/* ===== Variables ===== */
:root {
    color-scheme: light;
    --bg: #f4f7f6;
    --bg-elevated: #e9f0ee;
    --bg-card: #ffffff;
    --text: #14211e;
    --text-muted: #61706c;
    --accent: #0b846f;
    --accent-2: #2c7fa3;
    --accent-rgb: 11, 132, 111;
    --accent-soft: rgba(11, 132, 111, 0.1);
    --accent-border: rgba(11, 132, 111, 0.28);
    --accent-glow: rgba(11, 132, 111, 0.22);
    --accent-hover: #087663;
    --on-accent: #ffffff;
    --border: #d9e3e0;
    --border-strong: #c5d3cf;
    --shadow-soft: rgba(25, 55, 47, 0.11);
    --shadow-strong: rgba(25, 55, 47, 0.18);
    --radius: 16px;
    --radius-sm: 10px;
    --font: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --nav-h: 82px;
    --transition: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Search-friendly service content ===== */
.seo-service-section {
    display: grid;
    gap: 36px;
}

.seo-service-intro {
    max-width: 780px;
}

.section-kicker {
    display: inline-block;
    margin-bottom: 12px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .14em;
}

.seo-service-intro p {
    margin-top: 16px;
    color: var(--text-muted);
    line-height: 1.9;
}

.seo-service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.seo-service-card {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: linear-gradient(145deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
}

.seo-service-card > span {
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
}

.seo-service-card h3 {
    margin: 18px 0 10px;
    font-size: 21px;
}

.seo-service-card h3 a:hover {
    color: var(--accent);
}

.seo-service-card p,
.faq-block details p {
    color: var(--text-muted);
    line-height: 1.8;
}

.faq-block {
    padding-top: 18px;
}

.faq-block h2 {
    margin-bottom: 18px;
}

.faq-block details {
    border-top: 1px solid var(--border);
    padding: 18px 0;
}

.faq-block details:last-child {
    border-bottom: 1px solid var(--border);
}

.faq-block summary {
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
}

.faq-block details p {
    max-width: 880px;
    padding-top: 12px;
}

@media (max-width: 820px) {
    .seo-service-grid { grid-template-columns: 1fr; }
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: var(--on-accent);
}
.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-outline {
    border: 1.5px solid var(--border-strong);
    color: var(--text);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-ghost {
    color: var(--text-muted);
}
.btn-ghost:hover { color: var(--text); }

.btn-lg { padding: 14px 32px; font-size: 15px; }
.btn-full { width: 100%; }

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: var(--nav-h);
    padding: 10px 18px;
    transition: var(--transition);
}

.nav.scrolled {
    background: transparent;
}

.nav-inner {
    position: relative;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 14px 0 10px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 28px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 18px;
    background:
        linear-gradient(100deg, rgba(255,255,255,0.04), transparent 34%),
        rgba(16, 20, 19, 0.78);
    box-shadow: 0 14px 40px rgba(0,0,0,0.24);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.nav-inner::before {
    content: '';
    position: absolute;
    left: 16px;
    top: 8px;
    bottom: 8px;
    width: 126px;
    border-radius: 14px;
    background: radial-gradient(circle at 20% 50%, rgba(var(--accent-rgb),0.11), transparent 70%);
    pointer-events: none;
}

.nav.scrolled .nav-inner {
    border-color: rgba(255,255,255,0.11);
    background: rgba(12, 15, 14, 0.94);
    box-shadow: 0 16px 44px rgba(0,0,0,0.42);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.logo-icon { width: 28px; height: 28px; color: var(--accent); }

.logo-mark {
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background-repeat: no-repeat;
    background-size: contain;
    background-position: center;
}

.logo-mark.cms-has-image > * { display: none; }

.logo.logo-image-only {
    position: relative;
    z-index: 1;
    width: 158px;
    height: 48px;
    padding: 3px 5px;
    justify-content: center;
    overflow: hidden;
    border: 0;
    border-radius: 10px;
    background: transparent;
    box-shadow: none;
}

.site-logo-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.22));
}

.nav .logo-image-only { margin-right: 2px; }
.footer .logo-image-only { width: 190px; height: 68px; }

.nav-links {
    display: flex;
    gap: 28px;
    flex: 1;
}

.nav-links .nav-link {
    font-size: 14px;
    color: var(--text-muted);
    transition: color 0.2s;
}
.nav-links .nav-link:hover,
.nav-links .nav-link.active { color: var(--text); }
.nav-links .nav-link.active { color: var(--accent); }

.nav-dropdown { position: relative; }
.nav-link.has-dropdown { display: flex; align-items: center; gap: 4px; }
.nav-link .arrow { font-size: 10px; opacity: 0.6; }

.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 180px;
    background: rgba(20, 20, 20, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 100;
}
.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.dropdown-item {
    display: block;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--text-muted);
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
}
.dropdown-item:hover {
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
}

.nav-actions { display: flex; gap: 12px; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(460px, 0.98fr) minmax(500px, 1.02fr);
    align-items: center;
    gap: 64px;
    width: 100%;
    max-width: none;
    margin: 0 auto;
    padding:
        calc(var(--nav-h) + 54px)
        max(40px, calc((100vw - 1280px) / 2 + 40px))
        76px;
    overflow: hidden;
    background: #080a09;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 10% 2% 8%;
    pointer-events: none;
    background:
        linear-gradient(rgba(127, 148, 142, 0.022) 1px, transparent 1px),
        linear-gradient(90deg, rgba(127, 148, 142, 0.022) 1px, transparent 1px);
    background-size: 88px 88px;
    mask-image: radial-gradient(ellipse at 62% 48%, #000 0%, rgba(0,0,0,0.55) 38%, transparent 72%);
    z-index: 1;
}

.hero-backdrop {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-image: url('/img/solutions-enterprise-banner.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center 52%;
    pointer-events: none;
}

.hero-backdrop::before,
.hero-backdrop::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-backdrop::before {
    background:
        linear-gradient(90deg,
            rgba(8,10,9,0.99) 0%,
            rgba(8,10,9,0.96) 27%,
            rgba(8,10,9,0.82) 48%,
            rgba(8,10,9,0.62) 72%,
            rgba(8,10,9,0.83) 100%),
        linear-gradient(180deg,
            rgba(8,10,9,0.78) 0%,
            rgba(8,10,9,0.26) 42%,
            rgba(8,10,9,0.92) 100%);
}

.hero-backdrop::after {
    background:
        radial-gradient(ellipse at 72% 42%, rgba(57,129,111,0.12), transparent 36%),
        linear-gradient(90deg, transparent 0 58%, rgba(154,181,174,0.055) 58% 58.08%, transparent 58.08%),
        linear-gradient(180deg, transparent 0 68%, rgba(154,181,174,0.045) 68% 68.12%, transparent 68.12%);
}

.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.5;
}

.hero-glow {
    position: absolute;
    top: 14%;
    left: 43%;
    width: 660px;
    height: 500px;
    background: radial-gradient(ellipse at 50% 48%, rgba(18, 112, 93, 0.16) 0%, transparent 68%);
    filter: blur(96px);
    opacity: 0.72;
    pointer-events: none;
    z-index: 1;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.15); }
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-left: 4px;
    max-width: 590px;
}

.hero-badge {
    display: inline-block;
    padding: 7px 14px;
    border-radius: 100px;
    border: 1px solid rgba(117, 174, 160, 0.24);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .05em;
    color: #88b9ad;
    margin-bottom: 24px;
    background: rgba(34, 63, 56, 0.22);
}

.hero-title {
    font-size: clamp(46px, 3.9vw, 60px);
    font-weight: 720;
    line-height: 1.12;
    letter-spacing: -0.035em;
    margin-bottom: 26px;
    text-shadow: 0 12px 36px rgba(0,0,0,0.34);
}

.hero-line {
    display: block;
    white-space: nowrap;
}
.hero-line-accent {
    margin-top: 4px;
    color: #68b6a4;
}

.hero-desc {
    font-size: 16px;
    color: #a7aeab;
    max-width: 560px;
    margin-bottom: 32px;
    line-height: 1.9;
}

.hero-cta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.hero-cta .btn {
    min-width: 132px;
    min-height: 50px;
    font-weight: 650;
}

.hero-cta .btn-primary {
    border: 1px solid rgba(116, 194, 176, 0.22);
    background: #197f6c;
    color: #f5fbf9;
    box-shadow: 0 12px 28px rgba(0,0,0,0.26);
}

.hero-cta .btn-primary:hover {
    background: #218c77;
    box-shadow: 0 14px 34px rgba(0,0,0,0.34);
}

.hero-cta .btn-outline {
    border-color: rgba(176, 194, 189, 0.24);
    color: #d5dbd9;
    background: rgba(255,255,255,0.018);
}

.hero-note {
    font-size: 12px;
    color: #6f7875;
    letter-spacing: .02em;
}

.hero-visual {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 420px;
}

.screen-mockup {
    position: relative;
    width: 100%;
    max-width: 590px;
    padding: 18px 18px 14px;
    border: 1px solid rgba(176, 194, 189, 0.12);
    border-radius: 20px;
    background: linear-gradient(145deg, rgba(31,36,34,0.88), rgba(14,17,16,0.94));
    box-shadow: 0 30px 90px rgba(0,0,0,0.48);
}

.screen-mockup::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 34px;
    width: 96px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(112, 185, 168, 0.8), transparent);
    pointer-events: none;
}

.screen-mockup::after {
    content: '';
    position: absolute;
    left: 18%;
    right: 18%;
    bottom: -22px;
    height: 10px;
    border-radius: 999px;
    background: rgba(0,0,0,0.58);
    filter: blur(14px);
    pointer-events: none;
}

@keyframes floatScreen {
    0%, 100% { transform: translateY(0) rotateY(-5deg); }
    50% { transform: translateY(-16px) rotateY(5deg); }
}

.screen-frame {
    width: 100%;
    padding: 8px;
    background: #101312;
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow:
        0 18px 42px rgba(0,0,0,0.42),
        inset 0 1px 0 rgba(255,255,255,0.07);
}

.screen-content {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: 10px;
    overflow: hidden;
    background: #000;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
}

.screen-content.cms-has-image {
    background-repeat: no-repeat !important;
    background-size: cover !important;
    background-position: center !important;
}

.screen-content.cms-has-image::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(120deg, rgba(255,255,255,0.07), transparent 28%),
        linear-gradient(180deg, transparent 58%, rgba(0,0,0,0.32));
}

.screen-content.cms-has-image > * {
    display: none !important;
}

.screen-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    height: 100%;
    gap: 2px;
}

.screen-cell {
    background: hsl(calc(160 + var(--i) * 15), 70%, calc(25% + var(--i) * 3%));
    animation: cellPulse 3s ease-in-out infinite;
    animation-delay: calc(var(--i) * 0.3s);
}

@keyframes cellPulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; filter: brightness(1.3); }
}

.screen-overlay {
    position: absolute;
    bottom: 14px;
    left: 14px;
}

.screen-label {
    padding: 5px 10px;
    background: rgba(9,13,12,0.78);
    backdrop-filter: blur(8px);
    border-radius: 5px;
    font-size: 11px;
    color: #c2ceca;
    border: 1px solid rgba(255,255,255,0.12);
}

.hero-visual-meta {
    display: flex;
    align-items: center;
    gap: 0;
    min-height: 42px;
    padding: 10px 4px 0;
    color: #747e7b;
    font-size: 11px;
}

.hero-visual-meta span {
    display: inline-flex;
    align-items: center;
}

.hero-visual-meta span:not(:last-of-type)::after {
    content: '';
    width: 3px;
    height: 3px;
    margin: 0 10px;
    border-radius: 50%;
    background: #3f4d49;
}

.hero-visual-meta strong {
    margin-left: auto;
    color: #9aacA7;
    font-size: 11px;
    font-weight: 600;
}

.control-panel {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    padding: 12px 16px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.ctrl-btn {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: #333;
    transition: var(--transition);
}
.ctrl-btn.active {
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.ctrl-slider {
    flex: 1;
    height: 4px;
    background: #333;
    border-radius: 2px;
    position: relative;
}
.ctrl-thumb {
    position: absolute;
    left: 60%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    animation: thumbMove 4s ease-in-out infinite;
}

@keyframes thumbMove {
    0%, 100% { left: 30%; }
    50% { left: 75%; }
}

.hero-scroll-hint {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: #555;
    animation: fadeBounce 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid #555;
    border-bottom: 2px solid #555;
    transform: rotate(45deg);
}

@keyframes fadeBounce {
    0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
    50% { opacity: 1; transform: translateX(-50%) translateY(6px); }
}

/* ===== Trust / Marquee ===== */
.trust {
    padding: 48px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

.trust-label {
    text-align: center;
    font-size: 13px;
    color: #666;
    margin-bottom: 28px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.marquee {
    mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marquee 30s linear infinite;
    will-change: transform;
}

.marquee-group {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    gap: 64px;
    padding-right: 64px;
}

.marquee-group span {
    font-size: 20px;
    font-weight: 600;
    color: #444;
    white-space: nowrap;
    transition: color 0.3s;
}
.marquee-group span:hover { color: #888; }

@keyframes marquee {
    from { transform: translate3d(0, 0, 0); }
    to { transform: translate3d(-50%, 0, 0); }
}

/* ===== Showcase Carousel ===== */
.showcase {
    padding: 120px 0 80px;
    overflow: hidden;
}

.showcase-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
    padding: 0 32px;
}

.showcase-header h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.showcase-header p { color: var(--text-muted); font-size: 17px; }

.showcase-carousel {
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.carousel-track {
    display: flex;
    gap: 24px;
    animation: carouselScroll 25s linear infinite;
    width: max-content;
    padding: 0 32px;
}

.carousel-track:hover { animation-play-state: paused; }

@keyframes carouselScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.carousel-card {
    width: 320px;
    flex-shrink: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
}
.carousel-card:hover {
    border-color: rgba(var(--accent-rgb),0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.card-visual {
    height: 180px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
}

.led-wall {
    background: linear-gradient(135deg, #0d1f1a, #0a2a20);
}
.link-card-visual.cms-has-image,
.card-visual.cms-has-image,
.panel-visual.cms-has-image {
    background-repeat: no-repeat !important;
    background-size: cover !important;
    background-position: center !important;
}
.link-card-visual.cms-has-image > *,
.card-visual.cms-has-image > *,
.panel-visual.cms-has-image > * {
    display: none !important;
}
.link-card-visual.cms-has-image::before,
.link-card-visual.cms-has-image::after,
.card-visual.cms-has-image::before,
.card-visual.cms-has-image::after,
.panel-visual.cms-has-image::before,
.panel-visual.cms-has-image::after {
    content: none !important;
    display: none !important;
}
.led-pixels {
    position: absolute;
    inset: 16px;
    background-image:
        radial-gradient(circle, var(--accent) 1px, transparent 1px);
    background-size: 8px 8px;
    animation: pixelShimmer 2s ease-in-out infinite;
}
@keyframes pixelShimmer {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.control-sys {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}
.ctrl-screen {
    width: 100px;
    height: 70px;
    background: #000;
    border-radius: 6px;
    border: 2px solid var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}
.ctrl-nodes { display: flex; flex-direction: column; gap: 8px; }
.ctrl-nodes span {
    width: 40px;
    height: 8px;
    background: #333;
    border-radius: 4px;
    animation: nodeBlink 1.5s ease-in-out infinite;
}
.ctrl-nodes span:nth-child(2) { animation-delay: 0.3s; background: var(--accent); }
.ctrl-nodes span:nth-child(3) { animation-delay: 0.6s; }

@keyframes nodeBlink {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

.aio {
    background: linear-gradient(135deg, #1e1e1e, #2d2d2d);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 20px;
}
.aio-body {
    width: 60px;
    height: 120px;
    background: linear-gradient(180deg, #444, #222);
    border-radius: 8px 8px 4px 4px;
    position: relative;
}
.aio-body::before {
    content: '';
    position: absolute;
    top: 8px; left: 6px; right: 6px;
    height: 80px;
    background: #111;
    border-radius: 4px;
    border: 1px solid #555;
}
.aio-pen {
    width: 4px;
    height: 50px;
    background: #888;
    border-radius: 2px;
    margin-left: -20px;
    margin-bottom: 30px;
    animation: penFloat 3s ease-in-out infinite;
}
@keyframes penFloat {
    0%, 100% { transform: translateY(0) rotate(-15deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

.naked3d {
    background: linear-gradient(135deg, #0a1628, #1a0a2e);
    display: flex;
    align-items: center;
    justify-content: center;
}
.cube-3d {
    width: 80px;
    height: 80px;
    animation: cubeRotate 6s linear infinite;
    transform-style: preserve-3d;
}
.cube-face {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 12px;
    box-shadow: 0 0 40px var(--accent-glow);
}
@keyframes cubeRotate {
    0% { transform: rotateX(15deg) rotateY(0deg); }
    100% { transform: rotateX(15deg) rotateY(360deg); }
}

.carousel-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}
.carousel-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ===== Features ===== */
.features {
    padding: 120px 32px;
    max-width: 1280px;
    margin: 0 auto;
}

.features-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 80px;
}

.features-intro h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
}
.features-intro p { color: var(--text-muted); font-size: 17px; }

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.feature-card:hover {
    border-color: rgba(var(--accent-rgb),0.2);
    transform: translateY(-4px);
}

.feature-visual {
    height: 220px;
    position: relative;
    overflow: hidden;
}

.fv-display { background: radial-gradient(ellipse at center, #0d2a20, #0a0a0a); }
.pixel-wave {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 20px,
        rgba(var(--accent-rgb),0.05) 20px,
        rgba(var(--accent-rgb),0.05) 21px
    );
    animation: waveMove 3s linear infinite;
}
@keyframes waveMove {
    0% { transform: translateX(0); }
    100% { transform: translateX(40px); }
}

.fv-control { background: radial-gradient(ellipse at center, #0a1a2e, #0a0a0a); }
.orbit-system {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.orbit-center {
    width: 24px;
    height: 24px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 30px var(--accent-glow);
    z-index: 2;
}
.orbit-ring {
    position: absolute;
    border: 1px dashed rgba(var(--accent-rgb),0.3);
    border-radius: 50%;
    animation: orbitSpin 8s linear infinite;
}
.ring-1 { width: 120px; height: 120px; }
.ring-2 { width: 180px; height: 180px; animation-duration: 12s; animation-direction: reverse; }
.orbit-ring span {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent-2);
    border-radius: 50%;
}
.ring-1 span:nth-child(1) { top: -5px; left: 50%; transform: translateX(-50%); }
.ring-1 span:nth-child(2) { bottom: -5px; left: 50%; transform: translateX(-50%); }
.ring-1 span:nth-child(3) { left: -5px; top: 50%; transform: translateY(-50%); }
.ring-2 span:nth-child(1) { top: -5px; right: 20%; }
.ring-2 span:nth-child(2) { bottom: -5px; left: 20%; }

@keyframes orbitSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fv-collab { background: radial-gradient(ellipse at center, #1a0a2e, #0a0a0a); }
.signal-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 0;
}
.signal-node {
    padding: 10px 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
}
.signal-line {
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    position: relative;
}
.signal-line::after {
    content: '';
    position: absolute;
    right: 0; top: -3px;
    width: 8px; height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: signalPulse 1.5s ease-in-out infinite;
}
@keyframes signalPulse {
    0%, 100% { opacity: 0.3; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}

.fv-structure { background: radial-gradient(ellipse at center, #1a1a0a, #0a0a0a); }
.module-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    padding: 40px;
    height: 100%;
}
.mod {
    background: #222;
    border-radius: 4px;
    border: 1px solid #333;
    transition: var(--transition);
    animation: modGlow 4s ease-in-out infinite;
}
.mod:nth-child(odd) { animation-delay: 0.5s; }
.mod:nth-child(3n) { animation-delay: 1s; }
@keyframes modGlow {
    0%, 100% { border-color: #333; }
    50% { border-color: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }
}

.feature-text { padding: 28px 32px 32px; }
.feature-text h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}
.feature-text p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===== Solutions ===== */
.solutions {
    padding: 120px 32px;
    max-width: 1280px;
    margin: 0 auto;
}

.solutions-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
}
.solutions-header h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
}
.solutions-header p { color: var(--text-muted); }

.tab-nav {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.tab-btn {
    padding: 10px 24px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    border: 1px solid transparent;
    transition: var(--transition);
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active {
    color: var(--accent);
    border-color: rgba(var(--accent-rgb),0.3);
    background: rgba(var(--accent-rgb),0.08);
}

.tab-panels { position: relative; min-height: 400px; }

.tab-panel {
    display: none;
    animation: tabFadeIn 0.5s ease;
}
.tab-panel.active { display: block; }

@keyframes tabFadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.panel-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    overflow: hidden;
}

.panel-visual {
    height: 320px;
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
}

.enterprise-vis {
    background: linear-gradient(135deg, #0d1f1a 0%, #1a3a2e 50%, #0a2a40 100%);
}
.enterprise-vis::after {
    content: '';
    position: absolute;
    inset: 20%;
    border: 2px solid rgba(var(--accent-rgb),0.3);
    border-radius: 8px;
    animation: borderGlow 3s ease-in-out infinite;
}
.museum-vis {
    background: linear-gradient(135deg, #2a1a0a, #4a3020, #1a2a3a);
}
.meeting-vis {
    background: linear-gradient(135deg, #1a1a2e, #2d2d4a, #1a3a2e);
}
.command-vis {
    background: linear-gradient(135deg, #0a0a20, #1a1a40, #0a2030);
}
.retail-vis {
    background: linear-gradient(135deg, #2a0a1a, #4a1a3a, #2a2a0a);
}

@keyframes borderGlow {
    0%, 100% { box-shadow: inset 0 0 20px rgba(var(--accent-rgb),0.1); }
    50% { box-shadow: inset 0 0 40px rgba(var(--accent-rgb),0.3); }
}

.panel-text h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}
.panel-text p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 24px;
}

.panel-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.panel-tags li {
    padding: 6px 14px;
    background: rgba(var(--accent-rgb),0.1);
    border: 1px solid rgba(var(--accent-rgb),0.2);
    border-radius: 100px;
    font-size: 13px;
    color: var(--accent);
}

.solutions-cta {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 48px;
    flex-wrap: wrap;
}

/* ===== Stats ===== */
.stats {
    padding: 80px 32px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-elevated);
}

.stats-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-num {
    font-size: clamp(40px, 5vw, 56px);
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-suffix {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
}
.stat-item p {
    margin-top: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

/* ===== Security ===== */
.security {
    padding: 120px 32px;
    max-width: 1280px;
    margin: 0 auto;
}

.security h2 {
    text-align: center;
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 700;
    margin-bottom: 60px;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.security-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}
.security-card:hover {
    transform: translateY(-6px);
    border-color: rgba(var(--accent-rgb),0.2);
}

.sec-icon {
    font-size: 32px;
    margin-bottom: 16px;
}
.security-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
}
.security-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== CTA / Contact ===== */
.cta-section {
    position: relative;
    padding: 120px 32px;
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    bottom: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, var(--accent-glow), transparent 70%);
    filter: blur(60px);
    pointer-events: none;
}

.cta-content { position: relative; z-index: 2; }

.cta-content h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
}
.cta-content > p {
    color: var(--text-muted);
    font-size: 17px;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.cta-note { font-size: 13px; color: #666; }

.contact-form {
    position: relative;
    z-index: 2;
    background: linear-gradient(145deg, rgba(23,23,23,0.98), rgba(14,14,14,0.98));
}

.contact-form-header { margin-bottom: 28px; }
.contact-form-header h2 {
    margin: 4px 0 8px;
    font-size: clamp(24px, 3vw, 32px);
    line-height: 1.3;
}
.contact-form-header p { color: var(--text-muted); font-size: 14px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-field {
    display: block;
    margin-bottom: 16px;
    color: #d5d5d5;
    font-size: 13px;
    font-weight: 600;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    min-height: 50px;
    padding: 13px 15px;
    margin-top: 7px;
    background: rgba(6,6,6,0.72);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    font-weight: 400;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb),0.09);
}
.contact-form select { appearance: none; }
.contact-form textarea { resize: vertical; min-height: 112px; }
.contact-form button { min-height: 50px; margin-top: 2px; font-weight: 700; }
.contact-consent { margin-top: 12px; color: #666; font-size: 12px; text-align: center; }

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--border);
    padding: 64px 32px 32px;
    max-width: 1280px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: minmax(250px, 1.7fr) repeat(3, minmax(100px, 0.7fr)) minmax(150px, 0.85fr);
    gap: 36px;
    margin-bottom: 48px;
}

.footer-brand p {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-muted);
    max-width: 280px;
    line-height: 1.7;
}

.footer-col h5,
.footer-wechat h5 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: #888;
    margin-bottom: 10px;
    transition: color 0.2s;
}
.footer-col a:hover { color: var(--text); }

.footer-wechat {
    min-width: 0;
}

.footer-wechat p {
    max-width: 150px;
    margin-top: 10px;
    color: #777;
    font-size: 12px;
    line-height: 1.6;
}

.wechat-qr-shell {
    position: relative;
    display: grid;
    place-items: center;
    overflow: hidden;
    aspect-ratio: 1;
    border: 1px solid rgba(var(--accent-rgb), 0.24);
    border-radius: 16px;
    background: #f4f8f7;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.2);
}

.wechat-qr-image {
    position: absolute;
    inset: 9px;
    z-index: 1;
    width: calc(100% - 18px);
    height: calc(100% - 18px);
    object-fit: contain;
}

.wechat-qr-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 7px;
    z-index: 2;
    padding: 12px;
    color: #173e35;
    text-align: center;
    pointer-events: none;
}

.wechat-qr-placeholder::before {
    content: '';
    width: 28px;
    height: 28px;
    border: 2px solid #00a987;
    border-radius: 8px;
    box-shadow: 8px 8px 0 rgba(0, 169, 135, 0.14);
}

.wechat-qr-placeholder span {
    color: #08715d;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.12em;
}

.wechat-qr-placeholder small {
    color: #5b746e;
    font-size: 9px;
    line-height: 1.35;
}

.wechat-qr-shell.has-qr .wechat-qr-placeholder {
    display: none;
}

.footer-qr-shell {
    width: 126px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: #555;
}

/* ===== Reveal Animation ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.cms-edit-mode .reveal {
    opacity: 1 !important;
    transform: none !important;
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
    }
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

@media (max-width: 768px) {
    .hero-canvas { display: none; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        min-height: auto;
        gap: 48px;
        padding: calc(var(--nav-h) + 54px) 32px 80px;
    }
    .hero-content { margin: 0 auto; }
    .hero-desc { margin: 0 auto 36px; }
    .hero-cta, .hero-note { justify-content: center; }
    .hero-visual { min-height: 0; }
    .screen-mockup { max-width: 650px; }
    .screen-frame { width: 100%; }

    .features-grid { grid-template-columns: 1fr; }
    .panel-content { grid-template-columns: 1fr; }
    .panel-visual { height: 240px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .security-grid { grid-template-columns: repeat(2, 1fr); }
    .cta-section { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ===== Multi-page Layout ===== */
.page-wrap {
    padding-top: var(--nav-h);
    min-height: 100vh;
}

.page-hero {
    position: relative;
    padding: 80px 32px 60px;
    text-align: center;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}
.page-hero.compact { padding: 60px 32px 48px; }

.page-hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(var(--accent-rgb),0.12), transparent 60%);
    pointer-events: none;
}

.page-hero h1 {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    position: relative;
}
.page-hero p {
    font-size: 17px;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
    position: relative;
}

.breadcrumb-wrap {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 32px 0;
}
.breadcrumb {
    font-size: 13px;
    color: #666;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
}
.breadcrumb a { color: var(--text-muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: #444; }
.breadcrumb-current { color: var(--accent); }

.section-block {
    max-width: 1280px;
    margin: 0 auto;
    padding: 80px 32px;
}
.section-block h2 {
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 700;
    margin-bottom: 16px;
}
.section-block .section-desc {
    color: var(--text-muted);
    font-size: 16px;
    margin-bottom: 48px;
    max-width: 600px;
}
.section-block.center { text-align: center; }
.section-block.center .section-desc { margin-left: auto; margin-right: auto; }

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.link-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.link-card:hover {
    border-color: rgba(var(--accent-rgb),0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.link-card-visual { height: 200px; }
.link-card-body { padding: 24px; }
.link-card-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.link-card-body p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.link-card-body .more {
    font-size: 13px;
    color: var(--accent);
    font-weight: 500;
}

.product-catalog {
    padding-top: 68px;
}

.product-catalog-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 32px;
}

.product-catalog-head .section-kicker {
    margin-bottom: 8px;
}

.product-catalog-head h2 {
    margin-bottom: 0;
}

.product-catalog-head > p {
    max-width: 420px;
    color: var(--text-muted);
    text-align: right;
}

.product-index-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: stretch;
}

.product-index-grid .link-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
}

.product-index-grid .link-card-visual {
    height: 176px;
    flex: 0 0 176px;
    background-size: cover;
    background-position: center;
    transition: filter .35s ease, transform .35s ease;
}

.product-index-grid .link-card:hover .link-card-visual {
    filter: saturate(1.08) brightness(1.05);
}

.product-index-grid .link-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 22px;
}

.product-index-grid .link-card-body p {
    display: -webkit-box;
    min-height: 67px;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.product-index-grid .link-card-body .more {
    margin-top: auto;
}

.product-more {
    margin-top: 38px;
    text-align: center;
}

.product-more-toggle {
    min-width: 190px;
    gap: 12px;
    background: rgba(var(--accent-rgb),0.04);
}

.product-more-arrow {
    display: inline-block;
    color: var(--accent);
    transition: transform .3s ease;
}

.product-more-toggle[aria-expanded="true"] .product-more-arrow {
    transform: rotate(180deg);
}

.product-more-panel {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-top: 22px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(255,255,255,0.025);
    text-align: left;
    animation: productPanelIn .35s ease both;
}

.product-more-panel[hidden] {
    display: none;
}

.product-more-panel a {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 4px;
    padding: 16px;
    border: 1px solid transparent;
    border-radius: 12px;
    background: rgba(255,255,255,0.025);
    transition: border-color .25s ease, background .25s ease, transform .25s ease;
}

.product-more-panel a:hover {
    border-color: rgba(var(--accent-rgb),0.24);
    background: rgba(var(--accent-rgb),0.06);
    transform: translateY(-2px);
}

.product-more-panel strong {
    font-size: 14px;
}

.product-more-panel span {
    overflow: hidden;
    color: var(--text-muted);
    font-size: 12px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@keyframes productPanelIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1080px) {
    .product-index-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .product-more-panel {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .product-catalog-head {
        display: block;
    }

    .product-catalog-head > p {
        margin-top: 14px;
        text-align: left;
    }

    .product-index-grid,
    .product-more-panel {
        grid-template-columns: 1fr;
    }
}

.detail-layout {
    max-width: 1280px;
    margin: 0 auto;
    padding: 48px 32px 100px;
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 48px;
    align-items: start;
}
.detail-main h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 40px 0 16px;
}
.detail-main h2:first-child { margin-top: 0; }
.detail-main p, .detail-main li {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.8;
}
.detail-main ul { padding-left: 20px; margin: 16px 0; }
.detail-main li { margin-bottom: 8px; }

.spec-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}
.spec-table th, .spec-table td {
    padding: 14px 16px;
    border: 1px solid var(--border);
    text-align: left;
}
.spec-table th {
    background: var(--bg-elevated);
    color: var(--text);
    font-weight: 600;
    width: 35%;
}
.spec-table td { color: var(--text-muted); }

.detail-sidebar {
    position: sticky;
    top: calc(var(--nav-h) + 24px);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}
.detail-sidebar h3 { font-size: 18px; margin-bottom: 20px; }
.detail-sidebar .btn { margin-bottom: 12px; }
.detail-sidebar .btn-full { width: 100%; }
.detail-sidebar .side-list {
    list-style: none;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.detail-sidebar .side-list li { margin-bottom: 10px; }
.detail-sidebar .side-list a {
    font-size: 14px;
    color: var(--text-muted);
    transition: color 0.2s;
}
.detail-sidebar .side-list a:hover { color: var(--accent); }

.detail-banner {
    height: 360px;
    border-radius: var(--radius);
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.case-detail-hero {
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
    padding: 64px 32px 96px;
}

.case-detail-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(ellipse at 68% 16%, rgba(var(--accent-rgb),0.14), transparent 58%);
}

.case-detail-grid {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
    gap: 48px;
    align-items: center;
}

.case-detail-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.case-detail-tags span {
    padding: 6px 14px;
    border: 1px solid rgba(var(--accent-rgb),0.25);
    border-radius: 999px;
    color: var(--accent);
    background: rgba(var(--accent-rgb),0.08);
    font-size: 13px;
}

.case-detail-copy h1 {
    font-size: clamp(36px, 5vw, 62px);
    line-height: 1.08;
    font-weight: 800;
    margin-bottom: 22px;
}

.case-detail-desc {
    color: #b8b8b8;
    font-size: 17px;
    line-height: 1.85;
}

.case-detail-visual {
    min-height: 360px;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.08);
    overflow: hidden;
    position: relative;
    box-shadow: 0 30px 90px rgba(0,0,0,0.45);
}

.case-detail-visual.cms-has-image {
    background-repeat: no-repeat !important;
    background-size: cover !important;
    background-position: center !important;
}

.case-detail-visual.cms-has-image > *,
.case-detail-visual.cms-has-image::before,
.case-detail-visual.cms-has-image::after {
    content: none !important;
    display: none !important;
}

.case-detail-body {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
    margin-top: 56px;
}

.case-detail-main,
.case-detail-side {
    background: rgba(255,255,255,0.025);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
}

.case-detail-main h2,
.case-detail-side h3 {
    font-size: 22px;
    margin-bottom: 14px;
}

.case-detail-main p,
.case-detail-side p {
    color: var(--text-muted);
    line-height: 1.85;
    margin-bottom: 26px;
}

.case-detail-side {
    position: sticky;
    top: calc(var(--nav-h) + 24px);
}

.case-detail-side .btn { margin-top: 12px; }
.case-detail-loading { padding: 120px 32px; text-align: center; color: var(--text-muted); }

.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
.tag-list span {
    padding: 6px 14px;
    background: rgba(var(--accent-rgb),0.1);
    border: 1px solid rgba(var(--accent-rgb),0.2);
    border-radius: 100px;
    font-size: 13px;
    color: var(--accent);
}

.home-preview {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
}

.home-two-row-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: stretch;
}

.home-two-row-grid .link-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
}

.home-two-row-grid .link-card-visual {
    height: 176px;
    flex: 0 0 176px;
}

.home-two-row-grid .link-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 22px;
}

.home-two-row-grid .link-card-body p {
    display: -webkit-box;
    min-height: 45px;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.home-two-row-grid .link-card-body .more {
    margin-top: auto;
}

.case-card .case-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 12px;
    color: var(--accent);
}
.case-card .case-meta span {
    padding: 4px 10px;
    background: rgba(var(--accent-rgb),0.1);
    border-radius: 100px;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.about-visual {
    height: 400px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, #0d1f1a, #1a3a2e);
    border: 1px solid var(--border);
}

.contact-hero {
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
    padding: 68px 32px 42px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 48px;
    align-items: end;
}

.contact-hero::before {
    content: '';
    position: absolute;
    inset: -120px 12% auto;
    height: 320px;
    background: radial-gradient(ellipse, rgba(var(--accent-rgb),0.12), transparent 68%);
    pointer-events: none;
}

.contact-hero-copy,
.contact-hero-promise { position: relative; }

.contact-eyebrow,
.contact-kicker {
    color: var(--accent);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.18em;
}

.contact-hero h1 {
    margin: 10px 0 14px;
    font-size: clamp(44px, 6vw, 72px);
    line-height: 1.08;
    letter-spacing: -0.04em;
}

.contact-hero-copy p {
    color: var(--text-muted);
    font-size: 17px;
}

.contact-hero-promise {
    display: flex;
    align-items: center;
    gap: 18px;
    min-height: 114px;
    padding: 22px;
    border: 1px solid rgba(var(--accent-rgb),0.22);
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(var(--accent-rgb),0.12), rgba(0,180,216,0.035));
}

.contact-promise-value {
    color: var(--accent);
    font-size: 36px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.05em;
}

.contact-hero-promise strong,
.contact-hero-promise span { display: block; }
.contact-hero-promise strong { margin-bottom: 4px; font-size: 15px; }
.contact-hero-promise div span { color: var(--text-muted); font-size: 12px; }

.contact-page {
    max-width: 1280px;
    margin: 0 auto;
    padding: 28px 32px 34px;
}

.contact-panel {
    padding: clamp(28px, 4vw, 46px);
    border: 1px solid var(--border);
    border-radius: 24px;
    box-shadow: 0 24px 70px rgba(0,0,0,0.18);
}

.contact-overview {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(270px, 0.55fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: stretch;
    background: linear-gradient(145deg, rgba(var(--accent-rgb),0.075), rgba(18,18,18,0.96) 42%);
}

.contact-info-main {
    min-width: 0;
    padding: 6px 0;
}

.contact-info-main h2 { margin: 8px 0 12px; font-size: clamp(26px, 3vw, 34px); }
.contact-info-main > p { max-width: 650px; margin-bottom: 26px; color: var(--text-muted); line-height: 1.8; }

.contact-primary-call {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
    padding: 18px 20px;
    border: 1px solid rgba(var(--accent-rgb),0.24);
    border-radius: 14px;
    background: rgba(var(--accent-rgb),0.09);
    transition: transform 0.2s, border-color 0.2s;
}

.contact-primary-call:hover { transform: translateY(-2px); border-color: var(--accent); }
.contact-primary-call span { color: var(--text-muted); font-size: 13px; }
.contact-primary-call strong { color: var(--accent); font-size: 18px; white-space: nowrap; }

.contact-method-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    min-width: 0;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(255,255,255,0.025);
}

.contact-method-icon {
    width: 44px;
    height: 44px;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-rgb),0.11);
    color: var(--accent);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 0.06em;
    flex-shrink: 0;
}

.contact-method > div { min-width: 0; }
.contact-method strong { display: block; margin-bottom: 4px; font-size: 13px; }
.contact-method a,
.contact-method div > span { display: block; color: var(--text-muted); font-size: 12px; overflow-wrap: anywhere; }
.contact-method a:hover { color: var(--accent); }

.contact-wechat-card {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    min-width: 0;
    padding: clamp(24px, 3vw, 36px);
    border: 1px solid rgba(var(--accent-rgb),0.18);
    border-radius: 20px;
    background:
        radial-gradient(circle at 50% 15%, rgba(var(--accent-rgb),0.15), transparent 42%),
        rgba(4, 14, 12, 0.72);
    text-align: center;
}

.contact-wechat-card h2 {
    margin: 8px 0 8px;
    font-size: clamp(24px, 2.5vw, 32px);
}

.contact-wechat-card > p {
    max-width: 290px;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.75;
}

.contact-qr-shell {
    width: min(220px, 100%);
    margin: 24px auto 18px;
    border-radius: 22px;
    box-shadow: 0 22px 54px rgba(0,0,0,0.28), 0 0 0 8px rgba(var(--accent-rgb),0.035);
}

.contact-wechat-card > strong {
    color: #ecfffb;
    font-size: 14px;
    line-height: 1.55;
}

.contact-wechat-card > span:last-child {
    margin-top: 7px;
    color: #657d77;
    font-size: 11px;
    line-height: 1.5;
}

.contact-process {
    max-width: 1216px;
    margin: 0 auto 96px;
    padding: 24px 28px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: rgba(255,255,255,0.022);
}

.contact-process-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 8px 24px;
    border-right: 1px solid var(--border);
}
.contact-process-item:last-child { border-right: 0; }
.contact-process-item > span { color: var(--accent); font-size: 12px; font-weight: 800; }
.contact-process-item strong { display: block; margin-bottom: 3px; font-size: 14px; }
.contact-process-item p { color: var(--text-muted); font-size: 12px; }

@media (max-width: 1024px) {
    .detail-layout { grid-template-columns: 1fr; }
    .detail-sidebar { position: static; }
    .home-preview,
    .home-solution-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .about-grid { grid-template-columns: 1fr; }
    .contact-hero { grid-template-columns: 1fr; gap: 28px; }
    .contact-hero-promise { max-width: 540px; }
    .contact-overview { grid-template-columns: 1fr; }
    .contact-wechat-card { max-width: 520px; width: 100%; justify-self: center; }
    .contact-process { margin-right: 32px; margin-left: 32px; }
}

/* CMS 编辑模式高亮（控制台 iframe 内） */
.cms-edit-mode [data-cms].cms-editable {
    outline: 2px dashed rgba(var(--accent-rgb), 0.5) !important;
    outline-offset: 2px;
    cursor: pointer !important;
}
.cms-edit-mode [data-cms].cms-editable:hover {
    outline-color: #00d4aa !important;
    background: rgba(var(--accent-rgb), 0.06) !important;
}

.cms-edit-mode .cms-repeater-editable {
    position: relative;
    outline: 2px solid rgba(var(--accent-rgb), 0.28);
    outline-offset: 8px;
}

.cms-repeater-toolbar {
    position: absolute;
    top: -42px;
    left: 0;
    z-index: 20;
}

.cms-repeater-toolbar button,
.cms-card-delete {
    border: 1px solid rgba(var(--accent-rgb), 0.45);
    background: rgba(0, 20, 18, 0.92);
    color: #00d4aa;
    border-radius: 6px;
    padding: 7px 12px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(0,0,0,0.28);
}

.cms-card-editable {
    position: relative;
}

.cms-card-delete {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 21;
    border-color: rgba(255, 107, 107, 0.5);
    color: #ff8585;
}

.cms-repeater-add-card {
    min-height: 220px;
    border: 2px dashed rgba(var(--accent-rgb), 0.45);
    background: rgba(var(--accent-rgb), 0.06);
    color: #00d4aa;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    font: inherit;
    transition: border-color .2s ease, background .2s ease, transform .2s ease;
}

.cms-repeater-add-card:hover {
    border-color: #00d4aa;
    background: rgba(var(--accent-rgb), 0.12);
    transform: translateY(-2px);
}

.cms-repeater-add-card span {
    width: 42px;
    height: 42px;
    border: 1px solid rgba(var(--accent-rgb), 0.5);
    border-radius: 999px;
    display: grid;
    place-items: center;
    font-size: 28px;
    line-height: 1;
}

.cms-repeater-add-card strong {
    font-size: 15px;
    font-weight: 700;
}

@media (max-width: 768px) {
    .nav-links, .nav-actions { display: none; }
    .nav-toggle { display: flex; margin-left: auto; }
    .nav-inner { padding: 0 18px; }
    .nav .logo-image-only { width: 138px; height: 48px; margin-right: 0; }

    .nav.open .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: var(--nav-h);
        left: 0; right: 0;
        background: rgba(10,10,10,0.95);
        backdrop-filter: blur(20px);
        padding: 24px 32px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
    }
    .nav.open .nav-actions {
        display: flex;
        position: fixed;
        top: calc(var(--nav-h) + 200px);
        left: 32px; right: 32px;
        flex-direction: column;
    }

    .hero {
        gap: 40px;
        padding: calc(var(--nav-h) + 38px) 20px 64px;
        text-align: left;
    }
    .hero-title { font-size: 38px; line-height: 1.15; }
    .hero-line { white-space: normal; }
    .hero-desc { margin: 0 0 28px; font-size: 15px; }
    .hero-cta { justify-content: flex-start; }
    .hero-note { text-align: left; }
    .screen-mockup { padding: 12px 12px 10px; border-radius: 16px; }
    .screen-frame { width: 100%; padding: 6px; }
    .hero-visual-meta { flex-wrap: wrap; row-gap: 5px; }
    .hero-visual-meta strong { width: 100%; margin-left: 0; }
    .home-preview,
    .home-solution-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .security-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer .logo-image-only { width: 176px; height: 64px; }
    .footer-bottom { flex-direction: column; gap: 8px; }
    .solutions-cta { flex-direction: column; align-items: center; }
    .contact-hero { padding: 46px 20px 24px; }
    .contact-hero h1 { font-size: 44px; }
    .contact-hero-copy p { font-size: 14px; }
    .contact-hero-promise { min-height: 0; padding: 18px; }
    .contact-page { padding: 20px 20px 28px; }
    .contact-panel { padding: 24px 20px; border-radius: 18px; }
    .contact-overview { gap: 24px; }
    .contact-wechat-card { padding: 26px 18px; }
    .contact-qr-shell { width: min(200px, 82vw); }
    .contact-primary-call { align-items: flex-start; flex-direction: column; gap: 5px; }
    .contact-primary-call strong { white-space: normal; }
    .contact-method-grid { grid-template-columns: 1fr; }
    .contact-process { grid-template-columns: 1fr; margin: 0 20px 72px; padding: 10px 20px; }
    .contact-process-item { padding: 16px 0; border-right: 0; border-bottom: 1px solid var(--border); }
    .contact-process-item:last-child { border-bottom: 0; }
}

/* ===== Configurable light theme ===== */
.seo-service-card {
    background: linear-gradient(145deg, var(--bg-card), var(--bg-elevated));
    box-shadow: 0 14px 36px var(--shadow-soft);
}

.nav-inner {
    border-color: var(--border);
    background:
        linear-gradient(100deg, rgba(var(--accent-rgb), 0.06), transparent 34%),
        color-mix(in srgb, var(--bg-card) 92%, transparent);
    box-shadow: 0 12px 36px var(--shadow-soft);
}

.nav-inner::before {
    background: radial-gradient(circle at 20% 50%, rgba(var(--accent-rgb), 0.1), transparent 70%);
}

.nav.scrolled .nav-inner {
    border-color: var(--border-strong);
    background: color-mix(in srgb, var(--bg-card) 96%, transparent);
    box-shadow: 0 14px 40px var(--shadow-strong);
}

.dropdown-menu {
    border-color: var(--border);
    background: color-mix(in srgb, var(--bg-card) 97%, transparent);
    box-shadow: 0 18px 42px var(--shadow-soft);
}

.dropdown-item:hover {
    background: var(--accent-soft);
}

.hero {
    background: var(--bg);
}

.hero::before {
    background:
        linear-gradient(color-mix(in srgb, var(--text-muted) 8%, transparent) 1px, transparent 1px),
        linear-gradient(90deg, color-mix(in srgb, var(--text-muted) 8%, transparent) 1px, transparent 1px);
}

.hero-backdrop {
    filter: saturate(.72) brightness(1.12);
}

.hero-backdrop::before {
    background:
        linear-gradient(90deg,
            var(--bg) 0%,
            color-mix(in srgb, var(--bg) 97%, transparent) 30%,
            color-mix(in srgb, var(--bg) 86%, transparent) 53%,
            color-mix(in srgb, var(--bg) 72%, transparent) 74%,
            color-mix(in srgb, var(--bg) 91%, transparent) 100%),
        linear-gradient(180deg,
            color-mix(in srgb, var(--bg) 90%, transparent) 0%,
            color-mix(in srgb, var(--bg) 34%, transparent) 45%,
            var(--bg) 100%);
}

.hero-backdrop::after {
    background:
        radial-gradient(ellipse at 72% 42%, rgba(var(--accent-rgb), 0.1), transparent 38%),
        linear-gradient(90deg, transparent 0 58%, color-mix(in srgb, var(--text-muted) 8%, transparent) 58% 58.08%, transparent 58.08%);
}

.hero-title {
    text-shadow: none;
}

.hero-badge {
    border-color: var(--accent-border);
    background: var(--accent-soft);
    color: var(--accent);
}

.hero-line-accent {
    color: var(--accent);
}

.hero-desc,
.hero-note,
.hero-visual-meta,
.hero-visual-meta strong {
    color: var(--text-muted);
}

.hero-cta .btn-primary {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--on-accent);
    box-shadow: 0 10px 24px var(--accent-glow);
}

.hero-cta .btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 12px 30px var(--accent-glow);
}

.hero-cta .btn-outline {
    border-color: var(--border-strong);
    background: color-mix(in srgb, var(--bg-card) 88%, transparent);
    color: var(--text);
}

.screen-mockup {
    border-color: var(--border-strong);
    background: color-mix(in srgb, var(--bg-card) 94%, var(--bg-elevated));
    box-shadow: 0 28px 70px var(--shadow-strong);
}

.screen-mockup::after {
    background: var(--shadow-strong);
}

.trust-label,
.hero-scroll-hint,
.breadcrumb,
.breadcrumb-sep,
.cta-note,
.contact-consent {
    color: var(--text-muted);
}

.scroll-arrow {
    border-color: var(--text-muted);
}

.marquee-group span {
    color: color-mix(in srgb, var(--text-muted) 72%, var(--bg));
}

.marquee-group span:hover {
    color: var(--text);
}

.carousel-card,
.feature-card,
.security-card,
.link-card,
.detail-sidebar,
.contact-panel,
.case-detail-main,
.case-detail-side {
    box-shadow: 0 14px 34px var(--shadow-soft);
}

.carousel-card:hover,
.link-card:hover {
    border-color: var(--accent-border);
    box-shadow: 0 20px 50px var(--shadow-strong);
}

.feature-card:hover,
.security-card:hover {
    border-color: var(--accent-border);
}

.tab-btn.active,
.panel-tags li,
.tag-list span,
.case-card .case-meta span,
.case-detail-tags span,
.contact-method-icon,
.product-more-toggle {
    background: var(--accent-soft);
    border-color: var(--accent-border);
}

.product-more-panel,
.product-more-panel a,
.case-detail-main,
.case-detail-side,
.contact-method,
.contact-process {
    background: color-mix(in srgb, var(--bg-card) 82%, var(--bg-elevated));
}

.contact-form {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    box-shadow: 0 20px 52px var(--shadow-soft);
}

.form-field {
    color: var(--text);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    border-color: var(--border);
    background: var(--bg);
    color: var(--text);
}

.footer-col a,
.footer-wechat p {
    color: var(--text-muted);
}

.page-hero-bg,
.case-detail-bg,
.contact-hero::before {
    background: radial-gradient(ellipse at 50% 0%, rgba(var(--accent-rgb), 0.12), transparent 62%);
}

.case-detail-desc {
    color: var(--text-muted);
}

.case-detail-visual {
    border-color: var(--border);
    box-shadow: 0 24px 60px var(--shadow-strong);
}

.contact-overview {
    background: linear-gradient(145deg, rgba(var(--accent-rgb), 0.08), var(--bg-card) 42%);
}

.contact-primary-call,
.contact-hero-promise {
    border-color: var(--accent-border);
    background: var(--accent-soft);
}

.contact-wechat-card {
    border-color: var(--accent-border);
    background:
        radial-gradient(circle at 50% 15%, rgba(var(--accent-rgb), 0.13), transparent 44%),
        var(--bg-elevated);
}

.contact-wechat-card > strong {
    color: var(--text);
}

.contact-wechat-card > span:last-child {
    color: var(--text-muted);
}

.contact-qr-shell {
    box-shadow: 0 20px 48px var(--shadow-soft), 0 0 0 8px rgba(var(--accent-rgb), 0.04);
}

.cms-edit-mode [data-cms].cms-editable:hover {
    outline-color: var(--accent) !important;
    background: var(--accent-soft) !important;
}

.cms-repeater-toolbar button,
.cms-repeater-add-card {
    border-color: var(--accent-border);
    background: color-mix(in srgb, var(--bg-card) 94%, transparent);
    color: var(--accent);
}

@media (max-width: 768px) {
    .nav.open .nav-links {
        background: color-mix(in srgb, var(--bg-card) 97%, transparent);
        box-shadow: 0 18px 40px var(--shadow-soft);
    }
}

/* ===== Floating contact and customer-service chat ===== */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.nav-contact {
    align-items: center;
    gap: 10px;
}

.nav-contact-name {
    padding: 7px 12px;
    border: 1px solid var(--accent-border);
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
}

.nav-contact-phone {
    display: grid;
    gap: 0;
    min-width: 126px;
    padding: 7px 13px;
    border-radius: 12px;
    background: var(--accent);
    color: var(--on-accent);
    line-height: 1.25;
    transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}

.nav-contact-phone:hover,
.nav-contact-phone:focus-visible {
    background: var(--accent-hover);
    box-shadow: 0 9px 24px var(--accent-glow);
    transform: translateY(-1px);
}

.nav-contact-phone-label {
    font-size: 9px;
    font-weight: 500;
    opacity: .78;
}

.nav-contact-phone strong {
    font-size: 14px;
    letter-spacing: .02em;
}

.contact-dock {
    position: fixed;
    z-index: 980;
    top: 50%;
    right: 20px;
    display: grid;
    gap: 1px;
    width: 66px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--bg-card);
    box-shadow: 0 18px 46px var(--shadow-strong);
    transform: translateY(-50%);
}

.contact-dock-item {
    position: relative;
}

.contact-dock-item:first-child .contact-dock-button { border-radius: 17px 17px 8px 8px; }
.contact-dock-item:last-child .contact-dock-button { border-radius: 8px 8px 17px 17px; }

.contact-dock-button {
    position: relative;
    display: flex;
    width: 64px;
    min-height: 66px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 2px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-muted);
    outline: none;
    transition: color .2s ease, background .2s ease;
}

.contact-dock-item:last-child .contact-dock-button { border-bottom: 0; }
.contact-dock-wechat .contact-dock-button { cursor: default; }

.contact-dock-button:hover,
.contact-dock-button:focus-visible {
    background: var(--accent-soft);
    color: var(--accent);
}

.contact-dock-icon {
    display: grid;
    place-items: center;
    width: 27px;
    height: 27px;
    border-radius: 9px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 15px;
    font-weight: 800;
}

.contact-dock-label {
    font-size: 11px;
    font-weight: 700;
}

.contact-dock-popover {
    position: absolute;
    z-index: 2;
    top: 50%;
    right: calc(100% + 14px);
    width: max-content;
    max-width: min(260px, calc(100vw - 110px));
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: color-mix(in srgb, var(--bg-card) 97%, transparent);
    color: var(--text);
    box-shadow: 0 18px 46px var(--shadow-strong);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translate(8px, -50%);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.contact-dock-wechat:hover .contact-dock-popover,
.contact-dock-wechat:focus-within .contact-dock-popover,
.contact-dock-phone:hover .contact-dock-popover,
.contact-dock-phone:focus-within .contact-dock-popover {
    opacity: 1;
    visibility: visible;
    transform: translate(0, -50%);
}

.contact-dock-qr-popover {
    display: grid;
    justify-items: center;
    gap: 8px;
    width: 208px;
    font-size: 12px;
    text-align: center;
}

.contact-dock-qr-popover > strong {
    font-size: 15px;
}

.contact-dock-qr-shell {
    width: 164px;
    border-radius: 13px;
    box-shadow: 0 12px 28px var(--shadow-soft);
}

.contact-dock-phone-popover {
    display: grid;
    gap: 2px;
    min-width: 190px;
}

.contact-dock-phone-popover span,
.contact-dock-phone-popover small { color: var(--text-muted); }
.contact-dock-phone-popover strong { color: var(--accent); font-size: 19px; letter-spacing: .02em; }

.contact-dock-unread {
    position: absolute;
    top: 10px;
    right: 11px;
    width: 8px;
    height: 8px;
    border: 2px solid var(--bg-card);
    border-radius: 50%;
    background: #e34848;
}

.contact-dock-unread[hidden],
.contact-chat-dialog[hidden] { display: none !important; }

.contact-chat-dialog {
    position: fixed;
    z-index: 1100;
    right: 104px;
    bottom: 24px;
    display: grid;
    grid-template-rows: auto minmax(190px, 1fr) auto auto;
    width: min(390px, calc(100vw - 136px));
    height: min(590px, calc(100vh - 48px));
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--bg-card);
    box-shadow: 0 24px 70px var(--shadow-strong);
    animation: contact-chat-in .2s ease-out;
}

@keyframes contact-chat-in {
    from { opacity: 0; transform: translateY(10px) scale(.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.contact-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 18px 16px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, var(--accent-soft), var(--bg-card) 68%);
}

.contact-chat-header > div {
    display: grid;
    gap: 3px;
}

.contact-chat-header strong { font-size: 16px; }

.contact-chat-status {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 11px;
}

.contact-chat-status i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #d0a23c;
    box-shadow: 0 0 0 4px rgba(208, 162, 60, .12);
}

.contact-chat-status[data-state="online"] i { background: #24a37f; box-shadow: 0 0 0 4px rgba(36, 163, 127, .12); }
.contact-chat-status[data-state="offline"] i,
.contact-chat-status[data-state="error"] i { background: #d46666; box-shadow: 0 0 0 4px rgba(212, 102, 102, .12); }

.contact-chat-close {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 11px;
    color: var(--text-muted);
    font-size: 26px;
    line-height: 1;
}

.contact-chat-close:hover,
.contact-chat-close:focus-visible { background: var(--accent-soft); color: var(--text); }

.contact-chat-messages {
    display: flex;
    overflow-y: auto;
    flex-direction: column;
    gap: 12px;
    padding: 18px;
    background: color-mix(in srgb, var(--bg) 60%, var(--bg-card));
    overscroll-behavior: contain;
}

.contact-chat-message {
    display: flex;
    max-width: 84%;
    flex-direction: column;
    gap: 3px;
}

.contact-chat-message p {
    padding: 10px 13px;
    border: 1px solid var(--border);
    border-radius: 6px 15px 15px;
    background: var(--bg-card);
    color: var(--text);
    font-size: 13px;
    line-height: 1.65;
    overflow-wrap: anywhere;
    white-space: pre-wrap;
}

.contact-chat-message time {
    padding: 0 4px;
    color: var(--text-muted);
    font-size: 9px;
}

.contact-chat-message.is-visitor {
    align-self: flex-end;
    align-items: flex-end;
}

.contact-chat-message.is-visitor p {
    border-color: var(--accent-border);
    border-radius: 15px 6px 15px 15px;
    background: var(--accent);
    color: var(--on-accent);
}

.contact-chat-message.is-pending { opacity: .68; }
.contact-chat-message.is-error p { border-color: #d46666; }
.contact-chat-message.is-error::after { content: '发送失败'; color: #b84747; font-size: 10px; }

.contact-chat-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    padding: 13px 14px;
    border-top: 1px solid var(--border);
    background: var(--bg-card);
}

.contact-chat-form textarea {
    width: 100%;
    min-height: 48px;
    max-height: 112px;
    resize: vertical;
    padding: 11px 12px;
    border: 1px solid var(--border);
    border-radius: 12px;
    outline: none;
    background: var(--bg);
    color: var(--text);
    font: inherit;
    font-size: 13px;
    line-height: 1.5;
}

.contact-chat-form textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.contact-chat-send {
    min-width: 64px;
    min-height: 48px;
    align-self: end;
    border-radius: 12px;
    background: var(--accent);
    color: var(--on-accent);
    font-weight: 700;
}

.contact-chat-send:hover,
.contact-chat-send:focus-visible { background: var(--accent-hover); }

.contact-chat-privacy {
    padding: 0 16px 12px;
    background: var(--bg-card);
    color: var(--text-muted);
    font-size: 9px;
    line-height: 1.5;
    text-align: center;
}

@media (max-width: 1120px) and (min-width: 769px) {
    .nav-inner { gap: 18px; }
    .nav-links { gap: 17px; }
    .nav-contact-name { display: none; }
}

@media (max-width: 768px) {
    .nav.open .nav-actions.nav-contact {
        gap: 10px;
        padding: 14px;
        border: 1px solid var(--border);
        border-radius: 16px;
        background: var(--bg-card);
        box-shadow: 0 14px 34px var(--shadow-soft);
    }

    .nav-contact-name { text-align: center; }
    .nav-contact-phone { justify-items: center; }

    .contact-dock {
        top: auto;
        right: 10px;
        bottom: 84px;
        width: 54px;
        border-radius: 16px;
        transform: none;
    }

    .contact-dock-button {
        width: 52px;
        min-height: 56px;
    }

    .contact-dock-icon { width: 24px; height: 24px; font-size: 13px; }
    .contact-dock-label { font-size: 10px; }
    .contact-dock-item:first-child .contact-dock-button { border-radius: 15px 15px 7px 7px; }
    .contact-dock-item:last-child .contact-dock-button { border-radius: 7px 7px 15px 15px; }
    .contact-dock-popover { right: calc(100% + 10px); max-width: calc(100vw - 84px); }
    .contact-dock-qr-popover { width: 194px; }
    .contact-dock-qr-shell { width: 148px; }
    .contact-dock-phone-popover { min-width: 176px; }

    .contact-chat-dialog {
        right: 10px;
        bottom: 10px;
        width: calc(100vw - 20px);
        height: min(620px, calc(100dvh - 20px));
        border-radius: 18px;
    }

    .contact-chat-header { padding: 15px 14px 13px; }
    .contact-chat-messages { padding: 14px; }
    .contact-chat-form { padding: 11px; }
}

@media (prefers-reduced-motion: reduce) {
    .contact-chat-dialog { animation: none; }
    .contact-dock-popover { transition: none; }
}