; margin-left: 3px; }

/* ---------------- CTA ---------------- */
.cta-band {
    background: linear-gradient(110deg, #062c4f 0%, #0b5fa5 70%, #0a7ab8 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.cta-band::after {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 320px;
    height: 320px;
    border: 40px solid rgba(255, 255, 255, .06);
    border-radius: 50%;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; position: relative; z-index: 2; }
.cta-inner h2 { font-size: 30px; margin-bottom: 8px; }
.cta-inner p { margin: 0; color: rgba(255, 255, 255, .7); }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------------- 内页头部 ---------------- */
.page-hero {
    position: relative;
    padding: 64px 0 52px;
    background: linear-gradient(115deg, #062c4f 0%, #0a4c85 60%, #0b5fa5 100%);
    color: #fff;
    overflow: hidden;
}
.page-hero::after {
    content: "";
    position: absolute;
    right: -60px;
    bottom: -120px;
    width: 420px;
    height: 420px;
    border: 60px solid rgba(255, 255, 255, .05);
    border-radius: 50%;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { font-size: 38px; margin-bottom: 10px; letter-spacing: 1px; }
.page-hero p { color: rgba(255, 255, 255, .68); max-width: 640px; margin: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; color: rgba(255, 255, 255, .6); margin-top: 20px; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: 10px; }
.breadcrumb .current { color: #ffd48a; }

/* ---------------- 内页布局 ---------------- */
.page-layout { display: grid; grid-template-columns: 260px 1fr; gap: 38px; align-items: start; }
.sidebar { position: sticky; top: 104px; }
.side-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-bottom: 20px; }
.side-head {
    background: linear-gradient(120deg, var(--primary-deep), var(--primary));
    color: #fff;
    padding: 20px 22px;
}
.side-head h3 { font-size: 19px; margin: 0; }
.side-head p { margin: 4px 0 0; font-size: 12px; color: rgba(255, 255, 255, .65); letter-spacing: 1px; }
.cat-menu { padding: 10px; }
.cat-item { border-bottom: 1px dashed var(--line); }
.cat-item:last-child { border-bottom: 0; }
.cat-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 12px;
    border-radius: 6px;
    font-size: 14.5px;
    color: var(--text-2);
    transition: .18s;
}
.cat-link:hover { background: var(--primary-light); color: var(--primary); }
.cat-link.active { background: var(--primary); color: #fff; font-weight: 600; }
.cat-link i { font-size: 11px; color: #9aa4b2; transition: transform .2s; }
.cat-item.is-open > .cat-link i { transform: rotate(180deg); }
.cat-sub { display: none; padding: 0 0 6px 10px; }
.cat-item.is-open > .cat-sub { display: block; }
.cat-sub .cat-link { font-size: 13.5px; padding: 9px 12px 9px 22px; position: relative; }
.cat-sub .cat-link::before { content: ""; position: absolute; left: 10px; top: 18px; width: 5px; height: 5px; border-radius: 50%; background: #c3cdd9; }
.cat-sub .cat-link.active::before { background: #fff; }
.side-contact { background: var(--primary-deep); color: #fff; border-radius: var(--radius); padding: 24px; }
.side-contact h4 { font-size: 16px; margin-bottom: 12px; }
.side-contact .hotline { font-size: 25px; font-weight: 700; color: #ffd48a; letter-spacing: .5px; display: block; margin-bottom: 10px; }
.side-contact p { font-size: 12.5px; color: rgba(255, 255, 255, .65); margin: 0; }

.content-panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.content-panel .panel-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 22px; flex-wrap: wrap; }
.content-panel .panel-head h2 { font-size: 22px; color: var(--primary-deep); }
.result-count { font-size: 13px; color: var(--muted); }
.result-count b { color: var(--primary); }

/* 筛选栏 */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; }
.search-box { display: flex; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; background: #fff; }
.search-box input { border: 0; outline: none; padding: 0 14px; height: 38px; width: 220px; font-size: 14px; }
.search-box button { border: 0; background: var(--primary); color: #fff; width: 44px; cursor: pointer; }
.search-box button:hover { background: var(--primary-dark); }

/* 产品列表 */
.product-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

/* 分页 */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 40px; flex-wrap: wrap; }
.pagination li { list-style: none; }
.pagination li a, .pagination li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--text-2);
    font-size: 14px;
    background: #fff;
    transition: .2s;
}
.pagination li a:hover { border-color: var(--primary); color: var(--primary); }
.pagination li.active span { background: var(--primary); border-color: var(--primary); color: #fff; }
.pagination li.disabled span { color: #c3cbd5; background: #f7f9fb; }

/* ---------------- 产品详情 ---------------- */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 10px; }
.gallery-main { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: #eef3f8; aspect-ratio: 4 / 3; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.gallery-thumbs button { width: 76px; height: 60px; border: 2px solid transparent; border-radius: 6px; overflow: hidden; padding: 0; cursor: pointer; background: #eef3f8; }
.gallery-thumbs button.is-active { border-color: var(--primary); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: cover; }
.detail-info h2 { font-size: 30px; color: var(--primary-deep); margin-bottom: 8px; }
.detail-model { color: var(--accent-dark); font-weight: 600; font-size: 14px; letter-spacing: 1px; margin-bottom: 16px; }
.detail-summary { color: var(--text-2); font-size: 14.5px; margin-bottom: 22px; }
.detail-meta { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 8px 0; margin-bottom: 24px; }
.detail-meta li { display: flex; justify-content: space-between; gap: 20px; padding: 8px 0; font-size: 13.5px; }
.detail-meta li span:first-child { color: var(--muted); }
.detail-meta li span:last-child { color: var(--text); }
.detail-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.detail-actions .btn { flex: 1; min-width: 150px; }
.detail-note { margin-top: 16px; font-size: 12.5px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.detail-note i { color: var(--primary); }

.detail-tabs { margin-top: 46px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.detail-tab-head { display: flex; border-bottom: 1px solid var(--line); background: #f8fafc; }
.detail-tab-head button {
    border: 0;
    background: transparent;
    padding: 16px 28px;
    font-size: 15px;
    font-weight: 600;
    color: var(--muted);
    cursor: pointer;
    position: relative;
}
.detail-tab-head button.is-active { color: var(--primary); background: #fff; }
.detail-tab-head button.is-active::after { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--primary); }
.detail-tab-body { padding: 30px; }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; }
.manual-box { display: flex; align-items: center; gap: 16px; background: var(--primary-light); border-radius: 8px; padding: 20px; }
.manual-box .icon { width: 48px; height: 48px; border-radius: 8px; background: #fff; color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.manual-box h4 { font-size: 15px; margin-bottom: 2px; }
.manual-box p { margin: 0; font-size: 12.5px; color: var(--muted); }
.manual-box .btn { margin-left: auto; }

/* 富文本内容 */
.rich-text { color: var(--text-2); font-size: 14.5px; line-height: 1.9; }
.rich-text h2, .rich-text h3, .rich-text h4 { color: var(--primary-deep); margin: 26px 0 12px; }
.rich-text h3 { font-size: 19px; padding-left: 13px; border-left: 4px solid var(--primary); }
.rich-text p { margin-bottom: 14px; }
.rich-text ul { list-style: disc; padding-left: 22px; margin-bottom: 16px; }
.rich-text ol { list-style: decimal; padding-left: 22px; margin-bottom: 16px; }
.rich-text li { margin-bottom: 6px; }
.rich-text img { max-width: 100%; height: auto; border-radius: 8px; margin: 12px 0; }
.rich-text table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }
.rich-text table th, .rich-text table td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.rich-text table th { background: #f3f7fb; color: var(--primary-deep); font-weight: 600; width: 180px; }
.rich-text a { color: var(--primary); text-decoration: underline; }

/* ---------------- 服务支持 ---------------- */
.download-list { display: flex; flex-direction: column; gap: 12px; }
.download-item {
    display: flex;
    align-items: center;
    gap: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px 20px;
    background: #fff;
    transition: all .22s;
}
.download-item:hover { border-color: rgba(11, 95, 165, .4); box-shadow: var(--shadow-sm); transform: translateX(3px); }
.download-icon {
    width: 46px;
    height: 46px;
    border-radius: 8px;
    background: #fdf1e3;
    color: #d97706;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
    flex-shrink: 0;
}
.download-icon.software { background: #e8f2fb; color: var(--primary); }
.soft-version {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-dark);
    background: #fff4e5;
    border-radius: 100px;
    padding: 1px 9px;
    margin-left: 6px;
    vertical-align: 2px;
}
.software-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 7px; }
.software-tags span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11.5px;
    color: #526274;
    background: #f1f5f9;
    border-radius: 100px;
    padding: 2px 10px;
}
.software-tags i { color: var(--primary); font-size: 10.5px; }
.download-body { flex: 1; min-width: 0; }
.download-body h4 { font-size: 15.5px; margin-bottom: 3px; }
.download-body p { margin: 0; font-size: 12.5px; color: var(--muted); }
.download-product { margin-top: 5px; font-size: 12px; color: #9aa4b2; }
.download-product a { color: var(--primary); font-weight: 600; }
.download-product a:hover { text-decoration: underline; }
.download-meta { font-size: 12px; color: #9aa4b2; white-space: nowrap; text-align: right; }
.download-meta span { display: block; }
.download-meta span + span { margin-top: 2px; }
.download-item .btn { flex-shrink: 0; }

.service-tabs { display: flex; gap: 8px; margin-bottom: 26px; }
.service-tabs a { padding: 10px 22px; border-radius: 6px; border: 1px solid var(--line); font-size: 14px; color: var(--text-2); background: #fff; }
.service-tabs a.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item { border: 1px solid var(--line); border-radius: 8px; background: #fff; overflow: hidden; }
.faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 18px 22px;
    font-size: 15.5px;
    font-weight: 600;
    color: var(--primary-deep);
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    padding-right: 48px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .q {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.faq-item summary::after {
    content: "\2b";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    right: 22px;
    color: var(--primary);
    font-size: 13px;
}
.faq-item[open] summary::after { content: "\f068"; }
.faq-item[open] summary { border-bottom: 1px solid var(--line); background: #f8fbfe; }
.faq-answer { padding: 18px 22px 20px 58px; color: var(--text-2); font-size: 14px; line-height: 1.8; }
.faq-answer p { margin: 0; }

/* ---------------- 新闻列表 ---------------- */
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-card {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: #fff;
    transition: all .25s;
}
.news-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: transparent; }
.news-card-img { height: 100%; min-height: 168px; overflow: hidden; background: #eef3f8; }
.news-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-card:hover .news-card-img img { transform: scale(1.04); }
.news-card-body { padding: 20px 24px 20px 0; display: flex; flex-direction: column; }
.news-card-body h3 { font-size: 18px; margin: 8px 0; line-height: 1.5; }
.news-card-body h3 a:hover { color: var(--primary); }
.news-card-body p { font-size: 13.5px; color: var(--muted); margin: 0 0 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; color: #9aa4b2; }
.news-card-foot .read { color: var(--primary); font-weight: 600; }
.news-meta { display: flex; align-items: center; gap: 16px; font-size: 12.5px; color: #9aa4b2; }
.news-meta span { display: inline-flex; align-items: center; gap: 5px; }

/* 新闻详情 */
.article-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 40px 44px; }
.article-head { border-bottom: 1px solid var(--line); padding-bottom: 22px; margin-bottom: 28px; }
.article-head h1 { font-size: 30px; color: var(--primary-deep); line-height: 1.45; margin-bottom: 14px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; color: var(--muted); }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--primary); }
.article-nav { display: flex; flex-direction: column; gap: 8px; margin-top: 36px; padding-top: 22px; border-top: 1px dashed var(--line); font-size: 14px; color: var(--text-2); }
.article-nav a:hover { color: var(--primary); }
.article-nav span { color: var(--muted); margin-right: 8px; }
.related-block { margin-top: 40px; }
.related-block h3 { font-size: 20px; color: var(--primary-deep); margin-bottom: 18px; }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.related-item { display: flex; align-items: center; justify-content: space-between; gap: 16px; border: 1px solid var(--line); border-radius: 8px; padding: 14px 18px; font-size: 14px; transition: .2s; }
.related-item:hover { border-color: var(--primary); color: var(--primary); }
.related-item span { color: #9aa4b2; font-size: 12px; flex-shrink: 0; }

/* ---------------- 关于 / 单页 ---------------- */
.about-banner { border-radius: 12px; overflow: hidden; margin-bottom: 28px; }
.about-banner img { width: 100%; max-height: 340px; object-fit: cover; }
.about-nav .cat-link { padding-left: 18px; }

/* ---------------- 联系我们 ---------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 36px; align-items: stretch; }
.contact-left { display: flex; flex-direction: column; }
.contact-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.contact-card .icon { width: 42px; height: 42px; border-radius: 9px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 17px; margin-bottom: 12px; }
.contact-card h4 { font-size: 14px; color: var(--muted); font-weight: 500; margin-bottom: 4px; }
.contact-card p { margin: 0; font-size: 15px; color: var(--primary-deep); font-weight: 600; line-height: 1.6; word-break: break-all; }
.contact-map { margin-top: 16px; border-radius: var(--radius); overflow: hidden; position: relative; background: #e8eef4; border: 1px solid var(--line); flex: 1 1 auto; min-height: 220px; }
.map-tiles { display: grid; grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(2, 1fr); width: 100%; height: 100%; }
.map-tiles img { width: 100%; height: 100%; object-fit: cover; display: block; }
.map-marker {
    position: absolute;
    left: 50.2%;
    top: 35.7%;
    transform: translate(-50%, -100%);
    color: #d93025;
    font-size: 30px;
    line-height: 1;
    text-shadow: 0 3px 8px rgba(0, 0, 0, .35);
    pointer-events: none;
}
.map-attr {
    position: absolute;
    left: 8px;
    bottom: 8px;
    font-size: 10.5px;
    color: #5b6b7b;
    background: rgba(255, 255, 255, .82);
    border-radius: 3px;
    padding: 1px 6px;
}
.contact-map .map-link {
    position: absolute;
    right: 12px;
    bottom: 12px;
    background: rgba(255, 255, 255, .94);
    border-radius: 6px;
    padding: 6px 13px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--primary);
    box-shadow: 0 4px 14px rgba(15, 42, 74, .16);
}
.contact-map .map-link:hover { background: #fff; }
.contact-form-panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.contact-form-panel h2 { font-size: 24px; color: var(--primary-deep); margin-bottom: 6px; }
.contact-form-panel .sub { color: var(--muted); font-size: 13.5px; margin-bottom: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-item { display: flex; flex-direction: column; gap: 7px; }
.form-item.full { grid-column: 1 / -1; }
.form-item label { font-size: 13px; color: var(--text-2); font-weight: 500; }
.form-item label b { color: #d93025; margin-left: 2px; }
.form-item input, .form-item textarea, .form-item select {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 11px 14px;
    font-size: 14px;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
    background: #fff;
    width: 100%;
}
.form-item input:focus, .form-item textarea:focus, .form-item select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(11, 95, 165, .1); }
.form-item textarea { resize: vertical; min-height: 120px; }
.form-tip { font-size: 12px; color: #9aa4b2; }
.form-actions { margin-top: 20px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hp-field { position: absolute; left: -9999px; }

/* ---------------- 页脚 ---------------- */
.site-footer { background: #071a2c; color: rgba(255, 255, 255, .65); margin-top: 0; }
.footer-main { padding: 62px 0 46px; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.3fr; gap: 40px; }
.footer-desc { font-size: 13.5px; color: rgba(255, 255, 255, .5); margin: 18px 0 22px; max-width: 330px; line-height: 1.8; }
.footer-hotline span { display: block; font-size: 12px; color: rgba(255, 255, 255, .45); letter-spacing: 1px; }
.footer-hotline a { font-size: 30px; font-weight: 700; color: #ffd48a; letter-spacing: .5px; font-family: "Segoe UI", Arial, sans-serif; }
.footer-hotline .footer-hotline-sub { margin-top: 10px; }
.footer-hotline a.pre { font-size: 22px; }
.side-phone { margin-top: 12px; }
.side-phone span { display: block; font-size: 11.5px; color: rgba(255, 255, 255, .55); letter-spacing: 1px; }
.side-phone a { font-size: 21px; font-weight: 700; color: #ffd48a; letter-spacing: .3px; font-family: "Segoe UI", Arial, sans-serif; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 24px; height: 2px; background: var(--accent); }
.footer-col ul li { margin-bottom: 10px; font-size: 13.5px; }
.footer-col ul li a { color: rgba(255, 255, 255, .55); transition: color .2s; }
.footer-col ul li a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 10px; color: rgba(255, 255, 255, .55); line-height: 1.7; }
.footer-contact li i { color: var(--accent); margin-top: 5px; font-size: 12px; width: 14px; flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 18px 0; font-size: 12.5px; color: rgba(255, 255, 255, .38); }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-bottom a:hover { color: rgba(255, 255, 255, .75); }

/* 返回顶部 */
.back-top {
    position: fixed;
    right: 26px;
    bottom: 34px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(11, 95, 165, .35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all .25s;
    z-index: 800;
}
.back-top.is-show { opacity: 1; visibility: visible; transform: none; }

/* 滚动动画 */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in-view { opacity: 1; transform: none; }

/* 空状态 */
.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty-state i { font-size: 40px; color: #c7d3df; margin-bottom: 14px; display: block; }

/* 图片加载失败占位 */
.img-fallback {
    position: relative;
    background: linear-gradient(135deg, #e8eff7, #f4f8fc) !important;
}
.img-fallback::after {
    content: "\f03e";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #b8c7d8;
    font-size: 30px;
}

/* 隐藏 ThinkPHP 调试角标 */
#think_page_trace_open, #think_page_trace { display: none !important; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1199px) {
    .nav-item > a { padding: 0 11px; font-size: 15px; }
    .hero-content h1 { font-size: 42px; }
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .product-grid-3 { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 28px; }
}

@media (max-width: 991px) {
    .topbar-slogan { display: none; }
    .topbar-inner { justify-content: flex-end; }
    .topbar-links { gap: 10px; font-size: 12px; }
    .topbar-email, .topbar-email-divider { display: none; }
    .nav-toggle { display: block; }
    .main-nav {
        position: fixed;
        top: 116px;
        left: 0;
        right: 0;
        max-height: calc(100vh - 116px);
        overflow-y: auto;
        background: #fff;
        border-top: 1px solid var(--line);
        box-shadow: 0 20px 30px rgba(9, 37, 66, .12);
        padding: 10px 20px 24px;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: all .25s ease;
        margin-left: 0;
    }
    .main-nav.is-open { opacity: 1; visibility: visible; transform: none; }
    .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
    .nav-item { border-bottom: 1px solid #f1f4f8; }
    .nav-item > a { height: 48px; padding: 0 4px; font-size: 15px; justify-content: space-between; }
    .nav-item.is-active > a::after { display: none; }
    .nav-item.is-active > a { color: var(--primary); }
    .drop-panel { position: static; transform: none; opacity: 1; visibility: visible; display: none; width: 100%; min-width: 0; box-shadow: none; border-top: 0; padding: 4px 0 10px 10px; }
    .nav-item:hover .drop-panel { transform: none; }
    .nav-item.is-open .drop-panel { display: block; }
    .mega-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
    .mega-foot { display: none; }
    .hero { height: 480px; }
    .hero-content h1 { font-size: 36px; }
    .hero-scroll { display: none; }
    .advantage-grid { grid-template-columns: repeat(2, 1fr); }
    .advantage-item:nth-child(2) { border-right: 0; }
    .advantage-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .about-home { grid-template-columns: 1fr; gap: 36px; }
    .news-home { grid-template-columns: 1fr; }
    .news-feature { min-height: 320px; }
    .page-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .side-card { margin-bottom: 18px; }
    .detail-grid { grid-template-columns: 1fr; gap: 26px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .partner-wall { grid-template-columns: repeat(3, 1fr); }
    .partner-grid { grid-template-columns: repeat(2, 1fr); }
    .article-wrap { padding: 28px 24px; }
    .product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
    .sec { padding: 52px 0; }
    .sec-title { font-size: 26px; }
    .sec-head-row { flex-direction: column; align-items: flex-start; gap: 12px; }
    .page-hero { padding: 46px 0 38px; }
    .page-hero h1 { font-size: 28px; }
    .hero { height: 440px; }
    .hero-dots { bottom: 54px; }
    .hero-content h1 { font-size: 29px; margin-bottom: 12px; }
    .hero-content p { font-size: 14px; margin-bottom: 22px; }
    .hero-kicker { font-size: 11px; letter-spacing: 2px; margin-bottom: 12px; }
    .hero-actions .btn { flex: 1; min-width: 130px; padding: 0 16px; }
    .advantage-bar { margin-top: -34px; }
    .advantage-grid { grid-template-columns: 1fr; }
    .advantage-item { border-right: 0; border-bottom: 1px solid var(--line); padding: 20px; }
    .advantage-item:last-child { border-bottom: 0; }
    .cat-grid { grid-template-columns: 1fr; }
    .product-grid, .product-grid-3 { grid-template-columns: 1fr 1fr; gap: 14px; }
    .product-body { padding: 14px; }
    .product-body h3 { font-size: 15px; }
    .product-body p { display: none; }
    .about-points { grid-template-columns: 1fr; }
    .stat-row { grid-template-columns: 1fr 1fr; gap: 24px; }
    .stat-item strong { font-size: 28px; }
    .cta-inner { flex-direction: column; align-items: flex-start; gap: 20px; }
    .cta-inner h2 { font-size: 24px; }
    .news-card { grid-template-columns: 1fr; gap: 0; }
    .news-card-img { height: 200px; min-height: 0; }
    .news-card-body { padding: 18px; }
    .article-head h1 { font-size: 23px; }
    .article-wrap { padding: 22px 18px; }
    .related-grid { grid-template-columns: 1fr; }
    .content-panel { padding: 18px; }
    .panel-head { align-items: flex-start; }
    .search-box input { width: 100%; }
    .search-box { flex: 1; }
    .filter-bar { width: 100%; }
    .download-item { flex-wrap: wrap; gap: 12px; padding: 16px; }
    .download-body { flex-basis: calc(100% - 62px); }
    .download-meta { text-align: left; flex: 1; }
    .download-icon { width: 40px; height: 40px; }
    .detail-tab-head button { padding: 14px 18px; font-size: 14px; }
    .detail-tab-body { padding: 20px; }
    .manual-box { flex-wrap: wrap; }
    .manual-box .btn { margin-left: 0; width: 100%; }
    .contact-cards { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .contact-form-panel { padding: 22px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .partner-wall { grid-template-columns: repeat(2, 1fr); }
    .partner-grid { grid-template-columns: 1fr; }
    .footer-main { padding: 44px 0 34px; }
    .footer-bottom-inner { flex-direction: column; align-items: flex-start; }
    .back-top { right: 16px; bottom: 20px; }
    .mega-grid { grid-template-columns: 1fr; }
    .article-meta { gap: 10px 16px; }
}

@media (max-width: 420px) {
    .product-grid, .product-grid-3 { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 26px; }
    .brand-text strong { font-size: 19px; }
    .brand-text em { font-size: 10.5px; }
    .brand-mark { width: 38px; height: 38px; font-size: 22px; }
    .brand-logo { height: 34px; max-width: 190px; }
}