:root {
    --bg: #181020;
    --bg2: #221527;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --border: rgba(255, 255, 255, 0.07);
    --border-hover: rgba(255, 255, 255, 0.14);
    --txt: #faeef5;
    --txt2: #b3a0b0;
    --txt3: #6e5a6d;
    --blue: #FF5C9D;
    --blue-dim: rgba(255, 92, 157, 0.10);
    --cyan: #FFB27E;
    --amber: #F59E0B;
    --green: #34D399;
    --green-dim: rgba(52, 211, 153, 0.08);
    --red: #F87171;
    --purple: #A78BFA;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: 'DM Sans', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--txt);
    background: var(--bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: 'Outfit', 'PingFang SC', 'Microsoft YaHei', sans-serif; }
a { color: inherit; text-decoration: none; }

/* ─── Background ─── */
.bg-layer {
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background:
        radial-gradient(ellipse 80% 50% at 8% 0%, rgba(255, 92, 157, 0.10) 0%, transparent 55%),
        radial-gradient(ellipse 60% 40% at 92% 5%, rgba(255, 178, 126, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 50% 100%, rgba(245, 158, 11, 0.04) 0%, transparent 50%),
        linear-gradient(180deg, #181020 0%, #1d1226 40%, #191022 100%);
}

.bg-dots {
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background-image: radial-gradient(rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 28px 28px;
}

.page { position: relative; z-index: 1; }

/* ─── Nav ─── */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: background 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
}

.nav.scrolled {
    background: rgba(24, 16, 32, 0.82);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom-color: var(--border);
}

.nav-inner {
    max-width: 1280px; margin: 0 auto;
    padding: 0 40px; height: 68px;
    display: flex; align-items: center; justify-content: space-between;
}

.nav-brand { display: flex; align-items: center; gap: 12px; }
.nav-brand img { width: 30px; height: 30px; border-radius: 7px; }
.nav-brand span { font-family: 'Outfit', sans-serif; font-weight: 700; font-size: 1.12rem; }

.nav-badge {
    font-size: 0.62rem; padding: 3px 8px; border-radius: 5px;
    background: var(--blue-dim); color: var(--blue);
    border: 1px solid rgba(255, 92, 157, 0.18);
    font-weight: 600; letter-spacing: 0.5px;
}

.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 0.92rem; color: var(--txt2); transition: color 0.2s; font-weight: 500; }
.nav-links a:hover { color: var(--txt); }

.nav-right { display: flex; align-items: center; gap: 10px; }

.lang-btn {
    font-size: 0.82rem; padding: 6px 14px; border-radius: 7px;
    background: var(--bg-card); border: 1px solid var(--border);
    color: var(--txt2); cursor: pointer; transition: all 0.2s;
    font-weight: 500; font-family: inherit;
}
.lang-btn:hover { border-color: var(--border-hover); color: var(--txt); }

/* ─── Buttons ─── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    padding: 10px 20px; border-radius: 9px; font-weight: 600; font-size: 0.87rem;
    transition: all 0.2s; cursor: pointer; border: none; font-family: inherit;
    white-space: nowrap;
}

.btn-p {
    background: var(--blue); color: #fff;
    box-shadow: 0 0 0 1px rgba(255,92,157,0.25), 0 4px 16px rgba(255,92,157,0.18);
}
.btn-p:hover {
    background: #ff74ac;
    box-shadow: 0 0 0 1px rgba(255,92,157,0.4), 0 6px 24px rgba(255,92,157,0.25);
    transform: translateY(-1px);
}

.btn-s {
    background: var(--bg-card); color: var(--txt);
    border: 1px solid var(--border);
}
.btn-s:hover { background: var(--bg-card-hover); border-color: var(--border-hover); transform: translateY(-1px); }

/* ─── Layout ─── */
.container { max-width: 1280px; margin: 0 auto; }

.sec { padding: 64px 48px; }
.sec-head { margin-bottom: 32px; }

.sec-label {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.72rem; font-weight: 600; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--blue); margin-bottom: 10px;
}
.sec-label::before { content: ''; width: 16px; height: 1px; background: var(--blue); }

.sec-title {
    font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800;
    letter-spacing: -0.6px; line-height: 1.15; margin-bottom: 8px;
}

.sec-desc { color: var(--txt2); font-size: 0.95rem; line-height: 1.65; max-width: 500px; }

/* ─── Hero ─── */
.hero {
    max-width: 1280px; margin: 0 auto;
    padding: 104px 48px 56px;
    display: grid; grid-template-columns: 1fr 1.15fr;
    gap: 40px; align-items: center;
}

.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 5px 14px 5px 8px; border-radius: 100px;
    background: var(--blue-dim); border: 1px solid rgba(255,92,157,0.15);
    font-size: 0.78rem; color: var(--blue); font-weight: 500; margin-bottom: 20px;
}

.hero-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--blue); animation: blink 2s infinite;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.hero h1 {
    font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 900;
    line-height: 1.1; letter-spacing: -1.2px; margin-bottom: 16px;
}

.hero h1 .g {
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}

.hero-desc {
    color: var(--txt2); font-size: 0.98rem; line-height: 1.7;
    margin-bottom: 24px; max-width: 460px;
}

.hero-btns { display: flex; gap: 10px; margin-bottom: 36px; flex-wrap: wrap; }

.hero-stats { display: flex; gap: 32px; flex-wrap: wrap; }

.hero-stat b {
    font-family: 'Outfit', sans-serif; font-size: 1.35rem;
    font-weight: 800; display: block;
}
.hero-stat b .a { color: var(--blue); }
.hero-stat small { font-size: 0.75rem; color: var(--txt3); font-weight: 400; }

/* ─── Order Animation Demo ─── */
.order-demo {
    position: relative;
    border-radius: 14px; overflow: hidden;
    background: #120b18;
    border: 1px solid rgba(255,255,255,0.06);
    box-shadow: 0 20px 48px -12px rgba(0,0,0,0.5), 0 0 80px rgba(255,92,157,0.06);
}

.order-demo-glow {
    position: absolute; inset: -2px; border-radius: 16px;
    background: linear-gradient(135deg, rgba(255,92,157,0.2), transparent 50%, rgba(255,178,126,0.15));
    z-index: -1; filter: blur(14px);
}

.demo-titlebar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 14px; background: rgba(255,255,255,0.02);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.demo-dots { display: flex; gap: 5px; }
.demo-dots span { width: 8px; height: 8px; border-radius: 50%; }
.demo-dots span:nth-child(1) { background: #ff5f57; }
.demo-dots span:nth-child(2) { background: #ffbd2e; }
.demo-dots span:nth-child(3) { background: #28c840; }

.demo-titlebar-text {
    font-family: 'JetBrains Mono', monospace; font-size: 0.65rem;
    color: var(--txt3); letter-spacing: 0.5px;
}

.demo-status {
    font-family: 'JetBrains Mono', monospace; font-size: 0.6rem;
    color: var(--green); display: flex; align-items: center; gap: 4px;
}

.demo-status-dot {
    width: 4px; height: 4px; border-radius: 50%;
    background: var(--green); animation: blink 1.5s infinite;
}

.demo-body {
    display: grid; grid-template-columns: 44px 1fr;
    min-height: 280px;
}

.demo-sidebar {
    background: rgba(255,255,255,0.015);
    border-right: 1px solid rgba(255,255,255,0.04);
    padding: 8px 0; display: flex; flex-direction: column;
    align-items: center; gap: 2px;
}

.demo-sidebar-item {
    width: 32px; height: 32px; border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.7rem; color: var(--txt3); transition: all 0.2s;
}
.demo-sidebar-item.active { background: var(--blue-dim); color: var(--blue); }

.demo-main { padding: 12px; display: flex; flex-direction: column; }

.demo-toolbar {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 10px; padding-bottom: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

.demo-toolbar-left { display: flex; align-items: center; gap: 8px; }

.demo-tab {
    font-family: 'Outfit', sans-serif; font-size: 0.7rem;
    font-weight: 600; padding: 3px 10px; border-radius: 5px;
    color: var(--txt3); transition: all 0.2s;
}
.demo-tab.active { background: var(--blue-dim); color: var(--blue); }

.demo-toolbar-right {
    font-family: 'JetBrains Mono', monospace; font-size: 0.6rem;
    color: var(--txt3); display: flex; align-items: center; gap: 6px;
}

.demo-counter { color: var(--green); font-weight: 600; }

/* Order list */
.demo-orders {
    flex: 1; display: flex; flex-direction: column; gap: 4px;
    overflow: hidden; position: relative;
}

/* Table header */
.demo-order-header {
    display: grid; grid-template-columns: 140px 1fr 72px;
    gap: 8px; padding: 4px 10px;
    font-size: 0.58rem; color: var(--txt3);
    font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    margin-bottom: 4px;
}

.demo-order {
    display: grid; grid-template-columns: 140px 1fr 72px;
    gap: 8px; align-items: center;
    padding: 7px 10px; border-radius: 7px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.03);
    font-size: 0.68rem;
    animation: orderSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
    transition: background 0.3s, border-color 0.3s;
}

.demo-order.printing {
    background: rgba(255,92,157,0.06);
    border-color: rgba(255,92,157,0.12);
}

.demo-order.printed {
    background: rgba(52,211,153,0.04);
    border-color: rgba(52,211,153,0.08);
}

@keyframes orderSlideIn {
    from { opacity: 0; transform: translateY(-8px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.demo-order-no {
    font-family: 'JetBrains Mono', monospace;
    color: var(--txt2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.demo-order-product {
    color: var(--txt2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.demo-order-amount {
    font-family: 'JetBrains Mono', monospace;
    color: var(--txt); font-weight: 600; text-align: right;
}

/* Log area */
.demo-log {
    margin-top: 8px; padding-top: 8px;
    border-top: 1px solid rgba(255,255,255,0.04);
    display: flex; flex-direction: column; gap: 3px;
    max-height: 72px; overflow: hidden;
}

.demo-log-entry {
    font-family: 'JetBrains Mono', monospace; font-size: 0.58rem;
    color: var(--txt3); display: flex; gap: 6px; align-items: center;
    animation: logFadeIn 0.3s ease both;
}

@keyframes logFadeIn { from { opacity: 0; } to { opacity: 1; } }

.demo-log-time { color: var(--txt3); }
.demo-log-action { color: var(--blue); }
.demo-log-success { color: var(--green); }

/* Print animation overlay */
.print-pulse {
    position: absolute; inset: 0; pointer-events: none;
    border: 2px solid transparent; border-radius: 7px;
    animation: printPulse 0.6s ease-out;
}

@keyframes printPulse {
    0% { border-color: rgba(255,92,157,0.4); box-shadow: inset 0 0 20px rgba(255,92,157,0.1); }
    100% { border-color: transparent; box-shadow: none; }
}

/* Floating badges */
.hero-img { position: relative; }
.hero-float {
    position: absolute; padding: 6px 10px; border-radius: 8px;
    background: rgba(24,16,32,0.88); backdrop-filter: blur(12px);
    border: 1px solid var(--border); font-size: 0.7rem; font-weight: 600;
    display: flex; align-items: center; gap: 5px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    animation: hover 3s ease-in-out infinite;
    z-index: 2;
}
.hero-float-1 { top: 36px; right: 8px; }
.hero-float-2 { bottom: 24px; left: 8px; animation-delay: 1s; }
.hero-float-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--green); }

@keyframes hover {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* ─── Features ─── */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }

.feat-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 14px; padding: 24px 22px; transition: all 0.25s;
}
.feat-card:hover {
    background: var(--bg-card-hover); border-color: var(--border-hover);
    transform: translateY(-2px);
}

.feat-icon {
    width: 40px; height: 40px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; margin-bottom: 14px;
}

.fi-blue { background: var(--blue-dim); border: 1px solid rgba(255,92,157,0.12); }
.fi-cyan { background: rgba(255,178,126,0.08); border: 1px solid rgba(255,178,126,0.12); }
.fi-amber { background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.12); }

.feat-card h3 { font-size: 0.98rem; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.2px; }
.feat-card p { color: var(--txt2); font-size: 0.84rem; line-height: 1.6; }

/* ─── Download ─── */
.dl-grid { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: 14px; }

.dl-main {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 14px; padding: 28px; position: relative; overflow: hidden;
}
.dl-main::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 2px; background: linear-gradient(90deg, var(--blue), var(--cyan));
}

.dl-main h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 5px; letter-spacing: -0.3px; }

.dl-sub { color: var(--txt2); font-size: 0.85rem; line-height: 1.5; margin-bottom: 18px; }
.dl-sub a { color: var(--blue); font-weight: 500; }
.dl-sub a:hover { text-decoration: underline; }

.sys-reqs { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.sys-req { display: flex; align-items: center; gap: 5px; font-size: 0.8rem; color: var(--txt2); }
.sys-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--txt3); }

.dl-btns { display: flex; gap: 8px; flex-wrap: wrap; }

.dl-tip {
    display: flex; align-items: flex-start; gap: 8px;
    margin-top: 18px; padding: 10px 12px; border-radius: 8px;
    background: rgba(255,178,126,0.07); border: 1px solid rgba(255,178,126,0.14);
}
.dl-tip-icon {
    flex-shrink: 0; width: 16px; height: 16px; border-radius: 4px;
    background: rgba(255,178,126,0.14); display: flex;
    align-items: center; justify-content: center; font-size: 0.55rem; margin-top: 1px;
}
.dl-tip p { font-size: 0.8rem; color: var(--txt2); line-height: 1.5; }

.dl-side {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 14px; padding: 24px;
}
.dl-side h3 { font-size: 1rem; font-weight: 700; margin-bottom: 5px; }
.dl-side > p { color: var(--txt2); font-size: 0.83rem; line-height: 1.5; margin-bottom: 14px; }

.adv-list { display: flex; flex-direction: column; gap: 7px; }
.adv-item { display: flex; align-items: flex-start; gap: 7px; font-size: 0.82rem; color: var(--txt2); line-height: 1.45; }
.adv-ck {
    flex-shrink: 0; width: 15px; height: 15px; border-radius: 3px;
    background: var(--green-dim); border: 1px solid rgba(52,211,153,0.15);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.55rem; color: var(--green); margin-top: 1px;
}

/* ─── About ─── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.about-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 14px; padding: 24px;
}
.about-card > p { color: var(--txt2); font-size: 0.9rem; line-height: 1.7; margin-bottom: 20px; }

.kpi-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.kpi {
    padding: 12px; border-radius: 8px;
    background: rgba(255,255,255,0.02); border: 1px solid var(--border);
}
.kpi b { font-family: 'Outfit', sans-serif; font-size: 1.2rem; font-weight: 800; display: block; }
.kpi small { font-size: 0.72rem; color: var(--txt3); }

.quote-card { display: flex; flex-direction: column; gap: 10px; }
.quote-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 2px; }
.quote {
    padding: 14px; border-radius: 10px;
    background: rgba(255,255,255,0.02); border: 1px solid var(--border);
    font-size: 0.85rem; color: var(--txt2); line-height: 1.6; font-style: italic;
}
.quote-src {
    display: block; margin-top: 4px; font-style: normal;
    font-size: 0.73rem; color: var(--txt3); font-weight: 500;
}

/* ─── Certification ─── */
.cert-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.cert-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 14px; padding: 24px; transition: all 0.25s;
    display: flex; flex-direction: column; gap: 14px;
}
.cert-card:hover { background: var(--bg-card-hover); border-color: var(--border-hover); }

.cert-head { display: flex; align-items: center; gap: 10px; }
.cert-logo {
    width: 38px; height: 38px; border-radius: 9px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; font-weight: 800; font-family: 'Outfit', sans-serif;
}
.cert-logo-tk { background: #000; color: #fff; border: 1px solid rgba(255,255,255,0.14); }
.cert-logo-sp { background: #ee4d2d; color: #fff; }
.cert-head h3 { font-size: 0.98rem; font-weight: 700; letter-spacing: -0.2px; }
.cert-head small { display: block; font-size: 0.72rem; color: var(--txt3); font-weight: 400; margin-top: 2px; }

.cert-badge {
    margin-left: auto; flex-shrink: 0;
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 0.7rem; font-weight: 600; padding: 4px 10px; border-radius: 100px;
    background: var(--green-dim); color: var(--green);
    border: 1px solid rgba(52,211,153,0.15);
}

.cert-card > p { color: var(--txt2); font-size: 0.84rem; line-height: 1.6; }

.cert-shot {
    position: relative; border-radius: 10px; overflow: hidden;
    border: 1px solid var(--border); cursor: zoom-in;
    background: #120b18; margin-top: auto;
}
.cert-shot img { display: block; width: 100%; height: auto; transition: transform 0.3s; }
.cert-shot:hover img { transform: scale(1.02); }

.cert-zoom {
    position: absolute; right: 10px; bottom: 10px;
    font-size: 0.68rem; font-weight: 600; padding: 4px 10px; border-radius: 100px;
    background: rgba(24,16,32,0.85); backdrop-filter: blur(8px);
    border: 1px solid var(--border); color: var(--txt2);
    pointer-events: none;
}

/* Lightbox */
.lightbox {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(14, 8, 18, 0.92);
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    display: none; align-items: center; justify-content: center;
    padding: 32px; cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img {
    max-width: 100%; max-height: 100%; border-radius: 10px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.6);
}
.lightbox-close {
    position: absolute; top: 16px; right: 24px; font-size: 2rem;
    color: var(--txt2); line-height: 1; font-family: 'Outfit', sans-serif;
}

/* 企业微信二维码弹窗 */
.qr-modal {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(14, 8, 18, 0.92);
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    display: none; align-items: center; justify-content: center;
    padding: 24px;
}
.qr-modal.open { display: flex; }
.qr-card {
    position: relative; text-align: center;
    background: var(--bg2); border: 1px solid var(--border-hover);
    border-radius: 16px; padding: 28px 32px 24px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.6);
    max-width: 320px; width: 100%;
}
.qr-card h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 4px; }
.qr-card p { color: var(--txt2); font-size: 0.82rem; margin-bottom: 16px; }
.qr-card img {
    display: block; width: 100%; max-width: 220px; aspect-ratio: 1 / 1;
    margin: 0 auto; border-radius: 10px; background: #fff; padding: 8px;
}
.qr-card small { display: block; margin-top: 14px; font-size: 0.72rem; color: var(--txt3); }
.qr-card small a { color: var(--blue); }
.qr-card small a:hover { text-decoration: underline; }
.qr-close {
    position: absolute; top: 10px; right: 16px; font-size: 1.5rem;
    color: var(--txt3); line-height: 1; cursor: pointer;
    font-family: 'Outfit', sans-serif; transition: color 0.2s;
}
.qr-close:hover { color: var(--txt); }

/* ─── FAQ ─── */
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

/* 首页 FAQ：点击直达详情页的链接条目 */
.faq-link {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 16px 18px; border-radius: 10px;
    background: var(--bg-card); border: 1px solid var(--border);
    transition: all 0.2s;
}
.faq-link:hover { background: var(--bg-card-hover); border-color: var(--border-hover); transform: translateY(-1px); }
.faq-link-q { font-weight: 600; font-size: 0.88rem; line-height: 1.5; }
.faq-link-arrow { flex-shrink: 0; color: var(--txt3); font-family: 'Outfit', sans-serif; transition: color 0.2s, transform 0.2s; }
.faq-link:hover .faq-link-arrow { color: var(--blue); transform: translateX(3px); }

/* 首页 FAQ「查看全部」 */
.faq-more { margin-top: 20px; text-align: center; }

.faq-item {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; overflow: hidden; transition: border-color 0.2s;
}
.faq-item:hover { border-color: var(--border-hover); }

.faq-item summary {
    padding: 14px 18px; font-weight: 600; font-size: 0.88rem;
    cursor: pointer; list-style: none; display: flex;
    align-items: center; justify-content: space-between; gap: 10px;
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
    content: '+'; font-family: 'Outfit', sans-serif; font-size: 1rem;
    font-weight: 300; color: var(--txt3); flex-shrink: 0; transition: transform 0.2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item[open] summary { border-bottom: 1px solid var(--border); }

.faq-a { padding: 14px 18px; color: var(--txt2); font-size: 0.85rem; line-height: 1.65; }
.faq-a a { color: var(--blue); }
.faq-a a:hover { text-decoration: underline; }

/* ─── Footer ─── */
.site-footer { border-top: 1px solid var(--border); padding: 36px 40px; }

.foot-grid { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: 28px; max-width: 1280px; margin: 0 auto; }

.foot-brand { font-family: 'Outfit', sans-serif; font-weight: 700; font-size: 0.9rem; margin-bottom: 8px; }
.foot-info { display: flex; flex-direction: column; gap: 2px; }
.foot-info small { font-size: 0.72rem; color: var(--txt3); line-height: 1.55; }
.foot-info small.ck { cursor: pointer; transition: color 0.2s; }
.foot-info small.ck:hover { color: var(--txt2); }
.foot-btns { display: flex; gap: 8px; justify-content: flex-end; align-items: flex-start; }

/* ─── Reveal ─── */
.rv { opacity: 0; transform: translateY(14px); transition: opacity 0.5s, transform 0.5s; }
.rv.on { opacity: 1; transform: translateY(0); }
.rv-d1 { transition-delay: 0.08s; }
.rv-d2 { transition-delay: 0.12s; }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        padding: 90px 32px 44px;
        gap: 32px;
    }
    .hero-img { max-width: 520px; margin: 0 auto; }
    .feat-grid { grid-template-columns: repeat(2, 1fr); }
    .dl-grid, .about-grid, .cert-grid { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .sec { padding: 52px 32px; }
    .site-footer { padding: 32px; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: clamp(1.5rem, 6vw, 2.2rem); }
    .hero-desc { font-size: 0.92rem; }
    .hero-btns { flex-direction: column; }
    .hero-btns .btn { width: 100%; text-align: center; justify-content: center; }
    .hero-stats { gap: 20px; }
    .hero-stat b { font-size: 1.15rem; }

    .order-demo { margin: 0 -8px; border-radius: 10px; }
    .demo-body { min-height: 220px; }
    .demo-order { grid-template-columns: 120px 1fr 64px; font-size: 0.62rem; }
    .demo-order-header { grid-template-columns: 120px 1fr 64px; }

    .feat-grid { grid-template-columns: 1fr; gap: 10px; }
    .feat-card { padding: 20px 18px; }

    .kpi-row { grid-template-columns: 1fr; gap: 6px; }
}

@media (max-width: 480px) {
    .nav-inner { padding: 0 16px; height: 60px; }
    .nav-brand span { font-size: 1rem; max-width: 50vw; }
    .sec { padding: 40px 16px; }
    .hero { padding: 76px 16px 32px; gap: 24px; }
    .site-footer { padding: 28px 16px; }

    .hero-eyebrow { font-size: 0.7rem; }
    .hero h1 { letter-spacing: -0.8px; }
    .hero-desc { font-size: 0.88rem; margin-bottom: 20px; }
    .hero-btns { margin-bottom: 28px; }
    .hero-stats { gap: 16px; display: flex; justify-content: center; }
    .hero-stat b { font-size: 1rem; }
    .hero-stat small { font-size: 0.68rem; }

    .demo-sidebar { display: none; }
    .demo-body { grid-template-columns: 1fr; }
    .demo-order { grid-template-columns: 100px 1fr 56px; gap: 4px; padding: 6px 8px; }
    .demo-order-header { grid-template-columns: 100px 1fr 56px; }
    .demo-order-no { font-size: 0.58rem; }

    .dl-main, .dl-side, .about-card, .cert-card { padding: 18px; }
    .lightbox { padding: 12px; }
    .sys-reqs { flex-direction: column; gap: 4px; }
    .foot-grid { grid-template-columns: 1fr; }
    .foot-btns { justify-content: flex-start; flex-wrap: wrap; }

    .btn { padding: 9px 16px; font-size: 0.84rem; }
    .sec-title { font-size: 1.3rem; }
}