/* ============================================================
   国旭科技 · 安全服务栏目统一设计系统 v3
   阿里云式浅色简洁风：白色导航 / 浅色 Hero(左文右图) /
   吸顶锚点导航 / 白卡片细边框 / 蓝色主色 #0052D9
   ============================================================ */
:root {
    --gx-primary: #0052D9;
    --gx-primary-dark: #0040B0;
    --gx-blue: #2E7BFF;
    --gx-link: #0052D9;
    --gx-text: #161E3C;
    --gx-text2: #4E5969;
    --gx-text3: #86909C;
    --gx-border: #E5E8EF;
    --gx-bg: #F5F7FB;
    --gx-bg-blue: #F0F6FF;
}

.sec-page { background: #fff; font-family: "Microsoft YaHei", "PingFang SC", sans-serif; }
.sec-page img { max-width: 100%; }
.sec-container { width: 1200px; max-width: 100%; margin: 0 auto; padding: 0 15px; box-sizing: border-box; }
.sec-page .sec-container p { margin: 0; }
.sec-page section[id] { scroll-margin-top: 128px; }

/* ---------------- Hero 浅色区(左文右图) ---------------- */
.sec-hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #F2F7FF 0%, #FAFCFF 60%, #FFFFFF 100%);
    color: var(--gx-text);
    padding: 96px 0 84px;
}
/* 右上淡蓝光斑 + 细网格 */
.sec-hero::before {
    content: '';
    position: absolute;
    width: 560px;
    height: 560px;
    right: -160px;
    top: -220px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 82, 217, 0.08) 0%, rgba(46, 123, 255, 0.05) 45%, transparent 70%);
}
.sec-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
            linear-gradient(rgba(0, 82, 217, 0.035) 1px, transparent 1px),
            linear-gradient(90deg, rgba(0, 82, 217, 0.035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: linear-gradient(120deg, transparent 30%, rgba(0,0,0,.85) 100%);
    -webkit-mask-image: linear-gradient(120deg, transparent 30%, rgba(0,0,0,.85) 100%);
    pointer-events: none;
}
.sec-hero .sec-container { position: relative; z-index: 2; }
.sec-hero__crumb { font-size: 13px; color: var(--gx-text3); margin-bottom: 34px; }
.sec-hero__crumb a { color: var(--gx-text3); text-decoration: none; }
.sec-hero__crumb a:hover { color: var(--gx-primary); }
.sec-hero__inner { display: flex; align-items: center; gap: 70px; }
/* 图标放右侧 */
.sec-hero__icon { order: 2; }
.sec-hero__body { order: 1; flex: 1; min-width: 0; }
/* 右侧控制台模拟面板 */
.sec-hero__icon {
    flex: none;
    width: 380px;
    border-radius: 14px;
    background: #fff;
    border: 1px solid #DCE7FA;
    box-shadow: 0 30px 70px rgba(0, 50, 160, 0.14), 0 4px 14px rgba(0, 50, 160, 0.06);
    overflow: hidden;
}
.sec-mock__bar {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 34px;
    padding: 0 14px;
    background: #F2F6FC;
    border-bottom: 1px solid #E8EEF8;
}
.sec-mock__bar i { width: 9px; height: 9px; border-radius: 50%; background: #D4DEED; }
.sec-mock__bar i:first-child { background: #FF9F5A; }
.sec-mock__bar i:nth-child(2) { background: #FFD35A; }
.sec-mock__bar i:nth-child(3) { background: #7ED38A; }
.sec-mock__bar span {
    flex: 1;
    margin-left: 8px;
    height: 20px;
    line-height: 20px;
    padding: 0 10px;
    border-radius: 10px;
    background: #fff;
    border: 1px solid #E4EBF6;
    color: #9AA8C2;
    font-size: 11px;
}
.sec-mock__head { display: flex; align-items: center; gap: 12px; padding: 18px 20px 14px; }
.sec-mock__logo {
    width: 46px; height: 46px; border-radius: 12px; flex: none;
    display: flex; align-items: center; justify-content: center;
    background: #F0F6FF; border: 1px solid #DCE7FA;
}
.sec-mock__head b { display: block; font-size: 16px; color: #161E3C; }
.sec-mock__head span { display: block; margin-top: 3px; font-size: 12px; color: #86909C; }
.sec-mock__body { padding: 0 20px 20px; }
.sec-mock__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 0;
    border-bottom: 1px dashed #E8EEF8;
}
.sec-mock__row span { font-size: 13px; color: #4E5969; }
.sec-mock__row b { font-size: 17px; color: #0052D9; font-weight: 700; font-family: Arial, sans-serif; }
.sec-mock__row .up { color: #7ED38A; font-size: 12px; margin-left: 6px; }
.sec-mock__foot {
    margin-top: 16px;
    height: 6px;
    border-radius: 3px;
    background: #EDF3FD;
    overflow: hidden;
    position: relative;
}
.sec-mock__foot::after {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 72%;
    border-radius: 3px;
    background: linear-gradient(90deg, #0052D9, #2E7BFF);
}
.sec-hero__tag {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    color: var(--gx-primary);
    margin-bottom: 16px;
}
.sec-hero__tag::before {
    content: '';
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--gx-primary);
    margin-right: 8px;
}
.sec-hero__title { font-size: 40px; line-height: 1.25; font-weight: 700; color: #0B1230; margin: 0 0 8px; letter-spacing: 1px; }
.sec-hero__en { display: none; }
.sec-hero__sub { font-size: 16px; line-height: 1.95; color: var(--gx-text2); max-width: 600px; }
.sec-hero__actions { margin-top: 34px; display: flex; gap: 16px; }

.sec-btn {
    display: inline-block;
    height: 46px;
    line-height: 44px;
    padding: 0 32px;
    border-radius: 6px;
    font-size: 15px;
    text-decoration: none;
    box-sizing: border-box;
    transition: all .25s;
    cursor: pointer;
}
.sec-btn--primary {
    color: #fff;
    background: #0049C8;
    box-shadow: none;
}
.sec-btn--primary:hover { background: #003DA6; transform: none; box-shadow: none; color: #fff; }
.sec-btn--ghost { color: var(--gx-primary); border: 1px solid var(--gx-primary); background: #fff; }
.sec-btn--ghost:hover { background: #F0F6FF; border-color: #003DA6; color: #003DA6; }

/* Hero 数据带(白卡片) */
.sec-stats { display: flex; gap: 16px; margin-top: 48px; }
.sec-stat { flex: 1; padding: 6px 8px 0; }
.sec-stat + .sec-stat { border-left: 1px solid var(--gx-border); padding-left: 34px; }
.sec-stat b { display: block; font-size: 30px; font-weight: 700; color: #101A38; font-family: Arial, sans-serif; letter-spacing: -0.5px; }
.sec-stat b em { font-style: normal; font-size: 14px; font-weight: 400; color: var(--gx-text2); margin-left: 4px; }
.sec-stat span { display: block; margin-top: 8px; font-size: 13px; color: var(--gx-text3); }

/* ---------------- 吸顶锚点导航 ---------------- */
.sec-tabs {
    position: sticky;
    top: 63px;
    z-index: 60;
    background: rgba(255, 255, 255, 0.96);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--gx-border);
    box-shadow: 0 4px 16px rgba(22, 30, 60, 0.04);
}
.sec-tabs__inner { display: flex; align-items: center; gap: 8px; height: 56px; }
.sec-tabs__inner a {
    display: inline-block;
    height: 56px;
    line-height: 56px;
    padding: 0 18px;
    font-size: 15px;
    color: var(--gx-text2);
    text-decoration: none;
    position: relative;
    transition: color .2s;
}
.sec-tabs__inner a::after {
    content: '';
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 0;
    height: 2px;
    background: var(--gx-primary);
    transform: scaleX(0);
    transition: transform .2s;
}
.sec-tabs__inner a:hover { color: var(--gx-primary); }
.sec-tabs__inner a.is-active { color: var(--gx-primary); font-weight: 700; }
.sec-tabs__inner a.is-active::after { transform: scaleX(1); }
.sec-tabs__inner .sec-tabs__cta {
    margin-left: auto;
    height: 34px;
    line-height: 32px;
    padding: 0 22px;
    border-radius: 17px;
    color: #fff;
    background: var(--gx-primary);
}
.sec-tabs__inner .sec-tabs__cta::after { display: none; }
.sec-tabs__inner .sec-tabs__cta:hover { background: var(--gx-primary-dark); color: #fff; }

/* ---------------- 内容区通用 ---------------- */
.sec-section { padding: 76px 0; }
.sec-section--gray { background: var(--gx-bg); }
.sec-head { text-align: center; margin-bottom: 42px; }
.sec-head__tag { display: none; }
.sec-head__title { font-size: 29px; font-weight: 700; color: #0F1533; margin: 0; letter-spacing: 1px; }
.sec-head__desc { font-size: 15px; line-height: 1.9; color: var(--gx-text3); max-width: 760px; margin: 22px auto 0; }
.sec-head--left { text-align: left; }
.sec-head--left .sec-head__desc { margin-left: 0; }

/* 概述图文排 */
.sec-overview { display: flex; gap: 60px; align-items: center; }
.sec-overview__text { flex: 1.15; min-width: 0; }
.sec-overvice-lead { font-size: 16px; line-height: 2.05; color: var(--gx-text2); text-align: justify; }
.sec-overview__points { margin-top: 26px; }
.sec-overview__points li {
    list-style: none;
    position: relative;
    padding-left: 26px;
    font-size: 15px;
    line-height: 2.1;
    color: var(--gx-text2);
}
.sec-overview__points li::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 13px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--gx-primary);
    box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.12);
}
.sec-overview__visual { flex: 1; min-width: 0; }
.sec-overview__visual .sec-panel { margin: 0; }

/* 亮色面板 */
.sec-panel {
    margin: 60px auto 0;
    border-radius: 12px;
    background: #fff;
    border: 1px solid var(--gx-border);
    box-shadow: 0 16px 40px rgba(22, 30, 60, 0.06);
    padding: 34px 38px;
}

/* ---------------- 卡片 ---------------- */
.sec-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sec-cards--4 { grid-template-columns: repeat(4, 1fr); }
.sec-cards--2 { grid-template-columns: repeat(2, 1fr); }
.sec-card {
    background: #fff;
    border: 1px solid var(--gx-border);
    border-radius: 10px;
    padding: 30px 26px;
    transition: all .25s;
    position: relative;
    overflow: hidden;
}
.sec-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0;
    width: 100%; height: 3px;
    background: var(--gx-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s;
}
.sec-card:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(16, 26, 56, 0.09); border-color: rgba(0, 82, 217, 0.38); }
.sec-card:hover::before { transform: scaleX(1); }
/* 卡片作为外链入口 */
a.sec-card { text-decoration: none; display: block; }
a.sec-card .sec-card__title { color: var(--gx-text); }
a.sec-card:hover .sec-card__title { color: var(--gx-primary); }

.sec-card__icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gx-bg-blue);
    margin-bottom: 18px;
}
.sec-card__title {
    font-size: 18px; font-weight: 700; color: var(--gx-text); margin: 0 0 10px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sec-card__desc {
    font-size: 14px; line-height: 1.85; color: var(--gx-text3);
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
    overflow: hidden; min-height: 78px;
}
.sec-card__desc p { margin: 4px 0; }

/* ---------------- 优势/场景 行带 ---------------- */
.sec-rows { display: flex; flex-direction: column; gap: 18px; }
.sec-row {
    display: flex;
    gap: 26px;
    background: #fff;
    border: 1px solid var(--gx-border);
    border-radius: 10px;
    padding: 26px 30px;
    transition: all .25s;
}
.sec-row:hover { box-shadow: 0 14px 34px rgba(0, 82, 217, 0.09); border-color: rgba(0, 82, 217, 0.3); }
.sec-row__num {
    flex: none;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    font-weight: 700;
    color: var(--gx-primary);
    background: var(--gx-bg-blue);
    border: 1px solid rgba(0, 82, 217, 0.25);
}
.sec-row__body h3 { margin: 0 0 8px; font-size: 18px; color: var(--gx-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sec-row__body p { font-size: 14px; line-height: 1.85; color: var(--gx-text3); }

/* 场景标签 */
.sec-chips { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.sec-chip {
    padding: 13px 30px;
    border-radius: 6px;
    background: #fff;
    border: 1px solid #E2E7F0;
    font-size: 15px;
    color: var(--gx-text2);
    transition: border-color .2s, color .2s;
}
.sec-chip b { color: var(--gx-text); }
.sec-chip:hover { border-color: #0052D9; color: #0052D9; }

/* ---------------- 表格 ---------------- */
.sec-table-wrap { overflow-x: auto; border-radius: 10px; border: 1px solid var(--gx-border); background: #fff; box-shadow: 0 10px 30px rgba(22,30,60,.04); }
.sec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.sec-table th, .sec-table td { padding: 15px 18px; text-align: center; border-bottom: 1px solid var(--gx-border); color: var(--gx-text2); }
.sec-table thead th { background: var(--gx-bg-blue); color: var(--gx-text); font-size: 15px; font-weight: 700; }
.sec-table tbody tr:nth-child(even) { background: #FAFBFD; }
.sec-table tbody tr:hover { background: #F0F6FF; }
.sec-table td:first-child, .sec-table th:first-child { text-align: left; font-weight: 700; color: var(--gx-text); }
.sec-yes { display: inline-block; width: 16px; height: 16px; position: relative; }
.sec-yes::before {
    content: '';
    position: absolute;
    left: 2px; top: 2px;
    width: 8px; height: 4px;
    border-left: 2px solid var(--gx-primary);
    border-bottom: 2px solid var(--gx-primary);
    transform: rotate(-45deg);
}

/* ---------------- 流程 ---------------- */
.sec-steps { display: flex; gap: 0; }
.sec-step { flex: 1; position: relative; text-align: center; padding: 0 12px; }
.sec-step__dot {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 2px solid rgba(0, 82, 217, 0.30);
    box-shadow: 0 8px 20px rgba(0, 82, 217, 0.10);
}
.sec-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 31px;
    left: calc(50% + 42px);
    width: calc(100% - 84px);
    height: 2px;
    background: repeating-linear-gradient(90deg, rgba(0, 82, 217, 0.35) 0 8px, transparent 8px 16px);
}
.sec-step h3 { margin: 0 0 8px; font-size: 17px; color: var(--gx-text); }
.sec-step p { font-size: 13px; line-height: 1.8; color: var(--gx-text3); }

/* ---------------- 客户案例 ---------------- */
.sec-cases { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.sec-case {
    background: #fff;
    border: 1px solid var(--gx-border);
    border-radius: 10px;
    padding: 26px 20px;
    text-align: center;
    transition: all .25s;
}
.sec-case:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(0, 82, 217, 0.10); }

/* 横版案例卡(建站等网站截图类) */
.sec-case--wide { padding: 14px 14px 18px; }
.sec-case--wide .sec-case__logo {
    height: 132px;
    overflow: hidden;
    border-radius: 6px;
    background: #F7F8FA;
}
.sec-case--wide .sec-case__logo img {
    width: 100%; height: 100%;
    max-width: none; max-height: none;
    object-fit: cover;
    transition: transform .3s;
}
.sec-case--wide:hover .sec-case__logo img { transform: scale(1.04); }
.sec-case--wide .sec-case__tag { margin-top: 12px; }
.sec-case__logo {
    height: 66px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.sec-case__logo img {
    max-height: 52px;
    max-width: 82%;
    width: auto;
    object-fit: contain;
}
.sec-case__tag { margin-top: 10px; font-size: 12px; color: var(--gx-text3); }
.sec-cases-note { text-align: center; margin-top: 26px; font-size: 13px; color: var(--gx-text3); }

/* ---------------- 底部 CTA(蓝色横幅) ---------------- */
.sec-cta {
    position: relative;
    overflow: hidden;
    background: linear-gradient(115deg, #063A8C 0%, #0049C8 55%, #1D63D8 100%);
    color: #fff;
    padding: 58px 0;
}
.sec-cta::before {
    content: '';
    position: absolute;
    width: 460px;
    height: 460px;
    right: -140px;
    top: -230px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.16), transparent 70%);
}
.sec-cta .sec-container { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.sec-cta__title { font-size: 26px; font-weight: 700; margin: 0 0 8px; }
.sec-cta__desc { font-size: 14px; color: rgba(255, 255, 255, 0.85); }
.sec-cta .sec-btn--primary { background: #fff; color: var(--gx-primary); box-shadow: 0 8px 20px rgba(0, 20, 60, 0.25); }
.sec-cta .sec-btn--primary:hover { background: #F0F6FF; color: var(--gx-primary-dark); }

/* ---------------- 落地页产品网格 ---------------- */
.sec-products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sec-product {
    display: block;
    text-decoration: none;
    background: #fff;
    border: 1px solid var(--gx-border);
    border-radius: 12px;
    padding: 34px 30px 28px;
    position: relative;
    overflow: hidden;
    transition: all .3s;
}
.sec-product::after {
    content: '';
    position: absolute;
    right: -46px;
    top: -46px;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 82, 217, 0.10), transparent 70%);
    opacity: 0;
    transition: opacity .3s;
}
.sec-product:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(16, 26, 56, 0.10); border-color: rgba(0, 82, 217, 0.42); }
.sec-product:hover::after { opacity: 1; }
.sec-product__icon {
    width: 62px;
    height: 62px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gx-bg-blue);
    margin-bottom: 20px;
    transition: transform .3s;
}
.sec-product:hover .sec-product__icon { transform: scale(1.08); }
.sec-product__name { display: flex; align-items: baseline; gap: 10px; margin-bottom: 10px; min-height: 28px; }
.sec-product__name h3 { margin: 0; font-size: 20px; font-weight: 700; color: var(--gx-text); }
.sec-product__name span { font-size: 12px; letter-spacing: 1px; color: var(--gx-text3); text-transform: uppercase; }
.sec-product__desc {
    font-size: 14px; line-height: 1.8; color: var(--gx-text3); min-height: 51px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.sec-product__more {
    display: inline-block;
    margin-top: 16px;
    font-size: 14px;
    color: var(--gx-primary);
    text-decoration: none;
}
.sec-product__more::after { content: ' →'; transition: margin .25s; }
.sec-product:hover .sec-product__more::after { margin-left: 6px; }

/* 渐显动画已停用(滚动闪烁), 内容直接呈现 */
.sec-reveal { opacity: 1; transform: none; }

/* ---------------- 响应式(基础适配) ---------------- */
@media screen and (max-width: 1220px) {
    .sec-container { width: 100%; }
}
@media screen and (max-width: 992px) {
    .sec-hero { padding: 60px 0 56px; }
    .sec-hero__inner { flex-direction: column; text-align: center; gap: 30px; }
    .sec-hero__icon { order: 1; }
    .sec-hero__body { order: 2; }
    .sec-hero__sub { margin: 0 auto; }
    .sec-hero__actions { justify-content: center; }
    .sec-overview { flex-direction: column; }
    .sec-cards, .sec-products { grid-template-columns: repeat(2, 1fr); }
    .sec-cards--4 { grid-template-columns: repeat(2, 1fr); }
    .sec-cases { grid-template-columns: repeat(2, 1fr); }
    .sec-steps { flex-wrap: wrap; gap: 26px; }
    .sec-step { flex: 1 1 40%; }
    .sec-step:not(:last-child)::after { display: none; }
    .sec-cta .sec-container { flex-direction: column; text-align: center; }
    .sec-stats { flex-wrap: wrap; }
    .sec-stat { flex: 1 1 40%; }
    .sec-tabs__inner { overflow-x: auto; }
}
@media screen and (max-width: 640px) {
    .sec-hero { padding: 44px 0; }
    .sec-hero__icon { width: 100%; max-width: 340px; }
    .sec-mock__row { padding: 11px 0; }
    .sec-tabs__inner a { padding: 0 12px; font-size: 14px; }
    .sec-hero__title { font-size: 30px; }
    .sec-section { padding: 46px 0; }
    .sec-cards, .sec-products, .sec-cards--4, .sec-cases { grid-template-columns: 1fr; }
    .sec-row { flex-direction: column; }
}