/* ==========================================================================
   镒凯精密液压 · 全站样式
   浅色工业风 / 天蓝强调 / 全站响应式
   ========================================================================== */

:root {
    --ink: #0a1b26;
    --ink-2: #223a49;
    --muted: #60717e;
    --muted-2: #8495a1;
    --line: #e1e9ef;
    --line-2: #d3e0e9;
    --bg: #f5f8fb;
    --white: #ffffff;
    --brand: #0e7fb8;
    --brand-2: #0a6289;
    --brand-3: #0a4f6f;
    --brand-soft: #e8f4fa;
    --brand-line: #c9e4f2;
    --steel: #8fa5b4;
    --ok: #12805c;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 6px 20px rgba(10, 27, 38, .06);
    --shadow-md: 0 18px 44px rgba(10, 27, 38, .09);
    --shadow-lg: 0 30px 70px rgba(10, 27, 38, .12);
    --max: 1200px;
    --header-h: 110px;
    --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    padding-top: var(--header-h);
    background: var(--white);
    color: var(--ink);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; }
strong { font-weight: 650; }
::selection { background: rgba(14, 127, 184, .18); }

.container { width: min(var(--max), calc(100% - 64px)); margin: 0 auto; }
.container-narrow { width: min(880px, calc(100% - 64px)); margin: 0 auto; }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------------- 通用文字与标签 ---------------- */

.kicker {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: 11px; font-weight: 650; letter-spacing: .2em;
    text-transform: uppercase; color: var(--brand-2);
}
.kicker::before {
    content: ""; width: 22px; height: 1px; background: var(--brand);
}
.section-head { max-width: 760px; margin-bottom: 44px; }
.section-head h2 {
    margin-top: 14px; font-size: clamp(28px, 3.2vw, 42px);
    line-height: 1.24; letter-spacing: -.02em; font-weight: 650; color: var(--ink);
}
.section-head p { margin-top: 14px; color: var(--muted); font-size: 16px; max-width: 660px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center p { margin-left: auto; margin-right: auto; }

.eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 12px; border: 1px solid var(--brand-line); border-radius: 999px;
    background: rgba(255, 255, 255, .8); color: var(--brand-2);
    font-size: 12px; font-weight: 600; letter-spacing: .04em;
}

/* ---------------- 按钮 ---------------- */

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    min-height: 50px; padding: 0 26px; border-radius: 8px;
    border: 1px solid transparent; font-size: 15px; font-weight: 600;
    letter-spacing: .01em; white-space: nowrap;
    transition: transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 10px 24px rgba(14, 127, 184, .22); }
.btn-primary:hover { background: var(--brand-2); box-shadow: 0 16px 34px rgba(10, 98, 137, .26); }
.btn-ghost { background: transparent; border-color: var(--line-2); color: var(--ink-2); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand-2); background: #fff; }
.btn-white { background: #fff; color: var(--ink); }
.btn-white:hover { background: #eef6fb; }
.btn-arrow span {
    display: inline-block; transition: transform .22s ease; font-family: var(--font);
}
.btn-arrow:hover span { transform: translateX(4px); }

.link-arrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 14px; font-weight: 600; color: var(--brand-2);
}
.link-arrow i { font-style: normal; transition: transform .2s ease; }
.link-arrow:hover i { transform: translateX(4px); }

/* ---------------- 页头 ---------------- */

.site-header { position: fixed; inset: 0 0 auto 0; z-index: 900; }
.topbar {
    height: 34px; background: var(--ink); color: rgba(255, 255, 255, .78);
    font-size: 12px; letter-spacing: .03em;
}
.topbar .inner { height: 34px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.topbar a { color: rgba(255, 255, 255, .78); transition: color .2s; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; align-items: center; gap: 18px; }
.topbar .tb-right span { opacity: .5; }

.header-main {
    height: 76px; background: rgba(255, 255, 255, .94);
    border-bottom: 1px solid rgba(225, 233, 239, .9);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    transition: box-shadow .25s ease, background .25s ease;
}
.header-main.scrolled { box-shadow: 0 10px 30px rgba(10, 27, 38, .07); background: rgba(255, 255, 255, .98); }
.header-main .inner { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }

.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand img { height: 44px; width: auto; max-width: 190px; object-fit: contain; }
.brand-mark {
    width: 38px; height: 38px; flex: 0 0 38px;
    border: 1px solid var(--brand-line); border-radius: 8px;
    display: grid; place-items: center; color: var(--brand-2);
    font-size: 15px; font-weight: 750; letter-spacing: .04em;
    background: linear-gradient(145deg, #fff, #eef7fc);
}
.brand-text strong {
    display: block; font-size: 20px; font-weight: 700; letter-spacing: .04em;
    line-height: 1.15; color: var(--ink);
}
.brand-text small {
    display: block; margin-top: 3px; font-size: 10px; letter-spacing: .22em;
    color: var(--muted-2); text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
    position: relative; padding: 10px 13px; font-size: 14px; font-weight: 550;
    color: var(--ink-2); border-radius: 6px; transition: color .2s ease;
}
.nav a::after {
    content: ""; position: absolute; left: 13px; right: 13px; bottom: 4px; height: 2px;
    background: var(--brand); transform: scaleX(0); transform-origin: left;
    transition: transform .24s ease;
}
.nav a:hover, .nav a.active { color: var(--brand-2); }
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }
.nav .has-mega { position: relative; }
.nav .has-mega > a { display: inline-flex; align-items: center; gap: 6px; }
.nav .has-mega > a em { font-style: normal; font-size: 10px; color: var(--muted-2); }

.mega {
    position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%) translateY(8px);
    width: 560px; padding: 18px; border-radius: 14px; background: #fff;
    border: 1px solid var(--line); box-shadow: var(--shadow-md);
    display: grid; grid-template-columns: 1fr 1fr; gap: 6px 18px;
    opacity: 0; visibility: hidden; transition: opacity .22s ease, transform .22s ease, visibility .22s;
}
.nav .has-mega:hover .mega, .nav .has-mega:focus-within .mega { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.mega a {
    display: block; padding: 10px 12px; border-radius: 8px; font-size: 13px; color: var(--ink-2);
    border: 1px solid transparent;
}
.mega a::after { display: none; }
.mega a strong { display: block; font-size: 13px; font-weight: 600; }
.mega a small { display: block; margin-top: 2px; font-size: 11px; color: var(--muted-2); letter-spacing: .02em; }
.mega a:hover { background: var(--brand-soft); border-color: var(--brand-line); color: var(--brand-2); }

.header-actions { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.lang-switch {
    display: inline-flex; align-items: center; padding: 3px; border: 1px solid var(--line);
    border-radius: 999px; background: #fff; font-size: 12px;
}
.lang-switch a { padding: 3px 9px; border-radius: 999px; color: var(--muted); transition: .2s; }
.lang-switch a.on { background: var(--ink); color: #fff; }
.header-actions .btn { min-height: 40px; padding: 0 18px; font-size: 13px; border-radius: 6px; }

.burger {
    display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 8px;
    background: #fff; padding: 0; position: relative;
}
.burger span {
    position: absolute; left: 11px; right: 11px; height: 2px; background: var(--ink-2);
    transition: transform .25s ease, opacity .25s ease, top .25s ease;
}
.burger span:nth-child(1) { top: 13px; }
.burger span:nth-child(2) { top: 20px; }
.burger span:nth-child(3) { top: 27px; }
.burger.open span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

.drawer {
    position: fixed; inset: var(--header-h) 0 0 0; z-index: 890; background: #fff;
    transform: translateX(100%); transition: transform .32s cubic-bezier(.4, 0, .2, 1);
    overflow-y: auto; padding: 26px 24px 60px;
}
.drawer.open { transform: translateX(0); }
.drawer nav { display: flex; flex-direction: column; }
.drawer nav a { padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 16px; font-weight: 600; }
.drawer nav a:hover { color: var(--brand-2); }
.drawer .drawer-sub { margin: 6px 0 0 12px; }
.drawer .drawer-sub a { font-size: 13px; font-weight: 500; color: var(--muted); padding: 10px 0; }
.drawer .drawer-cta { margin-top: 24px; display: grid; gap: 10px; }
.drawer .drawer-contact { margin-top: 26px; font-size: 13px; color: var(--muted); line-height: 2; }

/* ---------------- Hero ---------------- */

.hero {
    position: relative; min-height: calc(100vh - var(--header-h));
    display: flex; align-items: center; overflow: hidden;
    background: #eef2f5;
}
.hero-bg {
    position: absolute; inset: 0 0 0 auto; width: 74%; height: 100%;
    object-fit: cover; object-position: center;
    animation: heroZoom 18s ease-in-out infinite alternate;
    transform-origin: 62% 50%;
}
.hero-shade {
    position: absolute; inset: 0;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, .98) 0%, rgba(255, 255, 255, .94) 30%, rgba(255, 255, 255, .72) 48%, rgba(255, 255, 255, .18) 68%, rgba(255, 255, 255, 0) 82%);
}
.hero-grid {
    position: absolute; inset: 0 55% 0 0; pointer-events: none;
    background-image:
        linear-gradient(to right, rgba(14, 127, 184, .07) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(14, 127, 184, .07) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(90deg, rgba(0, 0, 0, .5), transparent 92%);
    -webkit-mask-image: linear-gradient(90deg, rgba(0, 0, 0, .5), transparent 92%);
    opacity: .6;
}
.hero-inner { position: relative; z-index: 2; width: min(var(--max), calc(100% - 64px)); margin: 0 auto; padding: 74px 0 64px; }
.hero-copy { max-width: 640px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 7px 14px 7px 10px; border-radius: 999px;
    background: rgba(255, 255, 255, .8); border: 1px solid var(--brand-line);
    font-size: 12px; font-weight: 600; color: var(--brand-2);
    backdrop-filter: blur(6px);
}
.hero-badge .pulse {
    width: 7px; height: 7px; border-radius: 50%; background: var(--brand);
    box-shadow: 0 0 0 4px rgba(14, 127, 184, .14);
    animation: softPulse 2.4s ease-in-out infinite;
}
.hero h1 {
    margin-top: 24px; font-size: clamp(38px, 5vw, 68px); line-height: 1.12;
    letter-spacing: -.03em; font-weight: 700;
}
.hero h1 .accent { display: block; color: var(--brand-2); }
.hero-desc {
    margin-top: 22px; max-width: 552px; color: var(--muted);
    font-size: 16px; line-height: 1.85;
}
.hero-actions { display: flex; align-items: center; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.hero-note {
    display: flex; align-items: center; gap: 8px; margin-top: 18px;
    font-size: 12px; color: var(--muted-2); letter-spacing: .02em;
}
.hero-note .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--steel); }
.hero-stats {
    display: flex; gap: 0; margin-top: 58px; border-top: 1px solid rgba(211, 224, 233, .85);
    max-width: 600px;
}
.hero-stat { padding: 20px 34px 0 0; margin-right: 34px; border-right: 1px solid rgba(211, 224, 233, .85); }
.hero-stat:last-child { border-right: 0; margin-right: 0; }
.hero-stat b { display: block; font-size: 32px; line-height: 1; letter-spacing: -.02em; font-weight: 700; color: var(--ink); }
.hero-stat b small { font-size: 13px; font-weight: 600; margin-left: 2px; color: var(--brand-2); }
.hero-stat span { display: block; margin-top: 8px; font-size: 12px; color: var(--muted); letter-spacing: .04em; }

.hero-scroll {
    position: absolute; left: 50%; bottom: 24px; z-index: 2;
    display: flex; align-items: center; gap: 10px;
    transform: translateX(-50%); font-size: 10px; letter-spacing: .24em;
    color: var(--muted-2); text-transform: uppercase;
}
.hero-scroll i { width: 1px; height: 34px; background: linear-gradient(to bottom, var(--steel), transparent); animation: scrollHint 2.2s ease-in-out infinite; }

/* ---------------- 首页产品 ---------------- */

.products-section { padding: 100px 0 96px; background: #fff; }
.filter-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 30px; }
.filter-pill {
    display: inline-flex; align-items: center; min-height: 38px; padding: 0 16px;
    border: 1px solid var(--line); border-radius: 999px; background: #fff;
    font-size: 13px; color: var(--muted); transition: .2s;
}
.filter-pill:hover { border-color: var(--brand-line); color: var(--brand-2); }
.filter-pill.on { background: var(--ink); border-color: var(--ink); color: #fff; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.product-card {
    position: relative; display: flex; flex-direction: column;
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    overflow: hidden; transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--line-2); }
.product-media { position: relative; aspect-ratio: 4 / 3; background: #f2f5f7; overflow: hidden; }
.product-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2, .6, .2, 1); }
.product-card:hover .product-media img { transform: scale(1.045); }
.product-media .tag {
    position: absolute; left: 14px; top: 14px; padding: 4px 10px;
    background: rgba(255, 255, 255, .92); border: 1px solid rgba(225, 233, 239, .9);
    border-radius: 4px; font-size: 10px; letter-spacing: .1em; color: var(--brand-2);
    text-transform: uppercase; backdrop-filter: blur(4px);
}
.product-body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.product-body h3 { font-size: 20px; line-height: 1.35; letter-spacing: -.01em; font-weight: 650; }
.product-body p { margin-top: 10px; color: var(--muted); font-size: 13px; line-height: 1.75; flex: 1; }
.product-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.product-meta span { padding: 4px 8px; background: #f4f8fb; border-radius: 4px; font-size: 11px; color: #58707f; }
.product-foot {
    display: flex; align-items: center; justify-content: space-between;
    margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line);
    font-size: 12px; color: var(--muted-2);
}
.product-foot .go { display: inline-flex; align-items: center; gap: 6px; color: var(--brand-2); font-weight: 600; }
.product-foot .go i { font-style: normal; transition: transform .2s; }
.product-card:hover .product-foot .go i { transform: translateX(4px); }

/* ---------------- 优势 ---------------- */

.why-section { padding: 100px 0; background: var(--bg); }
.why-grid { display: grid; grid-template-columns: 1.02fr 1fr; gap: 70px; align-items: center; }
.why-visual { position: relative; }
.why-visual::before {
    content: ""; position: absolute; inset: 22px -22px -22px 22px;
    border: 1px solid var(--brand-line); border-radius: 18px;
}
.why-visual img { position: relative; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 18px; box-shadow: var(--shadow-md); }
.why-float {
    position: absolute; right: -26px; bottom: 26px; z-index: 2;
    background: #fff; border: 1px solid var(--line); border-radius: 12px;
    padding: 18px 20px; box-shadow: var(--shadow-md); min-width: 180px;
}
.why-float b { display: block; font-size: 27px; letter-spacing: -.02em; line-height: 1; }
.why-float b small { font-size: 12px; color: var(--brand-2); margin-left: 2px; }
.why-float span { display: block; margin-top: 7px; font-size: 11px; color: var(--muted); letter-spacing: .04em; }
.feature-list { margin-top: 34px; display: grid; gap: 0; }
.feature-item { display: grid; grid-template-columns: 46px 1fr; gap: 16px; padding: 20px 0; border-top: 1px solid var(--line); }
.feature-item:last-child { border-bottom: 1px solid var(--line); }
.feature-no { font-size: 12px; font-weight: 700; color: var(--brand); letter-spacing: .08em; padding-top: 4px; }
.feature-item h4 { font-size: 16px; font-weight: 650; }
.feature-item p { margin-top: 5px; font-size: 13px; color: var(--muted); line-height: 1.75; }

/* ---------------- 质量 ---------------- */

.quality-section { padding: 100px 0; background: #fff; }
.quality-grid { display: grid; grid-template-columns: 1fr 1.02fr; gap: 70px; align-items: center; }
.quality-copy .section-head { margin-bottom: 22px; }
.check-list { display: grid; gap: 14px; margin-top: 24px; }
.check-item { display: flex; gap: 13px; align-items: flex-start; font-size: 14px; line-height: 1.7; color: var(--ink-2); }
.check-mark {
    flex: 0 0 22px; width: 22px; height: 22px; margin-top: 3px;
    border-radius: 50%; background: var(--brand-soft); position: relative;
}
.check-mark::after {
    content: ""; position: absolute; left: 7px; top: 5px; width: 8px; height: 5px;
    border-left: 2px solid var(--brand-2); border-bottom: 2px solid var(--brand-2);
    transform: rotate(-45deg);
}
.quality-visual { position: relative; }
.quality-visual img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 18px; }
.quality-badge {
    position: absolute; left: -22px; top: 26px; background: var(--ink); color: #fff;
    padding: 14px 18px; border-radius: 10px; box-shadow: var(--shadow-md);
}
.quality-badge b { display: block; font-size: 11px; letter-spacing: .18em; color: #9fc4d7; }
.quality-badge span { display: block; margin-top: 4px; font-size: 14px; font-weight: 600; }

/* ---------------- 流程 ---------------- */

.process-section { padding: 96px 0; background: var(--brand-soft); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 54px; position: relative; }
.process-grid::before {
    content: ""; position: absolute; left: 3%; right: 3%; top: 34px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--brand-line) 12%, var(--brand-line) 88%, transparent);
}
.step-card { position: relative; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 28px 24px 26px; }
.step-card .no { display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: 50%; background: var(--brand-soft); color: var(--brand-2); font-size: 13px; font-weight: 750; letter-spacing: .06em; }
.step-card h4 { margin-top: 18px; font-size: 17px; font-weight: 650; }
.step-card p { margin-top: 8px; font-size: 12.5px; color: var(--muted); line-height: 1.8; }

/* ---------------- CTA ---------------- */

.cta-section { position: relative; overflow: hidden; background: var(--brand-3); color: #fff; }
.cta-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .22; }
.cta-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10, 79, 111, .96), rgba(10, 79, 111, .72) 55%, rgba(10, 79, 111, .42)); }
.cta-inner { position: relative; z-index: 2; padding: 88px 0; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-copy { max-width: 660px; }
.cta-copy .kicker { color: #b7dcec; }
.cta-copy .kicker::before { background: #b7dcec; }
.cta-copy h2 { margin-top: 14px; font-size: clamp(28px, 3.4vw, 44px); line-height: 1.25; letter-spacing: -.02em; font-weight: 650; }
.cta-copy p { margin-top: 14px; color: rgba(255, 255, 255, .78); font-size: 15px; max-width: 560px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------------- FAQ ---------------- */

.faq-section { padding: 96px 0; background: #fff; }
.faq-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
.faq-side { position: sticky; top: 140px; }
.faq-side .section-head { margin-bottom: 22px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
    width: 100%; display: flex; align-items: flex-start; justify-content: space-between; gap: 24px;
    padding: 22px 0; background: none; border: 0; text-align: left;
    font-size: 15px; font-weight: 600; color: var(--ink); line-height: 1.6;
}
.faq-q .plus { position: relative; flex: 0 0 22px; width: 22px; height: 22px; margin-top: 2px; }
.faq-q .plus::before, .faq-q .plus::after {
    content: ""; position: absolute; background: var(--brand); transition: transform .25s ease, opacity .25s;
}
.faq-q .plus::before { left: 5px; right: 5px; top: 10px; height: 2px; }
.faq-q .plus::after { top: 5px; bottom: 5px; left: 10px; width: 2px; }
.faq-item.open .plus::after { transform: rotate(90deg); opacity: 0; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .32s ease, padding .32s ease; color: var(--muted); font-size: 14px; line-height: 1.85; }
.faq-item.open .faq-a { max-height: 400px; padding-bottom: 22px; }
.faq-a p { padding-right: 46px; }

/* ---------------- 页脚 ---------------- */

.site-footer { background: #0a1b26; color: rgba(255, 255, 255, .72); }
.footer-top { padding: 68px 0 48px; display: grid; grid-template-columns: 1.45fr .8fr .8fr 1fr; gap: 48px; }
.footer-brand .brand-text strong { color: #fff; }
.footer-brand .brand-text small { color: rgba(255, 255, 255, .46); }
.footer-brand p { margin-top: 18px; font-size: 13px; line-height: 1.9; color: rgba(255, 255, 255, .58); max-width: 340px; }
.footer-col h5 {
    font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
    color: rgba(255, 255, 255, .42); font-weight: 650; margin-bottom: 16px;
}
.footer-col a, .footer-col span { display: block; padding: 5px 0; font-size: 13px; color: rgba(255, 255, 255, .68); }
.footer-col a:hover { color: #fff; }
.footer-contact b { display: block; font-size: 12px; color: rgba(255, 255, 255, .4); font-weight: 500; letter-spacing: .04em; }
.footer-contact p { margin: 4px 0 14px; color: rgba(255, 255, 255, .78); font-size: 13px; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0 26px;
    display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
    font-size: 12px; color: rgba(255, 255, 255, .42);
}
.footer-bottom .fb-links { display: flex; gap: 18px; padding-right: 110px; }
.footer-bottom a:hover { color: rgba(255, 255, 255, .8); }
.footer-note { font-size: 11px; color: rgba(255, 255, 255, .32); }

/* ---------------- 内页 ---------------- */

.page-hero { position: relative; padding: 64px 0 56px; background: linear-gradient(180deg, #f3f8fb, #fff); border-bottom: 1px solid var(--line); overflow: hidden; }
.page-hero::after {
    content: ""; position: absolute; right: -120px; top: -140px; width: 420px; height: 420px;
    border-radius: 50%; border: 1px solid var(--brand-line); opacity: .6;
}
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted-2); margin-bottom: 18px; }
.breadcrumb a:hover { color: var(--brand-2); }
.breadcrumb i { font-style: normal; opacity: .5; }
.page-hero h1 { font-size: clamp(30px, 4vw, 50px); letter-spacing: -.025em; line-height: 1.2; font-weight: 650; max-width: 880px; }
.page-hero p { margin-top: 14px; color: var(--muted); font-size: 15px; max-width: 680px; }

.page-section { padding: 84px 0; }
.page-section.soft { background: var(--bg); }

/* ---------------- 产品列表 ---------------- */

.catalog-bar { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-bottom: 28px; }
.catalog-count { font-size: 13px; color: var(--muted-2); }
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 48px; }
.pagination a, .pagination span {
    min-width: 38px; height: 38px; padding: 0 10px; display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--line); border-radius: 8px; font-size: 13px; color: var(--muted); background: #fff;
}
.pagination a:hover { border-color: var(--brand); color: var(--brand-2); }
.pagination .on { background: var(--ink); border-color: var(--ink); color: #fff; }
.pagination .dots { border-color: transparent; }

/* ---------------- 产品详情 ---------------- */

.product-detail { padding: 54px 0 84px; }
.product-main { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: start; }
.product-gallery { position: sticky; top: 140px; }
.gallery-main { position: relative; aspect-ratio: 4 / 3; background: #f4f7f9; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 10px; margin-top: 12px; }
.gallery-thumbs button { padding: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: none; width: 84px; aspect-ratio: 4/3; }
.gallery-thumbs button.on { border-color: var(--brand); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: cover; }

.product-info .kicker { color: var(--muted-2); }
.product-info .kicker::before { background: var(--line-2); }
.product-info h1 { margin-top: 12px; font-size: clamp(28px, 3.4vw, 40px); line-height: 1.22; letter-spacing: -.02em; font-weight: 650; }
.product-model { margin-top: 10px; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--brand-2); }
.product-lead { margin-top: 18px; font-size: 15px; line-height: 1.85; color: var(--muted); }
.product-quick { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.product-quick span { padding: 6px 10px; background: var(--brand-soft); border-radius: 5px; font-size: 12px; color: var(--brand-2); }
.product-cta { display: flex; gap: 10px; margin-top: 26px; flex-wrap: wrap; }
.product-cta .btn { min-height: 46px; }
.product-assurance { display: grid; gap: 0; margin-top: 28px; border-top: 1px solid var(--line); }
.assurance-row { display: flex; justify-content: space-between; gap: 20px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 12.5px; }
.assurance-row span { color: var(--muted-2); }
.assurance-row b { font-weight: 600; color: var(--ink-2); }

.spec-block { margin-top: 56px; }
.spec-block h2, .desc-block h2 { font-size: 22px; font-weight: 650; letter-spacing: -.01em; }
.spec-table { width: 100%; border-collapse: collapse; margin-top: 18px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.spec-table tr:nth-child(odd) { background: #f8fbfc; }
.spec-table th, .spec-table td { padding: 13px 18px; text-align: left; font-size: 13.5px; border-bottom: 1px solid var(--line); }
.spec-table th { width: 34%; color: var(--muted); font-weight: 500; }
.spec-table td { color: var(--ink-2); font-weight: 600; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.desc-block { margin-top: 48px; padding-top: 38px; border-top: 1px solid var(--line); }
.prose { margin-top: 18px; color: var(--ink-2); font-size: 14.5px; line-height: 1.95; }
.prose h3 { margin: 26px 0 8px; font-size: 18px; font-weight: 650; color: var(--ink); }
.prose h3:first-child { margin-top: 0; }
.prose p { margin: 0 0 12px; }
.prose ul, .prose ol { margin: 10px 0 16px 20px; }
.prose li { margin: 5px 0; list-style: disc; }
.prose ol li { list-style: decimal; }
.prose a { color: var(--brand-2); text-decoration: underline; }
.prose img { border-radius: 10px; margin: 16px 0; }
.prose blockquote { margin: 18px 0; padding: 14px 20px; border-left: 3px solid var(--brand-line); background: var(--bg); color: var(--muted); }
.prose table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.prose table td, .prose table th { border: 1px solid var(--line); padding: 10px 12px; font-size: 13px; }

.related-block { margin-top: 72px; padding-top: 52px; border-top: 1px solid var(--line); }
.related-block h2 { font-size: 24px; font-weight: 650; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }

/* ---------------- 关于 ---------------- */

.about-intro { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.about-copy .prose { margin-top: 22px; }
.about-visual img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 16px; }
.about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 34px; border-top: 1px solid var(--line); }
.about-stat { padding: 22px 20px 0 0; }
.about-stat b { display: block; font-size: 30px; line-height: 1; letter-spacing: -.02em; }
.about-stat b small { font-size: 12px; color: var(--brand-2); margin-left: 2px; }
.about-stat span { display: block; margin-top: 7px; font-size: 12px; color: var(--muted); }
.about-values { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 30px; margin-top: 28px; }

/* ---------------- 联系 ---------------- */

.contact-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: start; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 34px; box-shadow: var(--shadow-sm); }
.contact-card h2 { font-size: 22px; font-weight: 650; }
.contact-card p { margin-top: 8px; font-size: 13px; color: var(--muted); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
.form-row { display: grid; gap: 7px; }
.form-row.full { grid-column: 1 / -1; }
.form-row label { font-size: 12px; font-weight: 600; color: var(--ink-2); letter-spacing: .02em; }
.form-row label em { font-style: normal; color: var(--brand); margin-left: 3px; }
.form-row input, .form-row textarea, .form-row select {
    width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px;
    background: #fbfdfe; font-size: 14px; transition: border-color .2s, box-shadow .2s, background .2s;
}
.form-row textarea { min-height: 130px; resize: vertical; }
.form-row input:focus, .form-row textarea:focus, .form-row select:focus {
    outline: none; border-color: var(--brand); background: #fff;
    box-shadow: 0 0 0 3px rgba(14, 127, 184, .1);
}
.form-note { margin-top: 12px; font-size: 11.5px; color: var(--muted-2); line-height: 1.7; }
.form-actions { margin-top: 20px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.contact-side { display: grid; gap: 14px; }
.contact-info-card { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 26px; }
.contact-info-card h3 { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-2); font-weight: 650; }
.contact-info-card .ci-main { margin-top: 12px; font-size: 18px; font-weight: 650; line-height: 1.5; }
.contact-info-card .ci-sub { margin-top: 6px; font-size: 13px; color: var(--muted); line-height: 1.8; }
.contact-info-card dl { margin: 0; display: grid; grid-template-columns: 70px 1fr; gap: 8px 14px; font-size: 13px; }
.contact-info-card dt { color: var(--muted-2); }
.contact-info-card dd { margin: 0; color: var(--ink-2); }
.contact-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

/* ---------------- 隐私 / 内容页 ---------------- */

.doc-layout { display: grid; grid-template-columns: 210px 1fr; gap: 54px; align-items: start; }
.doc-nav { position: sticky; top: 140px; display: grid; gap: 2px; }
.doc-nav a { padding: 9px 0; font-size: 13px; color: var(--muted); border-bottom: 1px solid var(--line); }
.doc-nav a:hover { color: var(--brand-2); }
.doc-body { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 38px 42px; }
.doc-body .meta { font-size: 12px; color: var(--muted-2); letter-spacing: .05em; margin-bottom: 18px; }
.doc-body .prose { font-size: 14.5px; }

/* ---------------- 提示 ---------------- */

.flash { display: flex; gap: 10px; align-items: flex-start; padding: 13px 16px; border-radius: 10px; font-size: 13.5px; margin-bottom: 20px; border: 1px solid; }
.flash.success { background: #eff9f4; border-color: #cce9dd; color: #116b4d; }
.flash.error { background: #fff4f2; border-color: #f2d3cd; color: #98352a; }
.flash.info { background: var(--brand-soft); border-color: var(--brand-line); color: var(--brand-2); }

/* ---------------- 在线客服 / WhatsApp ---------------- */

.yk-widgets { position: fixed; right: 22px; bottom: calc(24px + var(--lift, 0px)); z-index: 950; display: flex; flex-direction: column; align-items: flex-end; gap: 14px; }
.yk-widgets.yk-lang-zh, .chat-panel.yk-lang-zh { --lift: 16px; }
.yk-widgets.yk-lang-en, .chat-panel.yk-lang-en { --lift: 42px; }
.wa-stack { display: flex; flex-direction: column; gap: 12px; align-items: flex-end; }
.wa-btn { position: relative; display: flex; align-items: center; gap: 10px; }
.wa-label {
    max-width: 0; overflow: hidden; white-space: nowrap; opacity: 0;
    padding: 9px 0; background: #fff; border: 1px solid var(--line); border-radius: 999px;
    box-shadow: var(--shadow-sm); font-size: 12px; color: var(--ink-2); font-weight: 600;
    transition: max-width .3s ease, opacity .3s ease, padding .3s ease;
}
.wa-btn:hover .wa-label { max-width: 240px; opacity: 1; padding: 9px 16px; }
.wa-circle {
    position: relative; width: 54px; height: 54px; border-radius: 50%;
    background: #1faf5b; color: #fff; display: grid; place-items: center;
    font-size: 13px; font-weight: 750; letter-spacing: .02em;
    box-shadow: 0 12px 26px rgba(31, 175, 91, .28);
    animation: breatheGreen 3s ease-in-out infinite;
}
.wa-circle::before, .wa-circle::after {
    content: ""; position: absolute; inset: -5px; border-radius: 50%;
    border: 2px solid rgba(31, 175, 91, .42); animation: ringPulse 3s ease-out infinite;
}
.wa-circle::after { animation-delay: 1s; }

.chat-btn-wrap { display: flex; align-items: center; gap: 10px; }
.chat-btn {
    position: relative; width: 62px; height: 62px; border-radius: 50%;
    background: linear-gradient(145deg, #128ec9, #0a6289); color: #fff; border: 0;
    display: grid; place-items: center; box-shadow: 0 14px 30px rgba(10, 98, 137, .32);
    animation: breatheBlue 3.2s ease-in-out infinite;
}
.chat-btn::before, .chat-btn::after {
    content: ""; position: absolute; inset: -5px; border-radius: 50%;
    border: 2px solid rgba(14, 127, 184, .42); animation: ringPulse 3.2s ease-out infinite;
}
.chat-btn::after { animation-delay: 1.1s; }
.chat-bubble-icon { position: relative; width: 26px; height: 19px; border: 2px solid #fff; border-radius: 5px; }
.chat-bubble-icon::after {
    content: ""; position: absolute; left: 4px; bottom: -6px; width: 7px; height: 7px;
    border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(-45deg);
    background: transparent;
}
.chat-btn .online-dot {
    position: absolute; right: 2px; top: 3px; width: 9px; height: 9px; border-radius: 50%;
    background: #39d98a; border: 2px solid #fff; box-shadow: 0 0 0 3px rgba(57, 217, 138, .2);
}
.chat-label {
    max-width: 0; overflow: hidden; opacity: 0; white-space: nowrap;
    padding: 9px 0; background: #fff; border: 1px solid var(--line); border-radius: 999px;
    box-shadow: var(--shadow-sm); font-size: 12px; font-weight: 600; color: var(--ink-2);
    transition: max-width .3s ease, opacity .3s ease, padding .3s ease;
}
.chat-btn-wrap:hover .chat-label { max-width: 260px; padding: 9px 16px; opacity: 1; }

.chat-teaser {
    position: relative; width: 268px; padding: 16px 18px 15px;
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    box-shadow: var(--shadow-md); font-size: 12.5px; line-height: 1.7; color: var(--ink-2);
    opacity: 0; transform: translateY(8px); visibility: hidden;
    transition: opacity .3s ease, transform .3s ease, visibility .3s;
}
.chat-teaser.show { opacity: 1; transform: translateY(0); visibility: visible; }
.chat-teaser b { display: block; font-size: 13px; color: var(--brand-2); margin-bottom: 4px; }
.chat-teaser .close {
    position: absolute; right: 6px; top: 4px; width: 22px; height: 22px; background: none; border: 0;
    color: #9aabb7; font-size: 16px; line-height: 1; padding: 0;
}
.chat-teaser::after {
    content: ""; position: absolute; right: 34px; bottom: -7px; width: 12px; height: 12px;
    background: #fff; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
    transform: rotate(45deg);
}

.chat-panel {
    position: fixed; right: 22px; bottom: calc(100px + var(--lift, 0px)); z-index: 960;
    width: 410px; max-height: min(660px, calc(100vh - 150px));
    background: #fff; border: 1px solid var(--line); border-radius: 18px;
    box-shadow: var(--shadow-lg); overflow: hidden; display: flex; flex-direction: column;
    opacity: 0; visibility: hidden; transform: translateY(14px) scale(.98);
    transition: opacity .28s ease, transform .28s ease, visibility .28s;
}
.chat-panel.open { opacity: 1; visibility: visible; transform: none; }
.chat-head { background: linear-gradient(135deg, #0e7fb8, #0a4f6f); color: #fff; padding: 18px 18px 16px; }
.chat-head .ch-top { display: flex; align-items: center; justify-content: space-between; }
.chat-head .ch-id { display: flex; align-items: center; gap: 10px; }
.chat-avatar { width: 38px; height: 38px; border-radius: 50%; background: rgba(255, 255, 255, .16); border: 1px solid rgba(255, 255, 255, .28); display: grid; place-items: center; font-size: 12px; font-weight: 700; letter-spacing: .05em; overflow: hidden; }
.chat-avatar img { width: 100%; height: 100%; object-fit: cover; }
.chat-head strong { display: block; font-size: 14px; font-weight: 650; }
.chat-head small { display: flex; align-items: center; gap: 6px; font-size: 11px; color: rgba(255, 255, 255, .78); margin-top: 2px; }
.chat-head small .dot { width: 6px; height: 6px; border-radius: 50%; background: #4bdfa0; }
.chat-head small .dot.off { background: #ffd27a; }
.chat-close { width: 30px; height: 30px; display: grid; place-items: center; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .2); border-radius: 50%; color: #fff; font-size: 15px; line-height: 1; }
.chat-hours { margin-top: 12px; font-size: 10.5px; color: rgba(255, 255, 255, .62); letter-spacing: .03em; }
.chat-body { flex: 1; overflow-y: auto; padding: 18px; background: #f7fafc; }
.chat-msg { display: flex; margin-bottom: 12px; }
.chat-msg.admin { justify-content: flex-start; }
.chat-msg.visitor { justify-content: flex-end; }
.bubble {
    max-width: 82%; padding: 11px 14px; border-radius: 12px; font-size: 13.5px; line-height: 1.68;
    background: #fff; border: 1px solid var(--line); color: var(--ink-2); white-space: pre-wrap; word-break: break-word;
}
.chat-msg.visitor .bubble { background: var(--brand); border-color: var(--brand); color: #fff; border-bottom-right-radius: 4px; }
.chat-msg.admin .bubble { border-bottom-left-radius: 4px; }
.bubble time { display: block; margin-top: 4px; font-size: 10px; opacity: .55; }
.chat-quick { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 14px 0; background: #fff; border-top: 1px solid var(--line); }
.chat-quick button { padding: 5px 9px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-size: 11px; color: var(--muted); }
.chat-quick button:hover { border-color: var(--brand-line); color: var(--brand-2); }
.chat-form { display: flex; gap: 8px; padding: 12px 14px 14px; background: #fff; }
.chat-form textarea {
    flex: 1; min-height: 56px; max-height: 140px; resize: none; padding: 11px 13px;
    border: 1px solid var(--line); border-radius: 8px; font-size: 14px; line-height: 1.55;
}
.chat-form textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 2px rgba(14, 127, 184, .1); }
.chat-form button { width: 44px; border: 0; border-radius: 8px; background: var(--brand); color: #fff; font-size: 12px; font-weight: 600; }
.chat-form button:disabled { opacity: .5; }
.chat-intro { padding: 0 0 14px; }
.chat-intro .ci-text { font-size: 12.5px; color: var(--muted); line-height: 1.7; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.chat-intro input {
    width: 100%; margin-top: 10px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; font-size: 12px;
}
.chat-intro input:focus { outline: none; border-color: var(--brand); }
.chat-status { font-size: 11px; color: var(--muted-2); text-align: center; padding: 6px 0 0; }

/* ---------------- Cookie ---------------- */

.cookie-bar {
    position: fixed; left: 22px; bottom: 22px; z-index: 940; width: 372px; max-width: calc(100% - 44px);
    background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-lg);
    padding: 18px 18px 16px; transform: translateY(14px); opacity: 0; visibility: hidden;
    transition: opacity .3s ease, transform .3s ease, visibility .3s;
}
.cookie-bar.show { opacity: 1; visibility: visible; transform: none; }
.cookie-bar b { display: block; font-size: 13px; margin-bottom: 6px; }
.cookie-bar p { font-size: 11.5px; color: var(--muted); line-height: 1.65; }
.cookie-bar p a { color: var(--brand-2); text-decoration: underline; }
.cookie-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.cookie-actions button { padding: 7px 12px; border-radius: 6px; border: 1px solid var(--line); background: #fff; font-size: 11.5px; font-weight: 600; }
.cookie-actions .accept { background: var(--ink); border-color: var(--ink); color: #fff; }
.cookie-actions .reject { color: var(--muted); }

/* ---------------- 动画 ---------------- */

@keyframes heroZoom {
    from { transform: scale(1.14); }
    to { transform: scale(1.03); }
}
@keyframes softPulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(14, 127, 184, .12); }
    50% { box-shadow: 0 0 0 7px rgba(14, 127, 184, .06); }
}
@keyframes breatheBlue {
    0%, 100% { box-shadow: 0 14px 30px rgba(10, 98, 137, .3), 0 0 0 0 rgba(14, 127, 184, .22); }
    50% { box-shadow: 0 18px 38px rgba(10, 98, 137, .36), 0 0 0 12px rgba(14, 127, 184, 0); }
}
@keyframes breatheGreen {
    0%, 100% { box-shadow: 0 12px 26px rgba(31, 175, 91, .26), 0 0 0 0 rgba(31, 175, 91, .2); }
    50% { box-shadow: 0 16px 32px rgba(31, 175, 91, .32), 0 0 0 10px rgba(31, 175, 91, 0); }
}
@keyframes ringPulse {
    0% { transform: scale(.86); opacity: .55; }
    55% { opacity: .22; }
    100% { transform: scale(1.72); opacity: 0; }
}
@keyframes scrollHint {
    0%, 100% { transform: translateY(0); opacity: .8; }
    50% { transform: translateY(7px); opacity: .35; }
}
@keyframes riseIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .6, .2, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.delay-1 { transition-delay: .08s; }
.reveal.delay-2 { transition-delay: .16s; }
.reveal.delay-3 { transition-delay: .24s; }

.hero-copy > * { animation: riseIn .8s cubic-bezier(.2, .6, .2, 1) both; }
.hero-copy > *:nth-child(1) { animation-delay: .05s; }
.hero-copy > *:nth-child(2) { animation-delay: .12s; }
.hero-copy > *:nth-child(3) { animation-delay: .2s; }
.hero-copy > *:nth-child(4) { animation-delay: .28s; }
.hero-copy > *:nth-child(5) { animation-delay: .36s; }
.hero-copy > *:nth-child(6) { animation-delay: .44s; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
}

/* ---------------- 响应式 ---------------- */

@media (max-width: 1120px) {
    .container, .hero-inner { width: calc(100% - 48px); }
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: 1.3fr 1fr 1fr; gap: 36px; }
    .footer-contact { grid-column: 1 / -1; }
    .mega { width: 480px; }
}

@media (max-width: 960px) {
    :root { --header-h: 76px; }
    body { padding-top: 76px; }
    .topbar { display: none; }
    .header-main .inner { height: 76px; }
    .nav, .header-actions .btn, .lang-switch { display: none; }
    .burger { display: block; }
    .header-actions { gap: 8px; }
    .hero-bg { width: 100%; }
    .hero-shade {
        background: linear-gradient(180deg, rgba(255, 255, 255, .97) 0%, rgba(255, 255, 255, .92) 46%, rgba(255, 255, 255, .62) 72%, rgba(255, 255, 255, .32) 100%);
    }
    .hero-grid { inset: 0; opacity: .4; }
    .hero { min-height: 0; padding: 0; }
    .hero-inner { padding: 54px 0 66px; }
    .hero h1 { font-size: clamp(34px, 8vw, 52px); }
    .hero-stats { margin-top: 40px; flex-wrap: wrap; gap: 24px 0; }
    .hero-stat { padding-right: 22px; margin-right: 22px; }
    .hero-scroll { display: none; }
    .why-grid, .quality-grid, .about-intro, .contact-grid, .product-main { grid-template-columns: 1fr; gap: 40px; }
    .why-visual { order: 2; }
    .why-float { right: 12px; bottom: 12px; }
    .quality-visual { order: 2; }
    .quality-badge { left: 12px; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid::before { display: none; }
    .faq-layout { grid-template-columns: 1fr; gap: 26px; }
    .faq-side { position: static; }
    .product-gallery { position: static; }
    .product-info { order: -1; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .doc-layout { grid-template-columns: 1fr; gap: 20px; }
    .doc-nav { position: static; display: flex; flex-wrap: wrap; gap: 8px; }
    .doc-nav a { border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: 12px; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .cta-inner { padding: 64px 0; }
    .chat-panel { right: 12px; bottom: calc(94px + var(--lift, 0px)); width: calc(100% - 24px); max-height: calc(100vh - 150px); }
}

@media (max-width: 640px) {
    .container, .hero-inner, .container-narrow { width: calc(100% - 36px); }
    .hero-inner { padding: 40px 0 52px; }
    .hero-badge { font-size: 11px; }
    .hero h1 { font-size: 36px; }
    .hero-desc { font-size: 14.5px; }
    .hero-actions .btn { min-height: 46px; padding: 0 18px; font-size: 14px; }
    .hero-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
    .hero-stat { padding-right: 10px; margin-right: 0; }
    .hero-stat b { font-size: 26px; }
    .hero-stat span { font-size: 11px; }
    .section-head h2 { font-size: 27px; }
    .products-section, .why-section, .quality-section, .process-section, .faq-section, .page-section { padding: 64px 0; }
    .product-grid { grid-template-columns: 1fr; gap: 16px; }
    .product-body { padding: 18px; }
    .process-grid { grid-template-columns: 1fr; gap: 12px; }
    .step-card { padding: 22px 20px; }
    .footer-top { grid-template-columns: 1fr; gap: 30px; padding: 48px 0 36px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .footer-bottom .fb-links { padding-right: 0; }
    .faq-q { font-size: 14px; }
    .form-grid { grid-template-columns: 1fr; }
    .contact-card { padding: 22px 18px; }
    .related-grid { grid-template-columns: 1fr; }
    .doc-body { padding: 24px 20px; }
    .page-hero { padding: 40px 0 38px; }
    .page-hero h1 { font-size: 30px; }
    .brand-text strong { font-size: 17px; }
    .brand-text small { font-size: 9px; letter-spacing: .18em; }
    .brand-mark { width: 34px; height: 34px; flex-basis: 34px; font-size: 13px; }
    .yk-widgets { right: 14px; bottom: calc(16px + var(--lift, 0px)); gap: 10px; }
    .chat-btn { width: 56px; height: 56px; }
    .wa-circle { width: 48px; height: 48px; font-size: 12px; }
    .chat-teaser { width: 240px; }
    .cookie-bar { left: 12px; bottom: 12px; width: calc(100% - 24px); }
    .about-values { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: 1fr 1fr; }
    .about-stat { padding: 18px 12px 0 0; }
    .gallery-thumbs button { width: 68px; }
}

/* ---------------- 补充布局 ---------------- */
.head-row {
    display: flex; align-items: flex-end; justify-content: space-between; gap: 32px;
    margin-bottom: 44px; flex-wrap: wrap;
}
.head-row .section-head { margin-bottom: 0; }
.head-row .link-arrow { padding-bottom: 6px; }
.page-hero .kicker { margin-bottom: 2px; }
.product-card { color: inherit; }
.product-card:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
#product-inquiry .contact-card { padding: 30px; }
#product-inquiry .spec-block h2 { margin-bottom: 4px; }
.chat-teaser { cursor: pointer; }
.contact-info-card .btn { min-height: 42px; padding: 0 16px; font-size: 13px; }
.about-values { margin-top: 26px; }
@media (max-width: 640px) {
    .head-row { margin-bottom: 26px; }
    .head-row .link-arrow { display: none; }
    #product-inquiry .contact-card { padding: 22px 18px; }
}
/* 装饰性微动效：即使用户系统开启“减少动态效果”，Hero 与浮动客服仍保留低频呼吸，不触发布局位移 */
@media (prefers-reduced-motion: reduce) {
    .hero-bg { animation: heroZoom 18s ease-in-out infinite alternate !important; }
    .hero-badge .pulse { animation: softPulse 3s ease-in-out infinite !important; }
    .hero-scroll i { animation: scrollHint 2.2s ease-in-out infinite !important; }
    .chat-btn { animation: breatheBlue 3.4s ease-in-out infinite !important; }
    .wa-circle { animation: breatheGreen 3.2s ease-in-out infinite !important; }
}
/* 联系页地图 */
.map-section { padding: 0 0 clamp(56px, 7vw, 96px); }
.map-card {
    background: #fff; border: 1px solid var(--line); border-radius: 18px;
    overflow: hidden; box-shadow: var(--shadow-md);
}
.map-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; padding: 28px 30px 22px; }
.map-head h2 { margin-top: 10px; font-size: clamp(22px, 2.2vw, 30px); line-height: 1.25; letter-spacing: -.02em; }
.map-head p { margin-top: 8px; max-width: 560px; color: var(--muted); font-size: 14px; line-height: 1.75; }
.map-link { flex: none; font-size: 13px; font-weight: 600; color: var(--brand-2); display: inline-flex; align-items: center; gap: 6px; }
.map-link:hover { color: var(--brand); }
.map-embed { position: relative; height: 440px; background: #eef4f8; border-top: 1px solid var(--line); }
.map-embed iframe { display: block; width: 100%; height: 100%; border: 0; }
@media (max-width: 760px) {
    .map-head { flex-direction: column; align-items: flex-start; padding: 24px 22px 18px; }
    .map-embed { height: 320px; }
}
/* 波浪式呼吸：减少动态效果时仍保留扩散波纹 */
@media (prefers-reduced-motion: reduce) {
    .chat-btn::before { animation: ringPulse 3.2s ease-out infinite !important; }
    .chat-btn::after { animation: ringPulse 3.2s ease-out 1.1s infinite !important; }
    .wa-circle::before { animation: ringPulse 3s ease-out infinite !important; }
    .wa-circle::after { animation: ringPulse 3s ease-out 1s infinite !important; }
}
/* 询盘图纸上传 */
.file-field {
    display: grid; gap: 7px; padding: 13px 14px; border: 1px dashed var(--brand-line);
    border-radius: 10px; background: #f8fbfd;
}
.file-upload { display: flex; align-items: center; gap: 12px; cursor: pointer; min-height: 36px; }
.file-btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 7px 12px; border: 1px solid var(--brand-line); border-radius: 7px;
    background: #fff; color: var(--brand-2); font: inherit; font-size: 12px; font-weight: 600;
}
.file-upload:hover .file-btn { border-color: var(--brand); color: var(--brand); }
.file-status { font-size: 12.5px; color: var(--muted-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-input { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; clip: rect(0 0 0 0); pointer-events: none; }
.file-note { font-size: 11.5px; color: var(--muted-2); line-height: 1.7; }