/* =========================================================
   富源晟科技 · 首页样式（覆盖原 site-v4.css / widgets.css）
   设计原则：统一卡片语言、收敛强调色、用留白替代线条
   ========================================================= */

:root {
        --fx-ink: #0b1120;
    --fx-ink-2: #111a2c;
    --fx-brand: #c8102e;
    --fx-brand-dark: #a50c25;
    --fx-line: #e8e8ec;
    --fx-muted: #757b87;
    --fx-paper-2: #f6f6f8;
    --ink: #0B1524;
    --ink-2: #4A5A70;
      --fx-head-h: 76px;
    --ink-3: #8593A6;
    --line: #E7ECF3;
    --soft: #F5F8FC;
    --brand: #1667FF;
    --brand-dark: #0A4FD1;
    --brand-soft: #EAF1FF;
    --deep: #081527;
    --radius: 16px;
    --shadow: 0 18px 44px -22px rgba(11, 21, 36, .38);
    --shadow-sm: 0 10px 28px -18px rgba(11, 21, 36, .35);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--ink);
    background: #fff;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.25; letter-spacing: -.01em; }
p { margin: 0; }

/* ============ Header ============ */
header.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1200;
    padding: 0;
    background: rgba(255, 255, 255, 1);
    -webkit-backdrop-filter: saturate(180%) blur(18px);
    backdrop-filter: saturate(180%) blur(18px);
    border-bottom: 1px solid rgba(11, 17, 32, .07);
    box-shadow: none;
    transition: height .3s ease, box-shadow .3s ease, background .3s ease;
}
header.site-header.scrolled {
    background: rgba(255, 255, 255, .97);
    box-shadow: 0 6px 30px rgba(11, 17, 32, .07);
    padding: 0;
}

.sh-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 32px;
    height: var(--fx-head-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    transition: height .3s ease;
}

header.site-header.scrolled .sh-inner {
    height: 66px;
}

.sh-logo {
    display: flex;
    align-items: center;
    gap: 11px;
    flex-shrink: 0;
}

.sh-logo img {
    height: 38px;
    width: auto;
    display: block;
    transition: height .3s ease;
}

header.site-header.scrolled .sh-logo img {
    height: 33px;
}

.sh-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.sh-logo-text strong {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: .06em;
    color: var(--fx-ink);
    font-family: 'Noto Sans SC', -apple-system, "PingFang SC", sans-serif;
}

.sh-logo-text em {
    font-style: normal;
    font-size: 8.5px;
    letter-spacing: .16em;
    color: #a2a7b2;
    margin-top: 6px;
    text-transform: uppercase;
}

/* 导航 */
.sh-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.sh-nav a {
    position: relative;
    display: inline-block;
    padding: 10px 27px;
    font-size: 14.5px;
    font-weight: 400;
    color: #3b4250;
    letter-spacing: .02em;
    white-space: nowrap;
    transition: color .25s ease;
}

.sh-nav a::after {
    content: '';
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 2px;
    height: 2px;
    background: var(--fx-brand);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .35s cubic-bezier(.25, 1, .5, 1);
}

.sh-nav a:hover {
    color: var(--fx-ink);
}

.sh-nav a:hover::after,
.sh-nav a.active::after {
    transform: scaleX(1);
}

.sh-nav a.active {
    color: var(--fx-ink);
    font-weight: 500;
}

.sh-actions {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-shrink: 0;
}

.sh-phone {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    color: #5b6270;
    letter-spacing: .02em;
}

.sh-phone i {
    color: var(--fx-brand);
    font-size: 12px;
}

.sh-phone:hover {
    color: var(--fx-ink);
}

.sh-cta {
    display: inline-flex;
    align-items: center;
    height: 38px;
    padding: 0 18px;
    background: var(--fx-ink);
    color: #fff;
    font-size: 13px;
    letter-spacing: .04em;
    border-radius: 2px;
    transition: background .3s ease;
}

.sh-cta:hover {
    background: var(--fx-brand);
    color: #fff;
}

.site-header .menu-toggle {
    display: none;
}
/* ================================================================
   导航下拉（一级项过多时把次级页面收进下拉）
   ================================================================ */
.sh-nav .sh-drop {
    position: relative;
    display: flex;
    align-items: center;
}

.sh-nav .sh-drop > a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.sh-nav .sh-drop > a i {
    font-size: 9px;
    opacity: .55;
    transition: transform .3s ease;
}

.sh-nav .sh-drop:hover > a i {
    transform: rotate(180deg);
}

.sh-drop-menu {
    position: absolute;
    top: 100%;
    left: 6px;
    min-width: 168px;
    padding: 8px 0;
    background: #fff;
    border: 1px solid rgba(11, 17, 32, .07);
    box-shadow: 0 22px 44px -18px rgba(11, 17, 32, .28);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity .28s ease, transform .28s ease, visibility .28s;
    z-index: 90;
}

.sh-drop-menu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
}

.sh-nav .sh-drop:hover .sh-drop-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sh-nav .sh-drop-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 13.5px;
    color: #3b4250;
    white-space: nowrap;
    transition: color .2s ease, background .2s ease, padding-left .25s ease;
}

.sh-nav .sh-drop-menu a::after {
    display: none;
}

.sh-nav .sh-drop-menu a:hover {
    color: var(--fx-brand);
    background: #fafbfc;
    padding-left: 24px;
}

.sh-nav .sh-drop-menu a.is-sub-on {
    color: var(--fx-brand);
    font-weight: 500;
}
.demand-modal-overlay {
    display: none !important;     
}
/* ============ Hero ============ */
/* ============ Hero ============ */
.fx-hero {
    position: relative;
    overflow: hidden;
    margin-top: var(--hdr);
    min-height: min(80px, calc(100vh - var(--hdr)));
    display: flex;
    flex-direction: column;
    background: var(--deep);
    height: 850px;
}

/* 左右滑动：slide 横向排列，靠 translateX 位移 */
.fx-slide {
    position: absolute;
    inset: 0;
    transform: translateX(100%);
    transition: transform .65s cubic-bezier(.4, 0, .2, 1);
    will-change: transform;
}
.fx-slide:first-child,
.fx-slide.is-active {
    transform: translateX(0);
}

/* 去掉 opacity 淡入，只保留 Ken Burns 缩放；
   非激活 slide 已被移出可视区，不需要靠 opacity 隐藏 */
.fx-media {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    transform: scale(1.06);
    transition: transform 7s ease;
}
.fx-slide.is-active .fx-media { transform: scale(1); }

/* 首帧禁用滑动动画，避免刷新时第一张从右侧滑入 */
.fx-no-anim .fx-slide { transition: none !important; }
.fx-no-anim .fx-media { transition: none !important; }
.fx-hero {
    position: relative;
    overflow: hidden;
    margin-top: var(--hdr);
    min-height: min(80px, calc(100vh - var(--hdr)));
    display: flex;
    flex-direction: column;
    background: var(--deep);
    height: 850px;
}
.fx-slide { position: absolute; inset: 0; }
.fx-media {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    opacity: 0; transform: scale(1.06);
    transition: opacity 1.1s ease, transform 7s ease;
}
.fx-slide.is-active .fx-media { opacity: 1; transform: scale(1); }
/* 遮罩拆成两层：底层 .fx-veil 是"淡遮罩"，::before 是"加深刻图层"。
   前两屏两层叠加 = 原来的 .8 / .5 / .8；第三屏把加深刻图层淡出（opacity 可过渡），
   切换时不会闪。 */
.fx-veil {
    position: absolute; inset: 0;
    /* background: linear-gradient(100deg,
            rgba(5, 13, 26, .80) 0%,
            rgba(5, 13, 26, .55) 34%,
            rgba(5, 13, 26, .46) 48%,
            rgba(5, 13, 26, .12) 62%,
            rgba(5, 13, 26, .16) 100%); */
}
/* .fx-veil::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(100deg,
            rgba(5, 13, 26, 0) 0%,
            rgba(5, 13, 26, .02) 34%,
            rgba(5, 13, 26, .13) 48%,
            rgba(5, 13, 26, .55) 62%,
            rgba(5, 13, 26, .76) 100%);
    opacity: 1;
    transition: opacity 1.1s ease;
} */
/* 第三屏是暗调棚拍的灯控器特写（p50≈11）：
   用 filter 提亮中间调/高光并压回黑位（等效 gamma .45 + 对比 1.35），
   再把加深刻图层淡出，让设备能看清。 */
.fx-slide[data-slide="2"] .fx-media { filter: brightness(2.28) contrast(.86); }
.fx-slide[data-slide="2"].is-active ~ .fx-veil::before { opacity: 0; }
.fx-hero-main {
    flex: 1;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 2;
    padding: 88px 0 32px;
}
.fx-inner { width: min(1200px, calc(100% - 48px)); margin-inline: auto; }
.fx-hero-copy { max-width: 680px; }

.fx-kicker {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 7px 16px; border-radius: 999px;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .18);
    backdrop-filter: blur(6px);
    color: rgba(255, 255, 255, .9);
    font-size: 13px; letter-spacing: .04em;
}
.fx-kicker i { color: #6FA8FF; font-size: 12px; }

.fx-hero-copy h1 {
    margin-top: 24px;
    font-size: clamp(34px, 4.6vw, 58px);
    line-height: 1.16;
    color: #fff;
    letter-spacing: -.02em;
}
.fx-hero-copy h1 span { color: rgba(255, 255, 255, .62); font-weight: 400; }

.fx-captions { position: relative; min-height: 76px; margin-top: 22px; }
.fx-caption {
    position: absolute; inset: 0;
    opacity: 0; transform: translateY(10px);
    transition: opacity .55s ease, transform .55s ease;
    pointer-events: none;
}
.fx-caption.is-active { opacity: 1; transform: none; pointer-events: auto; }
.fx-caption-title { display: block; font-size:50px; font-weight: 500; color: #fff; }
.fx-caption-sub {
    display: block; margin-top: 6px;
    font-size:26px; color: rgba(255, 255, 255, .9);
    line-height: 1;
}

.fx-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.fx-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 26px; border-radius: 999px;
    font-size: 15px; font-weight: 500; line-height: 1;
    transition: background .22s ease, transform .22s ease, color .22s ease, border-color .22s ease;
    white-space: nowrap;
}
.fx-btn i { font-size: 12px; }
.fx-btn-light { background: #fff; color: var(--ink); }
.fx-btn-light:hover { transform: translateY(-1px); box-shadow: 0 14px 30px -14px rgba(0, 0, 0, .5); }
.fx-btn-ghost { border: 1px solid rgba(255, 255, 255, .42); color: #fff; }
.fx-btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .7); }

.fx-hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.fx-hero-tags li {
    font-size: 12.5px; color: rgba(255, 255, 255, .6);
    padding: 5px 13px; border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, .16);
}

.fx-controls { position: relative; z-index: 2; padding: 24px 0 44px; }
.fx-controls .fx-inner {
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.fx-counter { font-size: 13px; color: rgba(255, 255, 255, .55); letter-spacing: .04em; }
.fx-counter b { color: #fff; font-weight: 500; }
.fx-progress { display: flex; align-items: center; gap: 10px; }
.fx-prog { padding: 6px 0; }
.fx-prog span {
    display: block; width: 34px; height: 2px; border-radius: 2px;
    background: rgba(255, 255, 255, .26);
    transition: background .25s ease, width .25s ease;
}
.fx-prog.is-active span { background: #fff; width: 46px; }
.fx-prog:hover span { background: rgba(255, 255, 255, .6); }
.fx-prog.is-active:hover span { background: #fff; }
.fx-arrows { display: flex; gap: 10px; }
.fx-arrow {
    width: 46px; height: 46px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid rgba(255, 255, 255, .28); color: #fff; font-size: 13px;
    transition: background .22s ease, border-color .22s ease;
}
.fx-arrow:hover { background: rgba(255, 255, 255, .14); border-color: rgba(255, 255, 255, .55); }

/* ============ 数据条 ============ */
.fx-strip {
    position: relative;
    z-index: 5;
    width: min(1200px, calc(100% - 48px));
    margin: -56px auto 0;
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow);
    padding: 28px 8px;
}
.fx-strip-inner { display: grid; grid-template-columns: repeat(4, 1fr); }     
.fx-strip-item { padding: 6px 28px; border-left: 1px solid var(--line); }
.fx-strip-item:first-child { border-left: 0; }
.fx-strip-item span { display: block; font-size: 13.5px; color: var(--ink-2); }
.fx-strip-item strong {
    display: flex; align-items: baseline; gap: 6px;
    margin-top: 8px;
    font-size: clamp(24px, 3vw, 32px); font-weight: 700;
    color: var(--ink); line-height: 1.1; letter-spacing: -.02em;
}
.fx-strip-item strong b { font-weight: 700; }
.fx-strip-item strong em { font-size: 13px; font-style: normal; font-weight: 400; color: var(--ink-3); }

/* ============ 通用区块 ============ */
.fys-sec { padding:40px 0; }
.fys-sec--tight { padding: 72px 0; }
.fys-sec--alt { background: var(--soft); }
.fys-wrap { width: min(1200px, calc(100% - 48px)); margin-inline: auto; }

.fys-head {
    display: flex; align-items: flex-end; justify-content: space-between;
    gap: 32px; margin-bottom: 48px;
}
.fys-head > div { max-width: 640px; }
.fys-label {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 500; letter-spacing: .12em;
    text-transform: uppercase; color: var(--brand); margin-bottom: 14px;
}
.fys-label::before { content: ''; width: 20px; height: 2px; background: var(--brand); border-radius: 2px; }
.fys-head h2 { font-size: clamp(26px, 3vw, 38px); }
.fys-head p { margin-top: 14px; font-size: 15.5px; color: var(--ink-2); line-height: 1.75; }

.fys-more, .fys-partners-more {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 14.5px; font-weight: 500; color: var(--brand);
    padding-bottom: 2px; border-bottom: 1px solid transparent;
    transition: border-color .22s ease; white-space: nowrap;
}
.fys-more i, .fys-partners-more i { transition: transform .22s ease; font-size: 12px; }
.fys-more:hover, .fys-partners-more:hover { border-color: var(--brand); }
.fys-more:hover i, .fys-partners-more:hover i { transform: translateX(4px); }

/* ============ 产品 ============ */
.fys-products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.fys-product {
    display: flex; flex-direction: column;
    border: 1px solid var(--line); border-radius: var(--radius);
    background: #fff; overflow: hidden;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.fys-product:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.fys-product-media {
    position: relative;
    aspect-ratio: 4 / 3;
    display: flex; align-items: center; justify-content: center;
    padding: 0;
    overflow: hidden;
    background: #eef0f3;
}
.fys-product-media img {
    width: 100%; height: 100%; object-fit: contain;
    transition: transform .45s ease;
}
.fys-product:hover .fys-product-media img { transform: scale(1.04); }
.fys-product-tag {
    position: absolute; top: 16px; left: 16px;
    padding: 4px 11px; border-radius: 999px;
    background: rgba(255, 255, 255, .94); color: var(--brand);
    font-size: 12px; font-weight: 500;
    box-shadow: 0 2px 10px rgba(11, 21, 36, .12);
}
.fys-product-num {
    position: absolute; top: 12px; right: 20px;
    font-size: 44px; font-weight: 700;
    color: rgba(11, 21, 36, .10);
    line-height: 1; letter-spacing: -.04em;
    pointer-events: none;
}
.fys-product-body {
    display: flex; flex-direction: column; gap: 10px;
    padding: 26px 26px 28px; flex: 1;
}
.fys-product-cat { font-size: 12px; letter-spacing: .06em; color: var(--brand); }
.fys-product-body h3 { font-size: 20px; }
.fys-product-body > p {
    font-size: 14px; color: var(--ink-2); line-height: 1.7;
    display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical;
    overflow: hidden; min-height: 48px;
}
.fys-product-spec {
    display: flex; gap: 26px;
    padding: 14px 0; margin: 2px 0;
    border-top: 1px dashed var(--line);
    border-bottom: 1px dashed var(--line);
    font-size: 12.5px; color: var(--ink-3);
}
.fys-product-spec b { display: block; margin-top: 3px; font-size: 14px; font-weight: 600; color: var(--ink); }
.fys-product-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.fys-product-chips li {
    padding: 4px 10px; border-radius: 6px;
    background: var(--soft); color: var(--ink-2); font-size: 12px;
}
.fys-product-more {
    display: inline-flex; align-items: center; gap: 7px;
    margin-top: auto; padding-top: 8px;
    font-size: 14px; font-weight: 500; color: var(--brand);
}
.fys-product-more i { font-size: 11px; transition: transform .22s ease; }
.fys-product:hover .fys-product-more i { transform: translateX(4px); }

/* ============ 合作伙伴 ============ */
.fys-partners-head {
    display: flex; align-items: flex-end; justify-content: space-between;
    gap: 32px; margin-bottom: 36px;
}
.fys-partners-title { max-width: 640px; }
.fys-partners-title h2 { font-size: clamp(26px, 3vw, 38px); }
.fys-partners-title p { margin-top: 14px; font-size: 15.5px; color: var(--ink-2); }

.fys-marquee {
    overflow: hidden;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}
.fys-marquee-track {
    display: flex; width: max-content;
    animation: fys-marquee 46s linear infinite;
}
.fys-marquee:hover .fys-marquee-track { animation-play-state: paused; }
.fys-marquee-group { display: flex; gap: 16px; padding-right: 16px; }
.fys-marquee-group li {
    display: flex; align-items: center; gap: 13px;
    min-width: 246px; padding: 16px 22px;
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    transition: border-color .25s ease, box-shadow .25s ease;
}
.fys-marquee-group li:hover { border-color: #CFDDF5; box-shadow: var(--shadow-sm); }
.fys-logo-mark { display: inline-flex; width: 26px; height: 26px; flex-shrink: 0; }
.fys-logo-mark svg {
    width: 26px; height: 26px; fill: none;
    stroke: var(--brand); stroke-width: 1.5;
    stroke-linejoin: round; stroke-linecap: round;
}
.fys-logo-name { display: block; font-size: 14.5px; font-weight: 500; color: var(--ink); }
.fys-logo-sub {
    display: block; font-size: 11px;
    letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3);
}
@keyframes fys-marquee { to { transform: translateX(-50%); } }

/* ============ 一站式能力 ============ */
.fys-caps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.fys-cap {
    padding: 30px; border-radius: var(--radius);
    background: #fff; border: 1px solid var(--line);
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.fys-cap:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.fys-cap-top {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 18px;
}
.fys-cap-top i {
    display: inline-flex; align-items: center; justify-content: center;
    width: 48px; height: 48px; border-radius: 14px;
    background: var(--brand-soft); color: var(--brand); font-size: 19px;
}
.fys-cap-top em {
    font-style: normal; font-size: 13px; font-weight: 500;
    color: var(--ink-3); letter-spacing: .06em;
}
.fys-cap h3 { font-size: 17px; margin-bottom: 10px; }
.fys-cap p { font-size: 14px; color: var(--ink-2); line-height: 1.75; }

/* ============ 解决方案 ============ */
.fys-ind { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.fys-ind-row {
    position: relative; display: block; padding: 26px 24px;
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
}
.fys-ind-row em {
    display: inline-block; font-style: normal;
    font-size: 12px; font-weight: 500;
    color: var(--brand); letter-spacing: .06em;
}
.fys-ind-row h4 { margin-top: 10px; font-size: 16px; padding-right: 26px; }
.fys-ind-row p { margin-top: 8px; font-size: 13px; color: var(--ink-2); line-height: 1.7; }
.fys-ind-row i {
    position: absolute; top: 26px; right: 22px;
    font-size: 11px; color: var(--ink-3);
    transition: transform .25s ease, color .25s ease;
}
.fys-ind-row:hover {
    border-color: #BFD6FF;
    box-shadow: 0 16px 34px -22px rgba(22, 103, 255, .55);
    transform: translateY(-2px);
}
.fys-ind-row:hover i { color: var(--brand); transform: translateX(4px); }

/* ============ 案例 ============ */
.fys-cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.fys-case { display: block; }
.fys-case-media {
    position: relative; aspect-ratio: 4 / 3;
    border-radius: var(--radius); overflow: hidden;
    background: var(--soft);
}
.fys-case-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.fys-case:hover .fys-case-media img { transform: scale(1.06); }
.fys-case-tag {
    position: absolute; top: 16px; left: 16px;
    padding: 5px 13px; border-radius: 999px;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(6px);
    font-size: 12px; font-weight: 500; color: var(--ink);
}
.fys-case-body { padding: 18px 4px 0; }
.fys-case-body h4 { font-size: 17px; margin-bottom: 6px; transition: color .22s ease; }
.fys-case:hover .fys-case-body h4 { color: var(--brand); }
.fys-case-body p { font-size: 14px; color: var(--ink-2); line-height: 1.7; }

/* ============ CTA ============ */
.fys-cta {
    position: relative; overflow: hidden;
    padding: 80px 0;
    background: linear-gradient(115deg, #0A2A5E 0%, #0B1524 68%);
}
.fys-cta::after {
    content: ''; position: absolute;
    right: -140px; top: -160px;
    width: 480px; height: 480px; border-radius: 50%;
    background: radial-gradient(circle, rgba(22, 103, 255, .38), transparent 68%);
    pointer-events: none;
}
.fys-cta-in {
    position: relative; z-index: 2;
    display: flex; align-items: center; justify-content: space-between;
    gap: 40px; flex-wrap: wrap;
}
.fys-cta h2 { font-size: clamp(24px, 3vw, 34px); color: #fff; margin-bottom: 12px; }
.fys-cta p { font-size: 15px; color: rgba(255, 255, 255, .66); max-width: 520px; }
.fys-cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ============ Footer ============ */
footer { background: #07101E; color: rgba(255, 255, 255, .6); padding-top: 72px; }
footer .container { width: min(1200px, calc(100% - 48px)); margin-inline: auto; }
.footer-content {
    display: grid;
    grid-template-columns: 1.7fr 1fr 1fr 1fr .9fr;
    gap: 40px; padding-bottom: 56px;
}
.footer-col h4 { font-size: 15px; font-weight: 500; color: #fff; margin-bottom: 18px; }
.footer-col p { font-size: 13.5px; line-height: 1.85; }
.footer-links a {
    display: inline-block; padding: 5px 0; font-size: 13.5px;
    transition: color .2s ease, transform .2s ease;
}
.footer-links a:hover { color: #fff; transform: translateX(3px); }
.footer-qr img { width: 100px; padding: 5px; border-radius: 10px; background: #fff; }
.footer-qr p { margin-top: 10px; font-size: 12px; }
.footer-bottom {
    padding: 22px 0;
    border-top: 1px solid rgba(255, 255, 255, .09);
    text-align: center; font-size: 12.5px;
}
.footer-bottom a { color: rgba(255, 255, 255, .45); transition: color .2s ease; }
.footer-bottom a:hover { color: #fff; }

/* ============ 返回顶部 ============ */
.fx-top {
    position: fixed; right: 24px; bottom: 24px; z-index: 90;
    width: 46px; height: 46px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    background: #fff; color: var(--ink);
    border: 1px solid var(--line);
    box-shadow: 0 12px 28px -14px rgba(11, 21, 36, .5);
    transition: color .2s ease, transform .2s ease;
}
.fx-top:hover { color: var(--brand); transform: translateY(-2px); }

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
    .fys-ind { grid-template-columns: repeat(2, 1fr); }
    .footer-content { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
    .footer-content > .footer-col:last-child { grid-column: 1 / -1; }
}

@media (max-width: 960px) {
    :root { --hdr: 64px; }

    .sh-nav {
        position: fixed; top: var(--hdr); left: 0; right: 0;
        flex-direction: column; align-items: stretch; gap: 0;
        padding: 8px 24px 24px;
        background: #fff; border-bottom: 1px solid var(--line);
        box-shadow: 0 20px 40px -24px rgba(11, 21, 36, .4);
        transform: translateY(-12px); opacity: 0; visibility: hidden;
        transition: opacity .25s ease, transform .25s ease, visibility .25s;
        max-height: calc(100vh - var(--hdr)); overflow-y: auto;
    }
    .sh-nav.is-open { opacity: 1; visibility: visible; transform: none; }
    .sh-nav > a, .sh-drop > a {
        padding: 14px 4px; border-radius: 0;
        border-bottom: 1px solid var(--line); font-size: 15.5px;
    }
    .sh-drop-menu {
        position: static; transform: none; min-width: 0;
        padding: 4px 0 4px 16px; border: 0; box-shadow: none;
        opacity: 1; visibility: visible; pointer-events: auto; background: none;
    }
    .sh-drop-menu a {
        padding: 10px 4px;
        border-bottom: 1px dashed var(--line); border-radius: 0;
    }
    .menu-toggle { display: inline-flex; }
    .sh-actions .sh-cta { display: none; }
    .sh-logo img { height: 32px; }
    .sh-logo-text strong { font-size: 16px; }
    .sh-logo-text em { display: none; }

    .fys-sec { padding: 72px 0; }
    .fys-head { flex-direction: column; align-items: flex-start; gap: 18px; margin-bottom: 36px; }
    .fx-hero-main { padding: 64px 0 24px; }

    .fys-products { grid-template-columns: repeat(2, 1fr); }
    .fys-caps { grid-template-columns: repeat(2, 1fr); }
    .fys-cases { grid-template-columns: repeat(2, 1fr); }

    .fx-strip { margin-top: -44px; padding: 22px 4px; }
    .fx-strip-inner { grid-template-columns: repeat(2, 1fr); row-gap: 12px; }
    .fx-strip-item:nth-child(3) { border-left: 0; }

    .footer-content { grid-template-columns: 1fr 1fr; gap: 32px; }
    .footer-content > .footer-col:last-child { grid-column: auto; }
}

@media (max-width: 640px) {
    .fys-wrap, .fx-inner, .sh-inner, footer .container { width: calc(100% - 40px); }
    .fys-sec { padding: 60px 0; }

    .fx-hero { min-height: auto; }
    .fx-hero-copy h1 { font-size: 32px; }
    .fx-captions { min-height: 88px; }
    .fx-caption-title { font-size: 17px; }
    .fx-caption-sub { font-size: 14px; }
    .fx-hero-actions .fx-btn { flex: 1 1 auto; }
    .fx-hero-tags { display: none; }
    .fx-controls .fx-inner { flex-direction: column; align-items: flex-start; gap: 16px; }

    .fx-strip {
        width: calc(100% - 40px);
        margin-top: -36px;
        border-radius: 16px;
        padding: 18px 4px;
    }
    .fx-strip-item { padding: 8px 16px; }
    .fx-strip-item strong { font-size: 22px; }

    .fys-products, .fys-caps, .fys-ind, .fys-cases { grid-template-columns: 1fr; }
    .fys-product-media { height: 190px; }
    .fys-case-media { aspect-ratio: 16 / 11; }

    .fys-cta { padding: 60px 0; }
    .fys-cta-actions { width: 100%; }
    .fys-cta-actions .fx-btn { flex: 1 1 auto; }

    .footer-content { grid-template-columns: 1fr; gap: 28px; padding-bottom: 40px; }
    .fx-top { right: 16px; bottom: 16px; width: 42px; height: 42px; }
}

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
    html { scroll-behavior: auto; }
}